Patent EP0609182A1 successfully refreshed from Google Patents.
US3609638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extension cord coupling clamp assembly
Assignee: Individual
•
Filing: 1970-06-03
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Granted: 1971-09-28
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Expires: 1990-06-03
Abstract
Abstract An extension cord clamp assembly for detachably securing the ends of extension cords or cables together to prevent accidental disconnection of the plug and socket. The clamp assembly has a pair of spring-loaded, butterfly-type clamps which clamp on the cord ends, the clamps being mounted on a threaded, roughened or serrated rod to thereby hold them against relative displacement. The spring urges the clamps into tight and secure engagement with the rod, but permits ready adjustment along the rod when the butterfly wings of the clamps are squeezed together to release the jaws of the clamps.
Inventors
- 👤 John J Darrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:57
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/62; H01R13/639; H01R13/6392; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3427; Y10T24/3428; Y10T24/3431; Y10T24/3433; Y10T24/3435; Y10T24/3439; Y10T24/344; Y10T24/3444; Y10T403/00; Y10T403/50; Y10T403/57; Y10T403/5761
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
84 words
A clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface, a pair of spring biased gripping clamps mounted intermediate their length on said rod, one clamp for engaging each of said cords, and spring means acting on said clamps to urge them into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said clamps defining gripping jaw means for gripping said cords.
Claim 2
Dependent Claim
84 words
A clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface, a pair of spring biased gripping clamps mounted intermediate their length on said rod, one clamp for engaging each of said cords, and spring means acting on said clamps to urge them into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said clamps defining gripping jaw means for gripping said cords.
Claim 3
Dependent Claim
34 words
The assembly set forth in claim 1 further characterized in that the other end of said clamps constitute actuating portions which can be pressed together against the bias of the spring means located therebetween.
Claim 4
Dependent Claim
35 words
The assembly defined in claim 1 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said clamps.
Claim 5
Dependent Claim
35 words
The assembly defined in claim 2 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said clamps.
Claim 6
Dependent Claim
114 words
An extension cord clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface along its length; a pair of spring biased clamps, one clamp for engaging each of said cords, said clamps each having a pair of complementary and cooperating members, said members having aligned holes intermediate their length, said rod extending through said holes, and spring means acting between the members of each pair of clamps and acting to urge said members into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said members defining gripping jaw means for gripping said cords.
Claim 7
Dependent Claim
114 words
An extension cord clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface along its length; a pair of spring biased clamps, one clamp for engaging each of said cords, said clamps each having a pair of complementary and cooperating members, said members having aligned holes intermediate their length, said rod extending through said holes, and spring means acting between the members of each pair of clamps and acting to urge said members into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said members defining gripping jaw means for gripping said cords.
Claim 8
Dependent Claim
34 words
The assembly set forth in claim 5 further characterized in that the other end of said members constitutes actuating portions which can be pressed together against the bias of the spring means located therebetween.
Claim 9
Dependent Claim
36 words
The assembly defined in claim 6 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said cooperating members.
Claim 10
Dependent Claim
36 words
The assembly defined in claim 7 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said cooperating members.
Claim 11
Dependent Claim
138 words
An extension cord clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface along its length; a pair of spring biased clamps, one clamp for engaging each of said cords, said clamps each having a pair of complementary and cooperating members, said members having inwardly turned flanges intermediate the length of said members, the flanges of one member overlapping the flanges of the other member of the same clamp, said flanges having aligned holes through which said rod extends, and spring means acting between the members of each pair of clamps and acting to urge said flanges into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said members defining gripping jaw means for gripping said cords.
Claim 12
Dependent Claim
138 words
An extension cord clamp assembly for detachably holding a pair of cords together and comprising, a rod having an irregular surface along its length; a pair of spring biased clamps, one clamp for engaging each of said cords, said clamps each having a pair of complementary and cooperating members, said members having inwardly turned flanges intermediate the length of said members, the flanges of one member overlapping the flanges of the other member of the same clamp, said flanges having aligned holes through which said rod extends, and spring means acting between the members of each pair of clamps and acting to urge said flanges into binding engagement with the irregular surface of said rod to prevent accidental movement of said clamps along said rod, one end of said members defining gripping jaw means for gripping said cords.
Claim 13
Dependent Claim
34 words
The assembly set forth in claim 9 further characterized in that the other end of said members constitutes actuating portions which can be pressed together against the bias of the spring means located therebetween.
Claim 14
Dependent Claim
36 words
The assembly defined in claim 10 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said cooperating members.
Claim 15
Dependent Claim
36 words
The assembly defined in claim 11 further characterized in that said spring means is a coiled spring through which said rod extends, said spring means having a pair of free ends bearing against said cooperating members.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |