DESC:FIELD OF INVENTION
The present invention relates to a removable handle used with typical cookwares.
PRIOR ART
There are many detachable handles known in prior art. Some of them are :
1. 2494159
2. WO 2014165717 A1
3. 3168430169517
4. EP 2484256 A1
5. US 6257439 B1
Typically such as WO 2011122863 A2 uses cam principle for designing a detachable handle for a cooking vessel. In another patent US 7028374 B2, it teaches use of mechanical principle utilizing eccentric system for attaching and detaching removal handles more specifically to the edges of pots and pans or to their gudgeon thereby using gudgeon intelligently which gudgeon is already present on the pan. Hence the system was found to be safer and simpler than prior art.
US 6257439 B1 reveals a handle which is separate from the food container, which includes clamping member and actuator and using the same for securely clamping the lip of the food container between two different clamping portions, a first clamping portion formed on handle main body and second clamping portion formed on the clamping members. The engagement is through a set of engaging holes and corresponding engaging pieces adapted to engage with the engaging holes.
There are many other prior art in this field such as :
1. US 3474486
2. US 8998887 B2
3. US 8967676 B1
4. US 8764762 B2
5. US8783705 B2
6. US 8833820 B1
7. US 8919603 B2
8. US 8955197 B2
9. US 2008/0110910 A1
10. Lifetime cookware’s Detachable handle system
11. TEFAL INGENIO BAKELITE HANDLE
12. SKK PRODUCT REMOVABLE HANDLE WITH SLIDER
on all of which provide detachable handles on cookwares, but each suffer one or other deficiency.
OBJECT OF THE INVENTION
The main object of the invention is to provide a handle for a cookware, more specifically detachable handle for a cookware, that overcomes many of the sufferings visible in prior art.
The second object of the invention to create a detachable handle with interchangeability of same handle usable with multiple pans. A removable handle which essentially improves the detachability and reattachability factor in terms of convenience and ease of operation but simultaneously and significantly improves the latching and locking mechanism associated with such typical repeated detachment / attachment activity mindlessly and irresponsibly acted on by the consumer.
The third object of the invention is not only to ensure that the detachment / attachment process is simple and capable of being performed by unskilled persons, but ensure the functionality with point of view of safety is taken care of.
The fourth object of the invention is to clearly address the design featured with stable connection i.e. stable attachment / detachment.
The fifth object is to integrate alignment mechanism, latching mechanism and locking mechanism for designing the detachable handle of the cookware.
DESCRIPTION OF DRAWINGS
PART NUMBER PART NAME
1 VESSEL
2 BODY ATTACHMENT
3 BODY HANDLE WITH PRESS FIT PINS LOCKING THE SWITCH
4 BRACKET
5 SCREW
6 LOCKING SWITCH
7 INTERNAL THREAD
8 EXTERNAL THREAD
9 INTERNAL SERRATION
10 EXTERNAL SERRATION
A 1ST DEGREE OF LOCK IN THE FORM OF INNER THREAD
B 2ND DEGREE OF LOCK IN THE FORM OF CYLINDICAL FIXING
C 3RD DEGREE OF LOCK IN THE FORM OF OUTER THREAD
D 4TH DEGREE OF LOCK IN THE FORM OF LINEAR SWITCH

FIG 1 illustrates the detachable handle of cookware and its parts
FIG 1a illustrates the front locking portion of handle attachment located on vessel
FIG 1b illustrates the front locking portion of detached handle locking position
FIG 2 illustrates the locking positions of handle bar

DESCRIPTION OF INVENTION
The invention relates to providing a detachable handle, i.e. a handle that is separate from the cookware which may be attached to the cookware for reliably / stably lifting / handling the cookware when the need arises by the user. The said handle can be attached to different sizes of a range of cookwares, thereby decreasing the cost and better convenience to the consumer. The consumer is at liberty to purchase multiple cookwares with a single or atleast lesser set of detachable handles than number of cookwares purchase.
The design as per invention provides a detachable handle for cookware which is managed by positive control, and therefore extremely reliable and safe for the user and which handle cannot be attached / detached inadvertently.
There is a need for sequence of steps for attachment / detachment such as alignment, twist and lock / release steps which ensure safe operation of attachment / detachment of handle with respect to cookware. Further the mechanisms are simple in construction and in operation thereby offering the act of detachment / attachment effected easily, rapidly and with certainty thereby achieving an efficient use under normal conditions exposed to user during usage.
The construction cost is also low due to relative simple constructive elements and thereby avoiding any high production cost though achieving most of the objects of the invention. The three step arrangement of attachment of handle with three mechanical means ensure minimizing play, thereby eliminating the suffering of mechanical play which is obvious to users of prior art products thereby consumers feeling insecure in the usage of prior art products.
Therefore the invention attempts to overcome the many conventional deficiencies of prior art and additionally providing further new benefits to the users.
The prior art product and as per invention is illustrated in fig. 1 & Fig. 2 respectively.
The numerous types in prior known detachable handles for cookware and pressure cooker, considerable mechanical complexity is required within the handle device.
The detachable handle and cookware consists of the following parts in figure 1 for easy understanding :
1. Vessel
2.Body attachment,
3. Body handle with press fit pins locking the switch ,
4. Bracket,
5. Screw,
6. Locking switch
In the present invention, the first object is achieved by providing a detachable cookware handle comprising an body handle which when fitted to cookware can be locked and un locked when the cookware is hot or cold stage, and to reduce the storage space in kitchen and transportation alongwith many other objects detailed herein.
THE WORKING PRINCIPLE OF THE SYSTEM IS :-
It has a Four Level of locking system which makes the system as per invention distinct and different from all the other detachable handles known in prior art.
The stage wise principle is explained below :
1. Bracket is reverted to Body
2. The body attachment is screwed to the bracket
3. Body handle with press fit pins locking the switch has been inserted to reverse 90 Level of the face and rotated anti clockwise rotation and locked
The figure 2 shows the locking positions in the system as per invention.
1. The first Level of locking shows the body handle inside thread is engaged to the body attachment outer thread engagement. (Marked A – 1st degree of lock in the form of inner thread.)
2. The second Level of locking shows the body handle cylindrical engagement with the body attachment cylindrical engagement. (Marked B – 2nd degree of lock in the form of cylindrical fixing)
3. The third Level of locking shows the body handle outer side thread is engaged to the body attachment outer thread engagement . (Marked C – 3rd degree of lock in the form of outer thread)
4. The fourth Level of the locking shows the body handle locking switch is engaged to the body attachment to prevent the clockwise rotation. (Marked D – 4th degree of lock in the form of linear switch)
MERITS OF THE CURRENT DETACHABLE HANDLE AS PER INVENTION OVER OTHER HANDLES KNOWN IN PRIOR ART :
1. No metal parts is present.
2. No spring mechanism.
3. No rusting and extended life.
4. Simple mechanism.
5. Half rotation lock.
6. No corrosion due to no metallic parts.
7. Rigid and strong handles.
This detachable handle as per invention has a three way locking mechanism, as detailed above, one by way of a internal coupler, the other way by groves cut in and finally by a horizontal sliding plastic piece located on the handle near the locking end, which locks the handle to the cookware.

Positioning the handle in an inverted fashion against the handle postion in the Cookware, with the sliding piece postioned back and rotating the handle anticlock wise and then moving the sliding platic piece towards the cookware would lock the handle to the cookware.

Similarly sliding back the plastic piece and rotating the handle clock wise will result in the handle getting disconnected from the cookware.

The cookware and handle in general is described herein.
A cookware comprising a body, a handle projecting laterally from said body when mounted on said body, and said handle being a separable component and not a part of said body, wherein said handle is fastened in a detachable manner to said body. The design is as follows :-
a. A recess created on the cookware body for accommodating portion of the handle.
b. A coupling means including a pair of couplers which is a first coupler formed within said recess of the body including a wedge/thread portion and second coupler formed on the handle which second coupler wedges/threads into first coupler to secure the handle in position for engagement of the handle with body. This is generally referred as first level of locking in the description.
c. A threaded fastening means including a hollow threaded first fastening means found in detachable body engageable with another hollow oppositely threaded second fastening means formed within the said recess of the body wherein the threads on one fastening means engage with threads on the other fastening means when rotated with respect to each other. The threads that are formed such that the handle has to be positioned at a particular position prior to initiating the rotating action of the handle with respect to the cookware. This is generally referred to as second and the third level of locking as two sets of threads are involved in placement and rotary motion.
d. A sliding plate is provided on first fastening means of the handle and is arranged such that in a state in which said handle is connected to said body, the said sliding plate engages in a corresponding groove that is arranged within the said recess found in the body.
e. A latch means operably associated with the sliding plate moves the plate between an extended state for engaging with the said groove and a retracted state for disengaging the sliding plate from the said groove.
f. A switch lock means to limit restrain the motion of latch means is used. The combination of sliding plate, the latch means and the switch lock means shall be combinedly referred as fourth level of locking in the specification.
The description have been provided with certain embodiments and illustrations. The cookware generally as per invention, is comprising of a body.
However it is not intended that the described illustrations and embodiments or the terminology employed in describing the invention be limited in as much as variations in these may be made by skilled persons in the art without departing from the spirit of the claim.
All the obvious variations and modifications are well within the scope of the invention.
,CLAIMS:1. A cookware comprising a body, a handle projecting laterally from said body when mounted on said body, and said handle being a separable component and not a part of said body, wherein said handle is fastened in a detachable manner to said body, the said arrangement of the cookware and the handle comprises :
a. a recess created on the cookware body for accommodating a portion of the said handle,
b. a coupling means including a pair of couplers which is a first coupler formed within said recess of the body including a wedge/thread portion and second coupler formed on the handle which second coupler wedges/threads into first coupler to secure the handle in position for engagement of the handle with body, the said arrangement forming a first level of locking of the handle to the cookware body,
c. a threaded fastening means including a hollow threaded first fastening means formed in the detachable handle engageable with another hollow oppositely threaded second fastening means formed within the said recess of the body wherein the threads on one fastening means engage with threads on the other fastening means when rotated with respect to each other, and the threads that are formed are such that the handle has to be positioned at a particular position prior to initiating the rotating action of the handle with respect to the cookware, the said arrangement forming a second and the third level of locking of the handle to the cookware as two sets of threads are involved in placement and rotary motion,
d. a sliding plate is provided on first fastening means of the handle and is arranged such that in a state in which said handle is connected to said body, the said sliding plate engages in a corresponding groove that is arranged within the said recess found in the body,
e. a latch means operably associated with the sliding plate moves the plate between an extended state for engaging with the said groove and a retracted state for disengaging the sliding plate from the said groove, and
f. a switch lock means to limit restrain the motion of latch means is used, the said combination of arrangement of sliding plate, the latch means and the switch lock means combinedly form a fourth level of locking of the handle of the cookware.