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US3783438A Expired / Lapsed US ⏱️ 0.0 years remaining

Electric wall plug

Assignee: Individual
•
Filing: 1972-05-26
•
Granted: 1974-01-01
•
Expires: 1992-05-26
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Abstract

Abstract An electric wall plug having a sleeve or insert member maintaining the contact ends of the flexible prongs in secure engagement with the ends of the connector wires without any need for wrapping the wires around the contact ends. This permits rapid assembly and disassembly of the plug.

Inventors

  • 👤 P Grant

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:06
CPC Classifications
H; H01; H01R; H01R24/00; H01R24/28; H01R2103/00

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 183 words
An electrical plug comprising in combination a body member and a sleeve-type pressure applying member of complementary form, said body member being formed with a substantially planar wall, a lower lip at one end thereof and a block centrally located on the wall having a pair of shallow recesses for receiving the ends of electrical conductors in substantially linear configuration, a pair of V-shaped resilient prongs secured one on each side of said block, each prong having a protuberance registering with the corresponding recess in the block, said pressure applying member being formed by a pair of spaced abutments connected together by an upper lip and substantially planar rear wall to define a central cavity, said block being formed with a pair of grooves extending in the direction of said prongs and said abutments having cooperating tongues whereby said body member and said pressure applying member fit together by sliding action with said planar walls defining the outside surface of said plug, said spaced abutments urging said protuberances against the ends of the corresponding conductors towards the recesses to form secure electrical contact.
Claim 2
Dependent Claim 183 words
An electrical plug comprising in combination a body member and a sleeve-type pressure applying member of complementary form, said body member being formed with a substantially planar wall, a lower lip at one end thereof and a block centrally located on the wall having a pair of shallow recesses for receiving the ends of electrical conductors in substantially linear configuration, a pair of V-shaped resilient prongs secured one on each side of said block, each prong having a protuberance registering with the corresponding recess in the block, said pressure applying member being formed by a pair of spaced abutments connected together by an upper lip and substantially planar rear wall to define a central cavity, said block being formed with a pair of grooves extending in the direction of said prongs and said abutments having cooperating tongues whereby said body member and said pressure applying member fit together by sliding action with said planar walls defining the outside surface of said plug, said spaced abutments urging said protuberances against the ends of the corresponding conductors towards the recesses to form secure electrical contact.
Claim 3
Dependent Claim 49 words
An electrical plug as defined in claim 1 wherein said block is formed with a further groove extending at right angles to the direction of the prongs and said pressure applying member has a further tOngue cooperating with said further groove to maintain the plug in its assembled condition.

References Cited (Backward Citations)

US1988725A Cited
US1956018A Cited
US2042580A Cited
US2032470A Cited
US2196052A Cited
DE882872C Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-12-31 1977-07-02 1978-01-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-12-31 1981-07-02 1982-01-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-12-31 1985-07-02 1986-01-01 $7700.00 Window Closed / Lapsed

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