Description:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10 And Rule 13)

Title of the invention:
ACTUATOR FOR A STABILIZER LEG SYSTEM
Applicant:
BHARAT FORGE LIMITED
An Indian Entity having address as:
Mundhwa, Pune - 411036,
Maharashtra, India.

The following specification particularly describes the invention and the manner in which it is to be performed.
CROSS-REFERENCE TO RELATED APPLICATIONS AND PRIORITY
[0001] The present application claims no priority from any of the patent application(s).
FIELD OF INVENTION
[0002] The present invention relates to the field of actuator. More particularly, the present invention relates to an actuator system used for operating a stabilizer leg assembly.
BACKGROUND OF THE INVENTION
[0003] This section is intended to introduce the reader to various aspects of art, which may be related to various aspects of the present disclosure that are described or claimed below. This discussion is believed to be helpful in providing the reader with background information to facilitate a better understanding of the various aspects of the present disclosure. Accordingly, it should be understood that these statements in this background section are to be read in this light, and not as admissions of prior art. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also correspond to implementations of the claimed technology.
[0004] A concept of using a stabilizer leg is very commonly used in various automotive applications. The stabilizer legs are also used in various static load carrying applications. Traditionally, the stabilizer legs are used for supporting the vehicle body in order to maintain balance over unusual surface conditions, especially in the earthmovers. Also, in some applications the stabilizer legs are utilized as a stopper body of the vehicle.
[0005] The conventional stabilizer leg is designed to withstand with high amount of impact received from the supported body. These legs are positioned on the ground so that the impact from the body is absorbed with respect to the ground surface. The positioning of the conventional stabilizer leg is performed using hydraulic cylinders. The hydraulic cylinder is provided with a fluid reservoir, fluid conduits, valves, controlling system and many more components. In some existing examples the pneumatic cylinder with associated components is also used for operating the stabilizer legs.
[0006] Further, the conventional stabilizer legs also include different type of a gear trains to transmit motion from hydraulic actuators to the stabilizer legs. The gear trains are also used to achieve different speed ratios for the movement of the leg. Generally, rack and pinion gear train, simple gear train or compound gear train is used to transmit motion.
[0007] The conventional stabilizer leg uses hydraulic system to perform operation, where the hydraulic system includes number of components. These components cause to increase the overall weight of the stabilizer leg system. Also, the design for the stabilizer leg assembly is complex due to large number of components. Further, the hydraulic system causes fluid leakage and requires regular maintenance of the hydraulic valves, cylinder and other components. Thus, more maintenance cost is required in such hydraulically operated stabilizer legs.
[0008] In light of the above stated discussion, there exists a need of an improved actuation system for operating the stabilizer leg assembly to overcome the above stated disadvantages.
SUMMARY OF THE INVENTION
[0009] Before the present system (or apparatus) and method, and its components are described, it is to be understood that this disclosure is not limited to the system and its arrangement as described, as there can be multiple possible embodiments which are not expressly illustrated in the present disclosure. It is also to be understood that the terminology used in the description is for the purpose of describing the versions or embodiments only and is not intended to limit the scope of the present application. This summary is not intended to identify essential features of the claimed subject matter nor is it intended for use in detecting or limiting the scope of the claimed subject matter.
[0010] In one non-limiting embodiment, an actuator system for operating a stabilizer leg assembly is disclosed. The actuator system includes one or more actuating member, at least one driving unit, and at least one gearbox. The one or more actuating member is coupled to the at least one driving unit and the at least one gearbox. The gearbox is configured to convert rotary motion of the driving unit into linear motion of the one or more actuating member. The stabilizer leg assembly includes one or more stabilizer legs configured to support a main body. The one or more actuating member is configured to swing one or more stabilizer leg outward and inward about a pivot connection.
[0011] In an embodiment, at least one gearbox of the actuator system may include a worm and worm wheel housed within a casing.
[0012] In another embodiment, the worm and worm wheel may be configured to linearly move the one or more actuating member. The one or more actuating member may be connected to the one or more stabilizer leg at one end by an articulated joint.
[0013] In yet another embodiment, the other end of the one or more actuating member may be connected to the main body by an articulated joint.
[0014] In yet another embodiment, the worm and worm wheel may be configured to convert rotary motion of the driving unit into linear motion of the one or more actuating member which may lead to swing the one or more stabilizer leg outwardly and inwardly about the pivot connection.
[0015] In yet another embodiment, the one or more stabilizer leg may be configured to swing about the pivot connection arranged between the main body and the stabilizer leg body.
[0016] In yet another embodiment, the pivot connection may be arranged along with at least one of vertical axis, horizontal axis, and inclined axis of the main body.
[0017] In yet another embodiment, the system may include a control unit to control operation of the actuator system and stabilizer leg assembly.
[0018] In yet another embodiment, the control system may be associated with at least one or more sensors, a voltage regulator and a variable frequency drive (VFD).
[0019] In yet another embodiment, the gearbox may include a self-lubricating arrangement for assuring lubrication to the worm and worm wheel.
[0020] In yet another embodiment, the actuator system may include at least one of electric actuator system, hydraulic actuator system, pneumatic actuator system or combination thereof.
[0021] In yet another embodiment, the driving unit may include at least one of electric motor, hydraulic pump, pneumatic pump, or combination thereof.
BRIEF DESCRIPTION OF DRAWINGS
[0022] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0023] Figure 1 illustrates a stabilizer leg assembly (100), in accordance with various embodiment of the present subject matter.
[0024] Figure 2 illustrates a detailed view of an actuator system (102) comprising a driving unit (104), a gearbox (106) and one or more actuating member (108), in accordance with various embodiment of the present subject matter.
[0025] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure.
DETAILED DESCRIPTION
[0026] Reference throughout the specification to “various embodiments,” “some embodiments,” “one embodiment,” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases “in various embodiments,” “in some embodiments,” “in one embodiment,” or “in an embodiment” in places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.
[0027] The words "comprising," "having," "containing," and "including," and other forms thereof, are intended to be equivalent in meaning and be open ended in that an item or items following any one of these words is not meant to be an exhaustive listing of such item or items or meant to be limited to only the listed item or items. It must also be noted that, the singular forms "a," "an," and "the" include plural references unless the context clearly dictates otherwise. For example, the term “an article” may include a plurality of articles unless the context clearly dictates otherwise. Although any methods similar or equivalent to those described herein can be used in the practice or testing of embodiments of the present disclosure, the exemplary methods are described. The disclosed embodiments are merely exemplary of the disclosure, which may be embodied in various forms.
[0028] Various modifications to the embodiment may be readily apparent to those skilled in the art and the generic principles herein may be applied to other embodiments. However, one of ordinary skill in the art may readily recognize that the present disclosure is not intended to be limited to the embodiments illustrated but is to be accorded the widest scope consistent with the principles and features described herein. The detailed description of the invention will be described hereinafter referring to accompanied drawings.
[0029] As required, detailed embodiments of the present invention are disclosed herein; however, it is to be understood that the disclosed embodiments are merely exemplary of the invention, which can be embodied in various forms. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present invention in virtually any appropriately detailed structure. Further, the terms and phrases used herein are not intended to be limiting but rather to provide an understandable description of the invention.
[0030] Those with ordinary skill in the art will appreciate that the elements in the figures are illustrated for simplicity and clarity and are not necessarily drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated, relative to other elements, in order to improve the understanding of the present invention. There may be additional components described in the foregoing application that are not depicted on one of the described drawings. In the event such a component is described, but not depicted in a drawing, the absence of such a drawing should not be considered as an omission of such design from the specification.
[0031] In the accompanying drawings components have been represented, showing only specific details that are pertinent for an understanding of the present invention so as not to obscure the disclosure with details that will be readily apparent to those with ordinary skill in the art having the benefit of the description herein.
[0032] In one embodiment, an actuator system (102) for swinging one or more stabilizer leg (114) outwardly and inwardly about a pivot connection is disclosed. The one or more stabilizer leg (114) is used for positioning one or more stabilizer legs (114) on the ground in order to absorb the impact load received from a main body (110). Further, the actuator system (102) is installed which provides linear motion to the one or more stabilizer leg (114) in order to swing about axis of a pivot connection (112). Preferably, the actuator system (102) includes a driving unit (104), one or more actuating members (108) and a gearbox (106) to provide drive to the one or more stabilizer leg (114).
[0033] In accordance with an embodiment of the present subject matter, referring to figure 1 and figure 2, a stabilizer leg assembly (100) and the actuator system (102) is described herein.
[0034] In an embodiment, the actuator system (102) for operating a stabilizer leg assembly (100) is disclosed. Further, the actuator system (102) includes the one or more actuating members (108), the driving unit (104) and, the gearbox (106). Further, the stabilizer leg assembly (100) includes the one or more stabilizer leg (114), the main body (110) and the pivot connection (112). Furthermore, the one or more actuating member (108) is connected to the one or more stabilizer leg (114) at one end by an articulated joint (116a). Also, the other end of the one or more actuating member (108) is connected to the main body (110) by an articulated joint (116b). Further, the gearbox (106) is provided to convert rotary motion of the driving unit (104) into linear motion of the one or more actuating member (108). Furthermore, one or more actuating member (108) is configured to swing one or more stabilizer leg (114) outwardly and inwardly about the pivot connection (112).
[0035] In another embodiment, the one or more actuating member (108) of the actuator system (102) may include at least a lead screw (not shown), an extend limit switch (not shown), an retract limit switch (not shown) and a stroke rod (not shown). Further, the one or more actuating member (108) may be arranged approximately perpendicular to the one or more stabilizer leg (108). Furthermore, the rotary motion from the driving unit (104) may be transferred to the one or more actuating member (108) by means of the gearbox (106). Additionally, the stroke rod of the one or more actuating member (108) may extend or retract linearly which may further lead to swing the one or more stabilizer leg (114) about the pivoting connection (112).
[0036] In an yet another embodiment, the actuator system (102) may be an integrated system within a single casing. Further, the integrated actuator system (not shown) may include at least the driving unit, the gearbox, the lead screw, the stroke rod, the extend limit switch and the retract limit switch in the single compact casing.
[0037] In yet another embodiment, the driving unit (104) of the actuator system (102) may be arranged approximately perpendicular to the one or more actuating member (108). Further, the driving unit (104) may further connect to the gearbox (106) which may be configured to convert rotary motion into linear motion of the one or more actuating member (108). In addition, the driving unit (104) may be operated in clockwise and anti-clockwise direction in order to achieve outward and inward swing motion of the one or more stabilizer leg (114). Further, the speed of the driving unit (104) may be adjusted by a variable frequency drive (VFD). Furthermore, the voltage supply of the driving unit (104) may be regulated by the voltage regulator.
[0038] In yet another embodiment, the driving unit (104) used in the actuator system (102) may be at least one of DC motor, AC motor, stepper motor, servo motor, universal motor, linear motor, reluctance motor, switched reluctance motor and homopolar motor. Further, the driving unit (104) may be arranged perpendicular or parallel to the linear motion of the one or more actuating member (108).
[0039] In yet another embodiment, the gearbox (106) installed within the actuator system (102) may include a worm and worm wheel. In an example, the worm and worm wheel may be housed within a metal casing. In another example, the worm and worm wheel may be housed within the casing made of any suitable material. Further, the worm and worm wheel may be configured to move the one or more actuating member (108) linearly. Furthermore, the worm and worm wheel may be configured to convert rotary motion of the driving unit (104) into linear motion of the one or more actuating member (108) which further may lead to displace the one or more stabilizer leg (114) to swing outwardly and inwardly about the pivot axis (112). In addition, the gearbox (106) may include a self-lubricating arrangement for assuring the lubricants to the worm and worm wheel.
[0040] In yet another embodiment, the gearbox (106) used in the actuator system (102) may house one of the worm and worm wheel, a rack and pinon gear, one or more spur gears, one or more helical gears, one or more planetary gears, one or more crown gears, one or more spindle gears, or one or more hypoid gears. Further, the gearbox (106) may include the combination of the one or more type of gear. Furthermore, the geartrain is configured to convert the rotary motion of the driving unit (104) into linear motion of one or more actuating member (108).
[0041] Alternatively, the gearbox (106) may be self-lubricating in order to lubricate the the worm and worm wheel. Further, one or more lubricant or mixture of lubricant may be used to lubricate the worm and worm wheel withing the gearbox (106). In a non-limiting embodiment, the one or more lubricant may include but not limited to oil, grease, gel and wax.
[0042] In one embodiment, the actuator system (102) may include at least one of electric actuator system, hydraulic actuator system, pneumatic actuator system or combination thereof. Furthermore, the driving unit (104) may include at least one of electric motor, hydraulic pump, pneumatic pump, or combination thereof. The actuator system may also include one or more reservoirs, one or more valves, one or more tubes, one or more ports and one or more controllers.
[0043] In another embodiment, the actuating member (108) may include locking arrangement. The locking arrangement may be possible by means of using locking pins or probes arranged in the actuating member (108) casing. The locking arrangement may be utilized to hold or drive the stabilizer leg (114) at certain angle or position.
[0044] In yet another embodiment, the one or more stabilizer leg (114) may be configured to swing outwardly and inwardly about the pivot connection (106). Further, the one or more stabilizer leg (114) may be a supporting element configured to absorb the impact acting upon the main body (110). Further, the one or more stabilizer leg (114) may include plurality of springs within the leg body in order to absorb the impact. Furthermore, the pivot connection (112) may be arranged between the main body (110) and one or more stabilizer leg (114). Also, the pivot connection (112) may be arranged along with one of vertical, horizontal, and inclined axis of the main body (110). Further, the pivot connection (112) may include a heavy-duty type pivot for accommodating one or more heavy stabilizer leg (114). Furthermore, multiple stabilizer leg (114) may be installed to support the main body (110) along with the respective actuator systems (102).
[0045] In yet another embodiment, the one or more stabilizer leg (114) may include an extending rod (not shown) configured to extend and retract along with the length of the one or more stabilizer leg (114) towards the ground. Further, the extending rod may be at least a cylinder, a telescopic tube and a metal block powered by hydraulic, electric, pneumatic actuation, and combination thereof. Further, the extending rod may include a spring within the hollow body in order to absorb the impact from the main body (105). Further, the hollow body of the extending rod may comprise at least a coil spring, a friction spring, a torsion spring, and a constant force spring.
[0046] In yet another embodiment, the pivot connection (112) used in the stabilizer leg assembly (100) may include but not limited to pin pivot, knuckle pivot, swing arm pivot and offset pivot. Furthermore, the pivot connection (112) may be arranged along with one of vertical, horizontal, and inclined axis of the main body (110).
[0047] Alternatively, the actuator system (102) for operating the one or more stabilizer leg (114) may include a control unit (not shown). Further, the control unit may control the operation of the actuator system (102) and the stabilizer leg assembly (100). Furthermore, the control unit may control a variable frequency drive (VFD) which may be configured to adjust the speed of the driving unit (104). In addition, the control unit may include a voltage regulator configured to regulate the voltage supplied to the driving unit (104). Further, the control unit may include one or more sensors to detect the movement of the one or more stabilizer leg (114). Furthermore, the control unit may include one or more sensors to detect an obstacle in the operating region of the stabilizer leg assembly (100).
[0048] In an exemplary embodiment, the stabilizer leg assembly (100) may include a plurality of actuating member for a single stabilizer leg (114). Further, the single stabilizer leg (114) may include at least one actuating member performing outward movement and at least one actuating member performing inward movement about the pivot connection (106). Furthermore, the actuating members may use power from common or individual driving units. In addition, the actuating members may use drive from an integrated or individual gearbox.
[0049] More specifically, an integrated gearbox and common driving unit may be used for plurality of the actuating members configured to swing the single stabilizer leg (114) outwardly about pivot connection (112). Further, an integrated gearbox and common driving unit may be used for plurality of the actuating members configured to swing the single stabilizer leg (114) inwardly about pivot connection (112).
[0050] In yet another exemplary embodiment, the stabilizer leg assembly (100) with outwardly and inwardly swinging motion using the actuator system (102) may be used in the applications not limited to agricultural vehicles, earthmovers, construction vehicles, projectile launcher, artillery guns, military vehicles, robots, spacecraft landers and launch pads. Further, the stabilizer leg assembly (100) may be also used to support any heavy mechanical body experiencing a reverse impact.
[0051] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in agricultural vehicles including a tractor, a trailer and a thresher machine. Further, the tractor may be supported over an irregular ground surface by means of one or more stabilizing leg (114). Further, the trailers used for carrying seeds, and other agricultural inventories may be supported by means of the one or more stabilizer legs (114) in non-operational condition. Furthermore, the thresher machine may be supported by plurality of stabilizer legs in order to damp the vibrations produced during threshing operation.
[0052] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in the earthmover machines including an excavator, a wheel loader, a backhoe loader, a trencher and many other. Further, the one or more stabilizer legs (114) may provide support to the heavy main body to accommodate firmly over uneven ground surface. Furthermore, the one or more stabilizer legs (114) may also provide support in order to lift the body of the vehicle from the ground surface.
[0053] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in construction vehicles. Further, the construction vehicles may include the earthmovers and also a concrete mixing truck, a vehicle mounted braker, an articulated dump truck and a material lifting crane. Furthermore, the one or more stabilizer legs (114) may be more suitable for carrying high vibrations during braking, drilling, mixing and lifting work.
[0054] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in defence systems. Further, the stabilizer leg assembly (100) may be specifically used for stabilizing a ground mounted artillery gun, a vehicle mounted artillery gun, a ship mounted artillery gun and a missile launcher system. Further, the stabilizer leg assembly (100) may further effectively damp the recoil impact obtained after firing a projectile.
[0055] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in space technology. Further, the assembly (100) may be used in the launch pads for the space crafts and the surface landers. Further, the one or more stabilizer legs (114) may withstand with high impact received during launch of the spacecraft. Further, the one or more stabilizer legs (114) may support the landing vehicles to minimize the impact obtained during landing of the spacecraft.
[0056] In yet another exemplary embodiment, the stabilizer leg assembly (100) with the actuator system (102) may be used in the robotics application where large impact may be generated during operation. Further, the robotic feeders, loaders and lifters may be supported by the stabilizer leg assembly (100) in order to damp shocks experienced by the body.
[0057] The invention is further defined by at least the examples provided in the following items:
Item 1 An actuator system (102) for operating a stabilizer leg assembly (100), the actuator system (102) comprising:
one or more actuating member (108);
at least one driving unit (104); and
at least one gearbox (106), wherein the one or more actuating member (108) is coupled to the at least one driving unit (104) and the at least one gearbox (106), wherein the gearbox (106) is configured to convert rotary motion of the driving unit (104) into linear motion of the one or more actuating member (108), wherein the stabilizer leg assembly (100) comprises one or more stabilizer leg (114) configured to support a main body (110),
wherein the one or more actuating member (108) is configured to swing one or more stabilizer leg (114) outward and inward about a pivot connection (112).
Item 2 The actuator system (102) of Item 1, wherein the at least one gearbox (106) comprises a worm and worm wheel housed within a casing, wherein the worm and worm wheel configured to linearly move the one or more actuating member (108), wherein the one or more actuating member (108) is connected to the one or more stabilizer leg (114) at one end by an articulated joint (116a).
Item 3 The actuator system (102) of Item 1, wherein the one or more stabilizer leg (114) of the stabilizer leg assembly (100) is configured to swing about the pivot connection (112) arranged between the main body (110) and the stabilizer leg body (114), wherein the pivot connection (112) is arranged along with at least one of vertical axis, horizontal axis, and inclined axis of the main body (110).
Item 4 The actuator system (102) of Item 1 and 2, wherein the other end of the one or more actuating member (108) is connected to the main body (110) by an articulated joint (116b).
Item 5 The actuator system (102) of Item 1, 2 and 4, wherein the worm and worm wheel are configured to convert rotary motion of the driving unit (104) into linear motion of one or more actuating member (108) which leads to swing the one or more stabilizer leg (114) outwardly and inwardly about the pivot connection (112).
Item 6 The actuator system (102) of Item 1, wherein the system (102) comprises a control unit to control operation of the actuator system (102) and stabilizer leg assembly (100).
Item 7 The actuator system (102) of Item 1 and 6, wherein the control system is associated with at least one or more sensors, a voltage regulator, and a variable frequency drive (VFD).
Item 8 The actuator system (102) of Item 1, wherein the gearbox (106) comprises a self-lubricating arrangement to assure lubrication to the worm and worm wheel.
Item 9 The actuator system (102) of Item 1, wherein the actuator system (102) is at least one of electric actuator system, hydraulic actuator system, pneumatic actuator system or combination thereof, wherein the driving unit (104) is at least one of electric motor, hydraulic pump, pneumatic pump, or combination thereof.
[0058] The foregoing description shall be interpreted as illustrative and not in any limiting sense. A person of ordinary skill in the art would understand that certain modifications could come within the scope of this disclosure.
[0059] The embodiments, examples, and alternatives of the preceding paragraphs or the description, including any of their various aspects or respective individual feature(s), may be taken independently or in any combination. Features described in connection with one embodiment are applicable to all embodiments unless such features are incompatible.
, Claims:WE CLAIM:
1. An actuator system (102) for operating a stabilizer leg assembly (100), the actuator system (102) comprising:
one or more actuating member (108);
at least one driving unit (104); and
at least one gearbox (106), wherein the one or more actuating member (108) is coupled to the at least one driving unit (104) and the at least one gearbox (106), wherein the gearbox (106) is configured to convert rotary motion of the driving unit (104) into linear motion of the one or more actuating member (108), wherein the stabilizer leg assembly (100) comprises one or more stabilizer leg (114) configured to support a main body (110),
wherein the one or more actuating member (108) is configured to swing one or more stabilizer leg (114) outward and inward about a pivot connection (112).
2. The actuator system (102) as claimed in claim 1, wherein the at least one gearbox (106) comprises a worm and worm wheel housed within a casing, wherein the worm and worm wheel configured to linearly move the one or more actuating member (108), wherein the one or more actuating member (108) is connected to the one or more stabilizer leg (114) at one end by an articulated joint (116a).
3. The actuator system (102) as claimed in claim 1, wherein the one or more stabilizer leg (114) of the stabilizer leg assembly (100) is configured to swing about the pivot connection (112) arranged between the main body (110) and the stabilizer leg body (114), wherein the pivot connection (112) is arranged along with at least one of vertical axis, horizontal axis, and inclined axis of the main body (110).
4. The actuator system (102) as claimed in claim, 1 and 2, wherein the other end of the one or more actuating member (108) is connected to the main body (110) by an articulated joint (116b).
5. The actuator system (102) as claimed in claim 1, 2 and 4, wherein the worm and worm wheel are configured to convert rotary motion of the driving unit (104) into linear motion of one or more actuating member (108) which leads to swing the one or more stabilizer leg (114) outwardly and inwardly about the pivot connection (112).
6. The actuator system (102) as claimed in claim 1, wherein the system (102) comprises a control unit to control operation of the actuator system (102) and stabilizer leg assembly (100).
7. The actuator system (102) as claimed in claim 1 and 6, wherein the control system is associated with at least one or more sensors, a voltage regulator, and a variable frequency drive (VFD).
8. The actuator system (102) as claimed in claim 1, wherein the gearbox (106) comprises a self-lubricating arrangement to assure lubrication to the worm and worm wheel.
9. The actuator system (102) as claimed in claim 1, wherein the actuator system (102) is at least one of electric actuator system, hydraulic actuator system, pneumatic actuator system or combination thereof, wherein the driving unit (104) is at least one of electric motor, hydraulic pump, pneumatic pump, or combination thereof.
Dated this 13th day of February 2024

Priyank Gupta
Agent for the Applicant
IN/PA-1454