US4222623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glow-lamp holder
Assignee: Individual
•
Filing: 1978-07-26
•
Granted: 1980-09-16
•
Expires: 1998-07-26
Abstract
Abstract This invention relates to a holder for a glow-lamp or a bulb and comprises internally in said holder a switch mechanism which on its side facing the bulb has contacts for providing electric contact with the contact surfaces of the lamp base, and which has terminals for the conductors connected to the holder, the electric connection between the terminals and the contacts being interruptable when removing the bulb from the holder.
Inventors
- 👤 Tore Hultberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:13
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/945; H01R33/96; H01R33/962
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
205 words
In a lamp holder containing an automatic switch mechanism having, on the face thereof facing the lamp, contacts for providing electrical contact with the contact surfaces of the base of the lamp and having terminals for connection to the conductors supplying current to the lamp, said switch mechanism operating automatically to interrupt the electrical connection between said terminals and said contacts in response to removal of said lamp from said holder and to close said electrical connection in response to insertion of said lamp into said lamp holder, the improvement wherein: said switch mechanism comprising a main portion which is stationarily mounted in said lamp holder and on which said terminals are mounted, and a contact supporting portion on which said contacts are mounted; said contact supporting portion being movable relative to said main portion between a working position in which electrical connection is made between said terminals and said contacts and an ineffective position in which said connection is interrupted; means holding said contact supporting portion in said ineffective position when said lamp is removed; and means secured to said contact supporting portion and responsive to insertion of said lamp into said lamp holder to move said contact supporting portion into said working position.
Claim 2
Dependent Claim
205 words
In a lamp holder containing an automatic switch mechanism having, on the face thereof facing the lamp, contacts for providing electrical contact with the contact surfaces of the base of the lamp and having terminals for connection to the conductors supplying current to the lamp, said switch mechanism operating automatically to interrupt the electrical connection between said terminals and said contacts in response to removal of said lamp from said holder and to close said electrical connection in response to insertion of said lamp into said lamp holder, the improvement wherein: said switch mechanism comprising a main portion which is stationarily mounted in said lamp holder and on which said terminals are mounted, and a contact supporting portion on which said contacts are mounted; said contact supporting portion being movable relative to said main portion between a working position in which electrical connection is made between said terminals and said contacts and an ineffective position in which said connection is interrupted; means holding said contact supporting portion in said ineffective position when said lamp is removed; and means secured to said contact supporting portion and responsive to insertion of said lamp into said lamp holder to move said contact supporting portion into said working position.
Claim 3
Dependent Claim
77 words
The lamp holder of claim 1, wherein said contact supporting portion and said main portion each comprise a pair of switching means at the mutually confronting surfaces thereof which are spaced apart from each other when said lamp is removed, and positioned so that each switching means of each of said pairs is moved into engagement with a corresponding one of the other of said pairs when said contact supporting portion is moved into said working position.
Claim 4
Dependent Claim
36 words
The lamp holder of claim 2, wherein said contacting portion is rotatable with respect to said main portion from said ineffective position to said working position in response to insertion of said lamp into said holder.
Claim 5
Dependent Claim
65 words
The lamp holder of claim 3, wherein said means for holding said contact supporting portion in said ineffective position comprises a return spring acting between said contact supporting portion and said main portion of said switch mechanism, and wherein said contacts are configured to transmit torque from the base of said lamp to said contact supporting portion when said lamp is screwed into said holder.
Claim 6
Dependent Claim
57 words
The lamp holder of claim 4, wherein said main portion and said contact supporting portion are both provided with wedge-shaped projections on their confronting surfaces, said projections being responsive to axial depression of said contact supporting section against said main portion by said lamp base to exert a torque on said contact supporting portion about said axis.
Claim 7
Dependent Claim
67 words
The lamp holder of claims 4 or 5, comprising a locking pin and a locking notch, one on said contact supporting portion and one on said main portion and positioned so that said pin is engagable in said notch when said contact supporting portion is in said ineffective position, said pin being removable from said notch in response to introduction of said lamp into said lamp holder.
References Cited (Backward Citations)
US3579171A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |