US4907477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing base of broken lamp from a socket
Assignee: Individual
•
Filing: 1988-08-01
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Granted: 1990-03-13
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Expires: 2008-08-01
Abstract
Abstract An apparatus and method are provided for removing a lamp base from the socket into which it has been installed, after its bulb has been broken.
Inventors
- 👤 Melvin A. Farber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:01
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/18; B25B7/00; B25B7/02; H; H01; H01J; H01J9/00; H01J9/003; Y; Y10; Y10S; Y10S81/00; Y10S81/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
147 words
In a lamp having a bulb and a lamp base that is insertable into a socket, an apparatus for removing the lamp base from the socket after its bulb has been broken, comprising: (a) a plurality of jaws adapted to engage the inside surface of the lamp base; (b) means including handles coupled to the jaws for moving the jaws relative to each other; and, (c) spring means operatively coupled to the handles for urging the handles together and the jaws apart; whereby the jaws are insertable into the lamp base after application of an expansive force to the moving means to move the jaws together, the spring means urges the jaws apart to engage the inner surface of the lamp base when the expansive force is removed, and thereafter the lamp base is removable from the socket by application of a rotative force to the handles.
Claim 2
Dependent Claim
147 words
In a lamp having a bulb and a lamp base that is insertable into a socket, an apparatus for removing the lamp base from the socket after its bulb has been broken, comprising: (a) a plurality of jaws adapted to engage the inside surface of the lamp base; (b) means including handles coupled to the jaws for moving the jaws relative to each other; and, (c) spring means operatively coupled to the handles for urging the handles together and the jaws apart; whereby the jaws are insertable into the lamp base after application of an expansive force to the moving means to move the jaws together, the spring means urges the jaws apart to engage the inner surface of the lamp base when the expansive force is removed, and thereafter the lamp base is removable from the socket by application of a rotative force to the handles.
Claim 3
Dependent Claim
14 words
Apparatus according to claim 1 wherein the spring means comprises a helical extension spring.
Claim 4
Dependent Claim
46 words
Apparatus according to claim 2 wherein: (a) each end of the spring comprises a straight section which terminates in a hook; (b) a hole is provided in each handle; and, (c) the spring is affixed to the handle by inserting each hook end into a hole.
Claim 5
Dependent Claim
28 words
Apparatus according to claim 1 further comprising means for increasing the frictional resistance between the jaws and the lamp base inner surface when the jaws are engaged therein.
Claim 6
Dependent Claim
29 words
Apparatus according to claim 4 wherein the jaws have outwardly facing edges and the means for increasing frictional resistance comprises serrations in the outwardly facing edges of the jaws.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-03-12 | 1993-09-11 | 1994-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-12 | 1997-09-11 | 1998-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-12 | 2001-09-11 | 2002-03-13 | $7700.00 | Window Closed / Lapsed |