Patent US4658178A successfully refreshed from Google Patents.
US4658178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastics skirt for rigidly interconnecting metallic base and glass envelope of a lamp
Assignee: General Electric Co
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Filing: 1984-12-14
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Granted: 1987-04-14
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Expires: 2004-12-14
Abstract
Abstract A lamp is disclosed comprising a light source, an outer glass envelope having at least one dimple, a metallic base having at least one dimple, and a plastics skirt having means for complementary engaging and fastening to each of the dimples of the glass envelope and of the metallic base. The complementary engagement of the plastics skirt to the glass envelope is accomplished by snap-lock ramp-like extensions that fit into and engage an inner portion of the dimples of the glass envelope.
Inventors
- 👤 Irving Bradley
- 👤 Paul A. Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:24
CPC Classifications
H; H01; H01K; H01K1/00; H01K1/42; H01K1/46; H01J; H01J5/00; H01J5/50; H01J5/54; H01J5/58; H01J5/60
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
102 words
A lamp comprising: (a) an outer envelope having at least one dimple at its lower rim position; (b) a light source disposed within said outer envelope; (c) a screw-type metallic base having at least one dimple at its upper portion; and (d) a plastics skirt having means of complementary engaging and fastening to said dimples of the glass envelope and metallic base, said complementary engaging and fastening of the plastics skirt to the glass envelope being accomplished by ramp-like extensions integrally formed into the plastics skirt and which fit into and engage an inner portion of the dimple of the glass envelope.
Claim 2
Dependent Claim
102 words
A lamp comprising: (a) an outer envelope having at least one dimple at its lower rim position; (b) a light source disposed within said outer envelope; (c) a screw-type metallic base having at least one dimple at its upper portion; and (d) a plastics skirt having means of complementary engaging and fastening to said dimples of the glass envelope and metallic base, said complementary engaging and fastening of the plastics skirt to the glass envelope being accomplished by ramp-like extensions integrally formed into the plastics skirt and which fit into and engage an inner portion of the dimple of the glass envelope.
Claim 3
Dependent Claim
16 words
A lamp according to claim 1 wherein said lamp is a Parabolic Aluminized Reflector (PAR) lamp.
Claim 4
Dependent Claim
19 words
A lamp according to claim 1 wherein each of said outer envelope and said metallic base have two dimples.
Claim 5
Dependent Claim
27 words
A lamp according to claim 1 wherein said plastics skirt is formed of plastics material selected from the group consisting of polyetherimide, polyethersulfone, poly (amide-imide) and polyimide.
Claim 6
Dependent Claim
21 words
A lamp according to claim 1 wherein said plastics skirt further comprises a plurality of slots which embrace the glass envelope.
Claim 7
Dependent Claim
39 words
A lamp according to claim 1 wherein said means of complementary engaging and fastening said metallic base to said plastics skirt comprises indents in the plastics skirt which engage an inner portion of the dimple of the metallic base.
Claim 8
Dependent Claim
35 words
A lamp according to claim 1 wherein said plastics skirt has an opening to allow the exiting of a lamp lead of said lamp for attachment to the outer portion of the screw-type metallic base.
Claim 9
Dependent Claim
34 words
A lamp according to claim 1 wherein said plastics skirt has a shank portion having a conical shape and fits closely into the interior of the screw-type metallic base having a cone dome shape.
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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |