Patent US1579659A successfully refreshed from Google Patents.
Patent US3378104A successfully refreshed from Google Patents.
US4768979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical plug and socket having replaceable overcurrent protection device with safety latch means
Assignee: Individual
•
Filing: 1986-12-16
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Granted: 1988-09-06
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Expires: 2006-12-16
Abstract
Abstract An electrical plug which has removable inner components and which may have at its rear end a pair of plug slots which are adapted to receive the prongs of a second plug. Fuses and conductors are removable from and insertable into a channel formed within the housing through two different openings in the housing wall. The conductors and their terminals are part of a conductor assembly which includes a resilient lip for a snap fit into the plug housing. The fuses are connected to a securing body which fits tightly in the housing to provide a connection between the conductor terminals, the fuses, and the prongs.
Inventors
- 👤 Jeng-Shyong Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:08
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/68
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
194 words
An electrical plug comprising: an insulating housing defining a central channel, said housing having at least a first and second opening; first and second contact prongs, each of said contact prongs extending into said insulating housing and, a portion of each of said contact prongs communicating with said channel; a conductor assembly including a conductor body having a resilient lip portion, a first and second conductor mounted to the conductor body, and a first and second conductor terminal, said conductor assembly positionable within one of the openings in said housing, said resilient lip engaging a portion of said housing so as to retain the conductor assembly within said housing, subsequent removal of said conductor assembly not requiring removal of said prongs therewith; and, a securing body insertable within said housing through the other of the openings through said housing, said securing body carrying a pair of fuse elements, the securing body being disposed within said housing so as to position one fuse element in electrical connection with a first prong and the first conductor terminal and to position a second fuse member in electrical connection with the second prong and the second conductor terminal.
Claim 2
Dependent Claim
194 words
An electrical plug comprising: an insulating housing defining a central channel, said housing having at least a first and second opening; first and second contact prongs, each of said contact prongs extending into said insulating housing and, a portion of each of said contact prongs communicating with said channel; a conductor assembly including a conductor body having a resilient lip portion, a first and second conductor mounted to the conductor body, and a first and second conductor terminal, said conductor assembly positionable within one of the openings in said housing, said resilient lip engaging a portion of said housing so as to retain the conductor assembly within said housing, subsequent removal of said conductor assembly not requiring removal of said prongs therewith; and, a securing body insertable within said housing through the other of the openings through said housing, said securing body carrying a pair of fuse elements, the securing body being disposed within said housing so as to position one fuse element in electrical connection with a first prong and the first conductor terminal and to position a second fuse member in electrical connection with the second prong and the second conductor terminal.
Claim 3
Dependent Claim
29 words
A plug according to claim 1, wherein said openings are in the front end, the rear end, the top side wall, or the bottom side wall of the housing.
Claim 4
Dependent Claim
23 words
A plug according to claim 1, wherein said conductor assembly is admitted into the housing through an opening in the rear end thereof.
Claim 5
Dependent Claim
26 words
A plug according to claim 1, wherein said conductor assembly is admitted into the housing from one of a top, or a bottom side wall opening.
Claim 6
Dependent Claim
38 words
A plug according to claim 1, wherein the securing body is removable from and insertable into one of a top or bottom side wall opening and said housing includes a locking sliding door covering said side wall opening.
Claim 7
Dependent Claim
22 words
A plug according to claim 1, wherein the securing body is removable from and insertable into the front end of the housing.
Claim 8
Dependent Claim
31 words
A plug according to either of claims 1 or 6, wherein the securing body is in the form of a semi-enclosed bracket having a retaining member to seat said fuse elements.
Claim 9
Dependent Claim
28 words
A plug according to claim 7, wherein the securing body has guide members to slide along a partition wall disposed on a top wall opening of the housing.
Claim 10
Dependent Claim
34 words
A plug according to the claim 1, wherein said housing includes a pair of through slots on the rear end thereof opposite to one of the prong ends for receiving prongs from another plug.
References Cited (Backward Citations)
FR962904A
Cited
US2257608A
Cited
US2462934A
Cited
US3377610A
Cited
US4388604A
Cited
US4420214A
Cited
US4480891A
Cited
US4684914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |