[0001] The present invention relates generally to a ladder. More particularly, the present disclosure relates to an adjustable ladder.

BACKGROUND
[0002] Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
[0003] High rise buildings are often beautiful and inspiring structures that employees and customers alike enjoy, but they can only remain this way, as long as the buildings are properly maintained. There are many specific maintenance tasks at higher points of the buildings that need to be regularly accomplished, including window cleaning, inspections and even structural repair. When the building is very tall, though, it becomes a little more difficult.
[0004] High rise painting contractors use swing stages or abseiling to access the building exterior. Stages consist of platforms with scaffolds hung in ropes or cables that bring workers and resources up and down the building. Abseiling involves the crew rappelling down the building facade to conduct high rise painting. At all times, a secure, stable, load-bearing support system is needed to make such tasks safe. A fall protection system consisting of personal fall arresters or guardrails may also be setup. Electrical hazards are also needed to be mitigated to avert electrocution risks while working at close proximity of power lines. High rise painting contractors do surface clean-ups, re-application of coatings when damaged or chipping, application of protective coatings and decorative coatings to restore the look of the building. The work is tedious and demands precise execution and intense attention to details. It takes a very professional high rise painting contractor to work with the altitude, weather, and gravity at the same time.
[0005] For maintenance, cleaning, and painting of such multi-storeyed buildings, and one needs long ladders to climb up in order to reach there. However, it is very tough to carry a conventional ladder from one place to another in order to perform such tasks. Moreover, a person may get injured while carrying such ladders.
[0006] While climbing conventional ladder, or while performing some task standing at the ladder, a person may get dis-balanced, and may fell from the ladder, thereby, hurting himself/ herself. Moreover, due to overweight or uneven distribution of weight at the ladder the ladder may get dis-balanced. Also, due to slippery surface or presence of water at the surface, the ladder might slip.
[0007] There are challenges that arise simply from the maintenance solutions that are set up to help. These pitfalls include cost of maintenance, obtrusiveness of equipment required and security risks.
[0008] There is, therefore, a need in the art to provide a reliable means to overcome the above-mentioned and other problems, and provide a portable ladder.

OBJECTS OF THE PRESENT DISCLOSURE
[0009] Some of the objects of the present disclosure, which at least one embodiment herein satisfies are as listed herein below.
[00010] It is an object of the present disclosure to provide a ladder that can be adjusted between a first position and a second position.
[00011] It is another object of the present disclosure to provide a ladder including a switch, such that actuation of the switch can facilitate movement of the ladder.
[00012] It is another object of the present disclosure to provide a ladder that can stand firmly without slipping.
[00013] It is another object of the present disclosure to provide a ladder that can handle a large weight.
[00014] It is another object of the present disclosure to provide a means to facilitate safe movement of the ladder when weight on the ladder exceeds a per-defined value.
[00015] It is another object of the present disclosure to provide a cost-effective, reliable, portable, efficient, and robust ladder.

SUMMARY
[00016] The present invention relates generally to a ladder. More particularly, the present disclosure relates to an adjustable ladder.
[00017] An aspect of the present disclosure pertains to an adjustable ladder that may be configured to move between a first position and a second position. The adjustable ladder may comprise sets of elongated members and rungs, where the sets of elongated members may be coupled with the rungs.
[00018] In an aspect, the sets of elongated members may comprise holes and the rungs may comprise extended portions at both ends, such that the extended portions may be fixed in the holes of the elongated members.
[00019] In another aspect, the adjustable ladder may comprise a set of sliding means configured between the sets of elongated members, and may be adapted to facilitate movement of the sets of elongated members with respect to each other.
[00020] In yet another aspect, the adjustable ladder may comprise a switch and a control unit, where the switch and the control unit may be operatively coupled with the ladder, and may be configured to facilitate movement of the ladder between the first position and the second position.
[00021] In an aspect, the adjustable ladder can include a diaphragm to control pressure associated with the control unit and the switch when weight on the ladder exceeds a pre-defined safety limit.
[00022] In an aspect, the adjustable ladder may comprise a protecting element configured at a bottom end of each of the one or more sets of elongated members to avert slipping of the ladder.
[00023] In an aspect, the adjustable ladder may be easily portable, cost-effective, and built up of robust materials.

BRIEF DESCRIPTION OF DRAWINGS
[00024] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. The diagrams are for illustration only, which thus is not a limitation of the present disclosure.
[00025] FIGs. 1A and 1B illustrate exemplary diagrams of the proposed adjustable ladder to illustrate its overall working in accordance with an embodiment of the present disclosure.

DETAILED DESCRIPTION
[00026] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
[00027] In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments of the present invention. It will be apparent to one skilled in the art that embodiments of the present invention may be practiced without some of these specific details.
[00028] If the specification states a component or feature “may”, “can”, “could”, or “might” be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00029] As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
[00030] The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
[00031] Thus, for example, it will be appreciated by those of ordinary skill in the art that the diagrams, schematics, illustrations, and the like represent conceptual views or processes illustrating systems and methods embodying this invention. Those of ordinary skill in the art further understand that the exemplary hardware, software, processes, methods, and/or operating systems described herein are for illustrative purposes and, thus, are not intended to be limited to any particular named element.
[00032] Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the "invention" may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the "invention" will refer to subject matter recited in one or more, but not necessarily all, of the claims.
[00033] Various terms as used herein are shown below. To the extent a term used in a claim is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
[00034] The present invention relates generally to a ladder. More particularly, the present disclosure relates to an adjustable ladder.
[00035] According to an aspect, the present disclosure discloses an adjustable ladder including: one or more sets of elongated members, wherein each of the sets of elongated members includes two parallel members separated by a first predefined distance, and configured with a plurality of holes; a plurality of rungs removably coupled to the one or more set of elongated members, wherein each of the plurality of rungs includes one or more extended portions, such that each of the one or more extended portions can be removably fixed in at least one of the plurality of holes; and wherein each of the one or more sets of elongated members can be movably coupled to each other, and configured to move between a first position and a second position, such that the second position is at a second pre-defined distance from the first position.
[00036] In an embodiment, the ladder includes a set of sliding means configured between the one or more sets of elongated members, and adapted to facilitate movement of the one or more sets of elongated members with respect to each other.
[00037] In an embodiment, the one or more sets of elongated members can include a first set of elongated members and a second set of elongated members, each movably coupled to each other, and wherein the first position can correspond to a position where a bottom end of the second set of elongated members is adjacent to a bottom end of the first set of elongated members, and the second position can correspond to a position where the bottom end of the second set of elongated members is at the second predefined distance from bottom end of the first set of elongated members
[00038] In an embodiment, the ladder includes a switch operatively coupled to the one or more sets of elongated members, and configured to enable movement of the one or more sets of elongated members between the first position and the second position.
[00039] In an embodiment, the ladder includes a control unit operatively coupled to the switch and at least one of the one or more sets of elongated members, and configured to generate a pre-determined mechanical force, based on actuation of the switch, to facilitate movement of the one or more sets of elongated members between the first position and the second position.
[00040] In an exemplary embodiment, the control unit can include a hydraulic motor configured with a hydraulic cylinder.
[00041] In an embodiment, the ladder includes a diaphragm operatively coupled to the switch, the control unit, and the ladder, and configured to control pressure associated with the control unit and the switch when weight on the ladder exceeds a pre-defined safety limit.
[00042] In an embodiment, the second pre-defined distance can be 15 feet and the pre-defined safety limit of the ladder can be 200 kilograms (kg).
[00043] In an embodiment, the ladder includes a protecting element configured at a bottom end of each of the one or more sets of elongated members to avert slipping of the ladder, wherein the protecting element can be selected from a non-slipping material comprising any or a combination of rubber, foam, sponge, and cork.
[00044] In an embodiment, the one or more sets of elongated members and the plurality of rungs can be made of a material including any or a combination of aluminium, iron, steel, wood, and fiberglass.
[00045] FIGs. 1A and 1B illustrate exemplary diagrams of the proposed adjustable ladder to illustrate its overall working in accordance with an embodiment of the present disclosure.
[00046] In an embodiment, FIG. 1A illustrates a block diagram of the proposed adjustable ladder 100 (interchangeably referred to as adjustable ladder 100, or ladder 100, hereinafter). In another embodiment, FIG. 1B illustrates a structural diagram of the adjustable ladder 100. As illustrated, in an embodiment, the adjustable ladder 100 can include members 102-1, 102-2, 102-3, 102-4… 102-N, such that a combination of two or more elongated members can result in formation of one or more sets of elongated members (collectively referred to as sets of elongated members 102, and individually referred to as set of elongated members 102, hereinafter).
[00047] In an exemplary embodiment, each of the sets of elongated members 102 can include two parallel members separated by a first predefined distance. In another embodiment, each of the member can be configured with a plurality of holes 104-1, 104-2, 104-3… 104-N (collectively referred to as holes 104, and individually referred to as hole 104, hereinafter).
[00048] In an embodiment, the adjustable ladder 100 can include a plurality of rungs106-1, 106-2… 106-N(collectively referred to as rungs 106, and individually referred to as rung 106, hereinafter), such that the rungs 106 are coupled to the sets of elongated members 102. In another embodiment, each of the rungs 106 can include one or more extended portions 108-1, 108-2, 108-3… 108-N (collectively referred to as extended portions 108, and individually referred to as extended portion 108, hereinafter), such that each of the extended portions 108 can be removably fixed in at least one of the holes 104.
[00049] In an exemplary embodiment, a rung 106-1 can include two extended portions 108-1 and 108-2, where the extended portions 108-1 and 108-2 can be configured in dimensions proportional to that of holes 104 associated with the set of elongated members 102, such that the extended portions 108-1 and 108-2 can be removably fixed in the holes 104 associated with two parallel members combined together to form a set of elongated members 102.
[00050] In another exemplary embodiment, the rungs 106 can be configured in an orthogonal position with respect to the sets of the elongated members 102.
[00051] In an embodiment, each of the sets of elongated members 102 can be movably coupled to each other, such that the adjustable ladder 100 can be configured to move between a first position and a second position, such that the second position can be at a second pre-defined distance from the first position. In an exemplary embodiment, the second pre-defined distance can be 15 feet.
[00052] In an exemplary embodiment, the sets of elongated members 102 can include a first set of elongated members and a second set of elongated members, such that each set can be movably coupled to other. In another exemplary embodiment, the first position can correspond to a position where a bottom end of the second set of elongated members is adjacent to a bottom end of the first set of elongated members, and the second position can correspond to a position where the bottom end of the second set of elongated members is at the second predefined distance from bottom end of the first set of elongated members.
[00053] In yet another exemplary embodiment, the sets of elongated members 102and the rungs 106 can be made of a material including any or a combination of aluminium, iron, steel, wood, and fiber glass.
[00054] In an embodiment, the adjustable ladder 100 can include a set of sliding means 110-1, 110-2… 110-(N-1), 110-N (interchangeably referred to as set of sliding means 110, or sliding means 110, hereinafter), such that the set of sliding means 110can be configured between the sets of elongated members 102, and can be adapted to facilitate movement of the sets of elongated members 102 with respect to each other.
[00055] In an embodiment, the adjustable ladder 100 can include a switch 112 that can be operatively coupled to the sets of elongated members 102, where the switch 112 can be configured to enable movement of the sets of elongated members between the first position and the second position.
[00056] In an embodiment, the adjustable ladder 100 can include a control unit 114 that can operatively coupled to the switch 112 and at least one of the sets of elongated members 102. In an embodiment, the control unit 114 can be configured to generate a pre-determined mechanical force, based on actuation of the switch 112, where generation of the pre-determined mechanical force can facilitate movement of the sets of elongated members 102 between the first position and the second position. In an exemplary unit, the control unit 114 can include a hydraulic motor configured with a hydraulic cylinder. In another exemplary unit, the control unit 114 can be coupled with the switch 112 by a connecting means 116 that can include, but not limited to, wire, cable, metallic rod, and the like.
[00057] In an embodiment, the adjustable ladder 100 can include a diaphragm 120, such that the diaphragm 120 can be operatively coupled to the switch 112, the control unit 114, and the ladder 100. In an embodiment, the diaphragm 120 can be configured to control pressure associated with the control unit 114 and the switch 112 when weight on the ladder 100 exceeds a pre-defined safety limit. In an exemplary unit, thepre-defined safety limit of the ladder 100 can be 200 kilograms (kg).
[00058] In an embodiment, the adjustable ladder 100 can include protecting elements 118-1 and 118-2 (collectively referred to as protecting elements 118, and individually referred to as protecting element 118, hereinafter) that can be configured at a bottom end of each of the sets of elongated members 102 to avert slipping of the ladder 100. In an exemplary embodiment, the protecting element 118 can be selected from a non-slipping material including, but not limited to, rubber, foam, sponge, and cork.
[00059] While embodiments of the present invention have been illustrated and described, it will be clear that the invention is not limited to these embodiments only. Numerous modifications, changes, variations, substitutions, and equivalents will be apparent to those skilled in the art, without departing from the spirit and scope of the invention, as described in the claim.
[00060] In the foregoing description, numerous details are set forth. It will be apparent, however, to one of ordinary skill in the art having the benefit of this disclosure, that the present invention may be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form, rather than in detail, to avoid obscuring the present invention.
[00061] As used herein, and unless the context dictates otherwise, the term "coupled to" is intended to include both direct coupling (in which two elements that are coupled to each other contact each other) and indirect coupling (in which at least one additional element is located between the two elements). Therefore, the terms "coupled to" and "coupled with" are used synonymously. Within the context of this document terms "coupled to" and "coupled with" are also used euphemistically to mean “communicatively coupled with” over a network, where two or more devices are able to exchange data with each other over the network, possibly via one or more intermediary device.
[00062] It should be apparent to those skilled in the art that many more modifications besides those already described are possible without departing from the inventive concepts herein. The inventive subject matter, therefore, is not to be restricted except in the spirit of the appended claims. Moreover, in interpreting both the specification and the claims, all terms should be interpreted in the broadest possible manner consistent with the context. In particular, the terms “comprises” and “comprising” should be interpreted as referring to elements, components, or steps in a non-exclusive manner, indicating that the referenced elements, components, or steps may be present, or utilized, or combined with other elements, components, or steps that are not expressly referenced. Where the specification claims refers to at least one of something selected from the group consisting of A, B, C … N, the text should be interpreted as requiring only one element from the group, not A plus N, or B plus N, etc.
[00063] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE PRESENT DISCLOSURE
[00064] The present disclosure provides a ladder that can be adjusted between a first position and a second position.
[00065] The present disclosure provides a ladder including a switch, such that actuation of the switch can facilitate movement of the ladder.
[00066] The present disclosure provides a ladder that can stand firmly without any slippage.
[00067] The present disclosure providesa means to facilitate safe movement of the ladder when weight on the ladder exceeds a per-defined value.
[00068] The present disclosure provides a cost-effective, reliable, portable, efficient, and robust ladder.

Claims:1. An adjustable ladder comprising:
one or more sets of elongated members, wherein each of the sets of elongated members comprises two parallel members separated by a first predefined distance, and configured with a plurality of holes;
a plurality of rungs removably coupled to the one or more set of elongated members, wherein each of the plurality of rungs comprises one or more extended portions, such that each of the one or more extended portions is being removably fixed in at least one of the plurality of holes; and
wherein each of the one or more sets of elongated members are movably coupled to each other, and configured to move between a first position and a second position, such that the second position is at a second pre-defined distance from the first position.
2. The ladder as claimed in claim 1, wherein the ladder comprises a set of sliding means configured between the one or more sets of elongated members, and adapted to facilitate movement of the one or more sets of elongated members with respect to each other.
3. The ladder as claimed in claim 1, wherein the one or more sets of elongated members comprises a first set of elongated members and a second set of elongated members, each movably coupled to each other, and wherein the first position corresponds to a position where a bottom end of the second set of elongated members is adjacent to a bottom end of the first set of elongated members, and the second position corresponds to a position where the bottom end of the second set of elongated members is at the second predefined distance from bottom end of the first set of elongated members.
4. The ladder as claimed in claim 1, wherein the ladder comprises a switch operatively coupled to the one or more sets of elongated members, and configured to enable movement of the one or more sets of elongated members between the first position and the second position.
5. The ladder as claimed in claim 4, wherein the ladder comprises a control unit operatively coupled to the switch and at least one of the one or more sets of elongated members, and configured to generate a pre-determined mechanical force, based on actuation of the switch, to facilitate movement of the one or more sets of elongated members between the first position and the second position.
6. The ladder as claimed in claim 5, wherein the control unit comprises a hydraulic motor configured with a hydraulic cylinder.
7. The ladder as claimed in claim 5, wherein the ladder comprises a diaphragm operatively coupled to the switch, the control unit, and the ladder, and configured to control pressure associated with the control unit and the switch when weight on the ladder exceeds a pre-defined safety limit.
8. The ladder as claimed in claim 7, wherein the second pre-defined distance is 15 feet and the pre-defined safety limit of the ladder is 200 kilograms (kg).
9. The ladder as claimed in claim 1, wherein the ladder comprises a protecting element configured at a bottom end of each of the one or more sets of elongated members to avert slipping of the ladder, wherein the protecting element is selected from a non-slipping material comprising any or a combination of rubber, foam, sponge, and cork.
10. The ladder as claimed in claim 1, wherein the one or more sets of elongated members and the plurality of rungs are made of a material comprising any or a combination of aluminium, iron, steel, wood, and fiberglass.