US3585555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adapters for electrical wall receptacles
Assignee: Individual
•
Filing: 1970-03-16
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Granted: 1971-06-15
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Expires: 1990-03-16
Abstract
Abstract A protective electrical arrangement for use in conjunction with a wall receptacle or similar outlets of the female type commonly employed in homes and buildings. The protective device is integral with the outlet circuitry and consists of a plurality of circuit breakers, wherein one of the breakers is adapted to open the circuit or connected line before any other protective device operates.
Inventors
- 👤 Kingo Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:12
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/70; H01R13/713
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
141 words
An attachable platelike container for combination with an electrical outlet receptacle, prongs extending from one side of the container arranged to be inserted into contact openings of an electrical receptacle, an opposite side of the container having at least one female outlet adapted to receive a portable electrical attachment plug, a pair of circuit breakers fixed to the container and arranged in series connection, one of the breakers designed to open earlier than the other breaker, one end of the series connection having a conductor leading to one of said prongs and the other end of the series connection having a conductor leading to one electrical side of said female outlet, and a conductor connecting the other of said prongs to the other side of said female outlet and thus provide the female outlet with a plurality of protective circuit breakers.
Claim 2
Dependent Claim
141 words
An attachable platelike container for combination with an electrical outlet receptacle, prongs extending from one side of the container arranged to be inserted into contact openings of an electrical receptacle, an opposite side of the container having at least one female outlet adapted to receive a portable electrical attachment plug, a pair of circuit breakers fixed to the container and arranged in series connection, one of the breakers designed to open earlier than the other breaker, one end of the series connection having a conductor leading to one of said prongs and the other end of the series connection having a conductor leading to one electrical side of said female outlet, and a conductor connecting the other of said prongs to the other side of said female outlet and thus provide the female outlet with a plurality of protective circuit breakers.
Claim 3
Dependent Claim
14 words
The container recited in claim 1 wherein one of the breakers is a fuse.
Claim 4
Dependent Claim
35 words
The container recited in claim 1 wherein one of the breakers is a fuse and the other breaker is an electromechanical breaker which has a reset rod that extends through a wall of the container.
Claim 5
Dependent Claim
58 words
The container recited in claim 1 wherein one of the breakers is a fuse and the other breaker is an electromechanical breaker, a low current lamp arranged so that its glow can be seen from without the container, said lamp having a pair of leads which shunt about the fuse and is illuminated when the fuse is broken.
Claim 6
Dependent Claim
27 words
The container recited in claim 1 wherein one of the breakers is a fuse, and means allowing the fuse to be replaced from outside of the container.
Claim 7
Dependent Claim
39 words
The container recited in claim 1 wherein the front face of the container has a plurality of female outlets and wherein some of the outlets have connection directly across said prongs whereas other outlets have double breakers as aforesaid.
Claim 8
Dependent Claim
42 words
The container recited in claim 1 wherein one of the breakers is a fuse and the other breaker is an electromechanical breaker, and wherein the fuse is set and designed to open the circuit at a higher current than the electromechanical breaker.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |