US4770647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical plug and socket having replaceable overcurrent protection device with safety latch means
Assignee: Individual
•
Filing: 1986-08-07
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Granted: 1988-09-13
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Expires: 2006-08-07
Abstract
Abstract The invention relates to an electrical plug having insulating inner housing with a channel therein. A pair of conductors extending into the channel are provided having terminals fixed to ends thereof and disposed in the channel. A seat of insulated material is positioned in the channel between the terminals for fixing the terminals in the channel. A pair of contacts extend into the insulating housing having at least a portion communicating with the channel. A securing body of insulating material is disposed in the channel between the contacts for holding the prongs to the insulating housing, the securing body being removable from the inner housing. The housing being removably inserted within the through opening of an outer casing with spurs engaging the recesses.
Inventors
- 👤 Jeng-Shyong Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:08
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/68
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
202 words
An electrical plug comprising: an insulating inner housing having a channel therein; a pair of conductors extending into said channel having terminals fixed to ends thereof and disposed in said channel, a seat of insulated material in said channel between said terminals for fixing said terminals in said channel; a pair of contacts extending into said insulating housing having at least a portion communicating with said channel; a securing body of insulating material disposed in said channel between said contacts for holding said prongs to said insulating housing, said securing body being removable from said inner housing; a pair of fuse members each disposed in said channel and electrically connected between one contact and one terminal, said securing body being engaged against at least one end of said fuses and between said fuses for fixing said fuse in said housing; a pair of inverted spurs each disposed at a side wall of said housing; an insulating outer casing having a through opening therein with an inlet and an outlet provided at opposite ends, and a pair of recesses at inside walls thereof; and said housing being removably inserted within the through opening of the outer casing with the spurs engaging the recesses.
Claim 2
Dependent Claim
202 words
An electrical plug comprising: an insulating inner housing having a channel therein; a pair of conductors extending into said channel having terminals fixed to ends thereof and disposed in said channel, a seat of insulated material in said channel between said terminals for fixing said terminals in said channel; a pair of contacts extending into said insulating housing having at least a portion communicating with said channel; a securing body of insulating material disposed in said channel between said contacts for holding said prongs to said insulating housing, said securing body being removable from said inner housing; a pair of fuse members each disposed in said channel and electrically connected between one contact and one terminal, said securing body being engaged against at least one end of said fuses and between said fuses for fixing said fuse in said housing; a pair of inverted spurs each disposed at a side wall of said housing; an insulating outer casing having a through opening therein with an inlet and an outlet provided at opposite ends, and a pair of recesses at inside walls thereof; and said housing being removably inserted within the through opening of the outer casing with the spurs engaging the recesses.
Claim 3
Dependent Claim
23 words
The electrical plug according to claim 1, wherein the recesses provided on the wall of outer casing are holes through the casing wall.
Claim 4
Dependent Claim
29 words
The electrical plug according to claim 1, wherein a clearance is provided between the spur and recess connection, to facilitate the squeeze-release of the housing from the outer casing.
Claim 5
Dependent Claim
40 words
A plug according to claim 1, wherein said housing includes a pair of through slots on opposite sides of said channel, each contact having an extension extending in said through slot for making contact with another contact of another plug.
Claim 6
Dependent Claim
48 words
A plug according to claim 1, wherein said securing body has a pair of legs and biasing means for biasing said pair of legs apart, each leg having an engagement projection and each contact having a corresponding recess for receiving an engagement projection of one of said legs.
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) | 1991-09-13 | 1992-03-14 | 1992-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-13 | 1996-03-14 | 1996-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-13 | 2000-03-14 | 2000-09-13 | $7700.00 | Window Closed / Lapsed |