Patent US4738639A successfully refreshed from Google Patents.
US4738639A
Expired / Lapsed
US
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Electrical plug
Assignee: ELECTRI-WIRE Corp
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Filing: 1987-05-28
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Granted: 1988-04-19
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Expires: 2007-05-28
Abstract
Abstract An electrical plug includes a main plug body defining a cavity with a first fuse receptacle embedded in the cavity. A male electrical connector and second fuse receptable are connected to each other to form an insert, both the first and second fuse receptacles having a substantially hollow cylindrical shape, with the second fuse receptacle including an inward projection adapted to trap a fuse in the second receptacle, wherein the insert is removably received in the outer end section of the plug cavity so that the first and second fuse receptacles are aligned and the male electrical connector extends outside of the plug.
Inventors
- 👤 Robert E. Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:45
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/68
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
143 words
An electrical plug, comprising: a dielectric plug body defining a cavity having an outer end section which opens to the outside of said plug body; a first male electrical connector captured in said plug body; a first fuse receptacle inside said cavity; a second male electrical connector and a second fuse receptacle connected to each other, said second fuse receptacle surrounded by a dielectric housing to form an insert, said first and second fuse receptacles having a substantially hollow cylindrical shape and said second receptacle including an inward projection adapted to trap a fuse in said receptacle in a manner such that said fuse is removed with said insert; wherein said insert is removably received in said outer end section of said plug so that said first and second fuse receptacles are aligned and said male electrical connectors extend outside of said plug.
Claim 2
Dependent Claim
143 words
An electrical plug, comprising: a dielectric plug body defining a cavity having an outer end section which opens to the outside of said plug body; a first male electrical connector captured in said plug body; a first fuse receptacle inside said cavity; a second male electrical connector and a second fuse receptacle connected to each other, said second fuse receptacle surrounded by a dielectric housing to form an insert, said first and second fuse receptacles having a substantially hollow cylindrical shape and said second receptacle including an inward projection adapted to trap a fuse in said receptacle in a manner such that said fuse is removed with said insert; wherein said insert is removably received in said outer end section of said plug so that said first and second fuse receptacles are aligned and said male electrical connectors extend outside of said plug.
Claim 3
Dependent Claim
84 words
An electrical plug as recited in claim 1, wherein said second male electrical connector and said second fuse receptacle are permanently embedded in said housing which is received in the outer end section of said cavity with a snap fit, said housing and said cavity having at least one mating projection and detent, respectively with at least one of said housing and said plug body being made of a resilient material in order to achieve a snap fit between said mating projection and detent.
Claim 4
Dependent Claim
28 words
An electrical plug as recited in claim 2, wherein said first fuse receptacle is connected to a wire which extends out of the body of said electrical plug.
Claim 5
Dependent Claim
44 words
An electrical plug as recited in claim 3, wherein the shape of said housing and of the outer end section of said cavity has a noncircular cross section so that the orientation of said housing in said plug body is limited by that shape.
Claim 6
Dependent Claim
44 words
An electrical plug as recited in claim 4, wherein said housing has two opposed, elongated said projections in a plane perpendicular to the plane of said second male electrical connector and said cavity has two opposed, elongated said detents which mate with those projections.
Claim 7
Dependent Claim
40 words
An electrical plug as recited in claim 1 wherein said second male electrical connector and said second fuse receptacle are permanently embedded in said housing, said of material defining thread means for holding said second fuse receptacle in said cavity.
Claim 8
Dependent Claim
20 words
An electrical plug as recited in claim 6 wherein said thread means is defined by a substantially 90° spiral turn.
Claim 9
Dependent Claim
21 words
An electrical plug as recited in claim 7 wherein said housing and said plug body are composed of a polymeric material.
Claim 10
Dependent Claim
43 words
An electrical plug as recited in claim 6 wherein said housing and said cavity define a retaining detent with at least one of said housing and said plug body being made of a resilient material in order to achieve a snap fit arrangement.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |