US4407560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical adapter
Assignee: Individual
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Filing: 1981-06-25
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Granted: 1983-10-04
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Expires: 2001-06-25
Abstract
Abstract An electrical adapter is described particularly useful for converting a 250 watt halogen lamp socket having a width of 7/16" to a 75 watt episical reflector lamp or flood socket having a diameter of 1". The adapter comprises a top and bottom hollow ceramic section. The top section consists of a hollow base member adhesively mated to a top member. The top member has mounted thereon a male screw shell and a center contact. The bottom ceramic section contains an internally threaded female screw shell and a bottom central contact. A connecting member is bonded to the hollow base member of the top section and is equipped with a central internally threaded collar to which is threaded a tubular neck. The bottom section is screwed to the connecting member. Wires connect the top and bottom center contacts and the male and female screw shells.
Inventors
- 👤 Michael Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:52
CPC Classifications
H; H01; H01R; H01R33/00; H01R33/94
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
124 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive (b) a male threaded screw shell and a central contact mounted on said top member; and (c) a bottom ceramic section connected with said base member having mounted thereon an internally threaded female screw shell and a central contact, said central contact mounted on said top member and said central contact mounted on said bottom ceramic section being electrically connected and said male threaded screw shell and said female threaded screw shell being electrically connected.
Claim 2
Dependent Claim
124 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive (b) a male threaded screw shell and a central contact mounted on said top member; and (c) a bottom ceramic section connected with said base member having mounted thereon an internally threaded female screw shell and a central contact, said central contact mounted on said top member and said central contact mounted on said bottom ceramic section being electrically connected and said male threaded screw shell and said female threaded screw shell being electrically connected.
Claim 3
Dependent Claim
28 words
The adapter of claim 1 wherein said adapter further comprises: a connecting member bonded to said hollow ceramic base, said connecting member having a central internally threaded collar.
Claim 4
Dependent Claim
14 words
The adapter of claim 2 wherein a neck is threadably engaged with said collar.
Claim 5
Dependent Claim
24 words
The adapter of claim 1 which further comprises a spacer comprised of insulating material between said hollow ceramic base and said bottom ceramic section.
Claim 6
Dependent Claim
179 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive; (b) a male theaded screw shell and a top central contact mounted on said top member; (c) a connecting member bonded to said hollow ceramic base member having a central internally threaded collar; (d) a tubular neck threadably engaging said threaded collar; (e) a bottom ceramic section connected to said connecting member having mounted thereon an internally threaded female screw shell and a bottom central contact; and (f) a pair of wires, one being connected at one end to said top central contact, passing through said tubular neck and central collar and connected at its other end to said bottom central contact and the other of said wires being connected at one end to said male threaded screw shell and at the other end with said female threaded screw shell.
Claim 7
Dependent Claim
179 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive; (b) a male theaded screw shell and a top central contact mounted on said top member; (c) a connecting member bonded to said hollow ceramic base member having a central internally threaded collar; (d) a tubular neck threadably engaging said threaded collar; (e) a bottom ceramic section connected to said connecting member having mounted thereon an internally threaded female screw shell and a bottom central contact; and (f) a pair of wires, one being connected at one end to said top central contact, passing through said tubular neck and central collar and connected at its other end to said bottom central contact and the other of said wires being connected at one end to said male threaded screw shell and at the other end with said female threaded screw shell.
Claim 8
Dependent Claim
24 words
The adapter of claim 5 which further comprises a spacer comprised of insulating material between said hollow ceramic base and said bottom ceramic section.
Claim 9
Dependent Claim
15 words
The adapter of claim 5 wherein said male threaded screw shell is 7/16" in diameter.
Claim 10
Dependent Claim
15 words
The adapter of claim 5 wherein said female threaded screw shell is 1" in diameter.
Claim 11
Dependent Claim
202 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive; (b) a male threaded screw shell having a diameter of 7/16" and a top central contact mounted on said top member; (c) a connecting member bonded to said hollow ceramic base member having a central internally threaded collar; (d) a tubular neck threadably engaging said threaded collar; (e) a spacer comprised of insulating material located beneath said connecting member; (f) a bottom ceramic section connected to said connecting member having mounted thereon an internally threaded female screw shell having an inner diameter of 1" and a bottom central contact; and (g) a pair of wires, one being connected at one end to said top central contact, passing through said tubular neck and central collar and connected at its other end to said bottom central contact and the other of said wires being connected at one end to said male threaded screw shell and at the other end with said female threaded screw shell.
Claim 12
Dependent Claim
202 words
An adapter comprising: (a) a top section comprised of a hollow ceramic base member having upwardly extending protrusions and a hollow ceramic top member having notched portions corresponding to said protrusions, said upwardly extending protrusions engaging said notched portions to form joints, said joints being secured by an adhesive; (b) a male threaded screw shell having a diameter of 7/16" and a top central contact mounted on said top member; (c) a connecting member bonded to said hollow ceramic base member having a central internally threaded collar; (d) a tubular neck threadably engaging said threaded collar; (e) a spacer comprised of insulating material located beneath said connecting member; (f) a bottom ceramic section connected to said connecting member having mounted thereon an internally threaded female screw shell having an inner diameter of 1" and a bottom central contact; and (g) a pair of wires, one being connected at one end to said top central contact, passing through said tubular neck and central collar and connected at its other end to said bottom central contact and the other of said wires being connected at one end to said male threaded screw shell and at the other end with said female threaded screw shell.
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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |