FORM 2
THE PATENTS ACT, 1970
(39 of 1970) As amended by the Patents (Amendment) Act, 2005
& The Patents Rules, 2003 As amended by the Patents (Amendment) Rules, 2006
COMPLETE SPECIFICATION (See section 10 and rule 13)
TITLE OF THE INVENTION
A device for removing crimping projections from a decrimped object
APPLICANTS
Crompton Greaves Limited. CG House, Dr Annie Besant Road. Worli, Mumbai 400 030, Maharashtra, India, an Indian Company
INVENTOR
Gupta Tribhuwan Kumar of Crompton Greaves Ltd, L2 Lightning Division, Vadodra- 391 430, Gujarat. India, an Indian National
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed:

FIELD OF THE INVENTION
This invention relates to a device for removing crimping projections from a decrimped object. BACKGROUND OF THE INVENTION
The base or housing of a lamp is crimped into an aluminium cap which is plugged into an electrical socket. At the manufacturing facility of the lamps, if the lamp is tested to be faulty, it is discarded. Practically, each day quite a significant number of lamps are tested faulty which are discarded off. There is a possibility to reuse the aluminium cap from such discarded faulty lamps as the cap can be decrimped off the lamp easily. However, after such decrimping. crimping projections on the inner surface of the cap remain. Until such crimping projections are removed off the inner surface of the cap and the inner surface be made smooth, the decrimped cap cannot be reused. DETAILED DESCRIPTION OF THE INVENTION
According to the invention there is provided a device for removing crimping projections from a decrimped object, the device comprising a rotating die corresponding to the shape and size of the decrimped object which being placed on the rotating die such that the crimping projections thereof remaining in contact with the die and a bearing mounted on a movable support assembly for selectively moving the bearing towards the rotating decrimped object placed on the rotating die for making a contact of an outer movable race of the bearing and the rotating decrimped object wherein upon said contact pressure being applied on the crimping projections against the rotating die for flattening thereof

These and other aspects, features and advantages of the invention will be better understood with reference to the following detailed description, accompanying drawings and appended claims, in which,
Fig 1 is an isometric view of a decrimped cap of a lamp with crimping projections therein.
Fig 2a is a front view of a device for removing crimping projections from a decrimped cap of a lamp.
Fig 2b is an top view of a device for removing crimping projections from a decrimped cap of a lamp.
Fig 1 is an isometric view of a decrimped aluminium cap 1 of a lamp with crimping projections on the inner surface thereof. The base or housing of the lamp is inserted into the aluminium cap and crimped by a crimping device at the manufacturing facility of the lamp. If the lamp is tested faulty, it is discarded. However, for the purpose of reusing the cap it is first decrimped from the lamp by means of a decrimping tool. Thereafter, the crimping projections from the inner surface 2 of the decrimped cap 1 are removed by means of a device as shown in Fig 2a-2b. The device comprises of a rotating die 3 corresponding to the shape and size of the decrimped aluminium cap 2. To rotate the die. it is mounted/threaded on one end of a drive shaft 4 projecting from beneath a working table 5 through a hole (not shown) at the center of the working table 5. The remaining portion of the drive shaft 4 remains disposed beneath the working table 5. According to a preferred embodiment, the shaft 4 is driven through a v-belt 6 connected to the motor 7 and the shaft 4. However, there may be other means to drive the shaft 4. The portion of the shaft 4 below the working table passes through a pair of bearings 8 & 9 in a spaced apart relationship for supporting and providing stability to the shaft 4 during the rotation

thereof. The device further comprises of a bearing 10 mounted on a movable support assembly. The outer race 11 of the bearing 10 is provided free. According to a preferred embodiment., the movable support assembly comprises of a handle 12 hinged on the working table 5 such that the handle 12 can be moved/swept across the working table 5. An upstanding support rod 13 is provided on the middle of the handle 12 on which the bearing 10 is mounted. To remove the crimping projections from the decrimped cap 1: it is first placed over the die 3 such that the die 3 is received within the hollow portion of the decrimped cap 1 and the crimping projections on the inner surface 2 of the decrimped cap 1 remain in contact with the die 3. The motor 7 is now powered to rotate/drive the shaft 4 thereby rotating the die 3 and the decrimped cap 2 placed on it. Thereafter, the handle 12 is moved towards the rotating decrimped cap such that the outer race 11 of the bearing 10 mounted on the support rod 13 is brought in a slight contact with the outer surface of the rotating decripmed cap for a few seconds. At the time of said contact, the outer race 11 of the bearing 10 rotates as well. Consequent to the contact between the outer race 11 of the bearing 10 and the outer surface of the decrimped cap 1, a light uniform pressure is applied on the decrimped cap 1 by the bearing 10 and the crimping projections on the inner surface of the decrimped cap 1 are flattened. According to a preferred embodiment, a metal finger-like stopper 14 is mounted rotatably on the top free end of the support rod 13 such that during the said contact of the outer race 11 of the bearing 10 the outer surface of the decrimped cap 1, the finger-like stopper 14 remains disposed above the decrimped cap 1 so as to prevent the decrimped cap 1 from flying off the die 3 during the said contact.
According to the invention, the device as described above removes crimping projections from a decrimped object such as a cap of lamp mount easily and quickly

thereby rendering the decrimped cap of a faulty and discarded lamp reusable. Such is highly economical since a lot of lamps are tested to be faulty during each day at the manufacturing facilities of the lamp.
Although the invention has been described with reference to a specific embodiment, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiment, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. It is therefore contemplated that such modifications can be made without departing from the scope of the invention as defined in the appended claims.

We claim:
1. A device for removing crimping projections from a decrimped object, the device comprising:
a. a rotating die corresponding to the shape and size of the decrimped
object which being placed on the rotating die such that the crimping
projections thereof remaining in contact with the die;
b. a bearing mounted on a movable support assembly for selectively
moving the bearing towards the rotating decrimped object placed on
the rotating die for making a contact of an outer movable race of the
bearing and the rotating decrimped object wherein upon said contact
pressure being applied on the crimping projections against the rotating
die for flattening thereof.
2. The device as claimed in claim 1, wherein the rotating die is mounted on one end of a drive shaft projecting from beneath a work table through a hole at the center of the work table, the remaining part of the drive shaft remaining disposed beneath the work table, the drive shaft being driven by a motor through a v-belt provided beneath the work table.
3. The device as claimed in claim 1, wherein the decrimped object is a decrimped cap of a lamp wherein crimping projections projecting from on an inner surface of the decrimped cap which being placed on the rotating die such that the die is received within the hollow portion of the decrimped cap and the crimping projections remaining in the contact with the die.
4. The device as claimed in claim 3, wherein the movable outer race of the bearing is selectively brought in contact with the outer surface of the decrimped cap,

5. The device as claimed in claim 1, wherein the movable support assembly comprises of a support rod, one end of which is mounted at the center of a movable handle hinged on a work table and a metal finger like stopper mounted on the other free end thereof such that when the outer race of the bearing is brought in contact with the outer surface of the deerimped object, the metal finger like stopper remaining disposed above the rotating deerimped object for preventing the deerimped object from flying off the rotating die.
6. The device as claimed in claim 2, wherein the drive shaft beneath the work table extends through a pair of support bearings in a spaced apart relationship with each other for providing support and stability to the rotating drive shaft.