Patent US4500152A successfully refreshed from Google Patents.
US4500152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal outlet
Assignee: SL Industries Inc
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Filing: 1982-09-30
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Granted: 1985-02-19
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Expires: 2002-09-30
Abstract
Abstract An electrical outlet receptacle receives conductor wires without crimping. A receptacle body of electrical insulating material has a face with a number of cantilever portions and projections extending from one side of the face. Cooperating cam surfaces are formed on the cantilever portions and projections, as well as locking surfaces, to receive conductor wire bare portions. The conductor wire bare portions are mounted so that they are directly tangentially engaged by an electrical plug prong when a prong is inserted into a prong-receiving slot in the receptacle body face.
Inventors
- 👤 S. Scott Hammill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:50
CPC Classifications
H; H01; H01R; H01R25/00; H01R25/006; H01R13/00; H01R13/46; H01R13/502; H01R13/506; Y; Y10; Y10S; Y10S439/00; Y10S439/93
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
286 words
An electrical receptacle comprising: a receptacle body of relatively inflexible electrical insulating material; means defining first and second spaced, parallel, elongated prong-receiving slots in said receptacle body; first and second conductor wires, each having a bare, uninsulated portion thereof, and each being substantially longer than any dimension of said body; means formed in said receptacle body for receiving said first conductor wire bare portion so that it extends substantially perpendicular to the direction of elongation of said first prong-receiving slot and intersects said slot, and for mounting said second conductor wire bare portion so that it extends substantially perpendicular to said second prong-receiving slot and intersects said slot, and for mounting said first and second wire conductor bare portions so that they will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into said respective first and second prong-receiving slots; resilient biasing means for resiliently biasing said first and second conductor wire bare portions into intersecting relationship with said first and second prong-receiving slots, said resilient biasing means comprising portions of said receptacle body that are thinned so that they are relatively flexible, said thinned portions extending only a small part of the dimension of said housing parallel to the dimension of elongation of said first and second conductor wire; and said receptacle body thinned portions comprising flexible cantilever portions each having a free end and a fixed end and elongated in a dimension parallel to the dimension of elongation of said prong-receiving slots, each of said cantilever portions including a cam portion on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion, and immediately adjacent said cam surface.
Claim 2
Dependent Claim
286 words
An electrical receptacle comprising: a receptacle body of relatively inflexible electrical insulating material; means defining first and second spaced, parallel, elongated prong-receiving slots in said receptacle body; first and second conductor wires, each having a bare, uninsulated portion thereof, and each being substantially longer than any dimension of said body; means formed in said receptacle body for receiving said first conductor wire bare portion so that it extends substantially perpendicular to the direction of elongation of said first prong-receiving slot and intersects said slot, and for mounting said second conductor wire bare portion so that it extends substantially perpendicular to said second prong-receiving slot and intersects said slot, and for mounting said first and second wire conductor bare portions so that they will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into said respective first and second prong-receiving slots; resilient biasing means for resiliently biasing said first and second conductor wire bare portions into intersecting relationship with said first and second prong-receiving slots, said resilient biasing means comprising portions of said receptacle body that are thinned so that they are relatively flexible, said thinned portions extending only a small part of the dimension of said housing parallel to the dimension of elongation of said first and second conductor wire; and said receptacle body thinned portions comprising flexible cantilever portions each having a free end and a fixed end and elongated in a dimension parallel to the dimension of elongation of said prong-receiving slots, each of said cantilever portions including a cam portion on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion, and immediately adjacent said cam surface.
Claim 3
Dependent Claim
113 words
An electrical receptacle as recited in claim 1 further comprising means defining a third elongated prong-receiving slot in said receptacle body for receipt of an electrical plug ground prong; a third conductor wire, having a bare, uninsulated portion thereof, and being substantially longer than any dimension of said body; means formed in said receptacle body for receiving said third conductor wire bare portion and mounting it so that it extends substantially perpendicular to said third prong-receiving slot in said receptacle body and intersects said slot at an intermediate portion of said slot; and resilient biasing means for resiliently biasing said third conductor wire bare portion into intersecting relationship with said third prong-receiving slot.
Claim 4
Dependent Claim
80 words
An electrical receptacle as recited in claim 1 wherein said receptacle body comprises a face in which said elongated prong-receiving slots are formed, said face disposed in a plane perpendicular to the direction of elongation of said prong-receiving slots; and each of said elongated cantilever portions operatively connected at said fixed end thereof to said receptacle body face and said cam portion thereof spaced from said face, said cantilever portion elongated in the dimension of elongation of said prong-receiving slots.
Claim 5
Dependent Claim
84 words
An electrical receptacle as recited in claim 3 wherein said means for receiving said conductor wire bare portions comprise said cantilever portions and relatively rigid projecting portions projecting in the same direction from said face as said cantilever portions, each projecting portion comprises a cam surface complimentary to a corresponding cantilever portion cam surface, and an abutment surface generally perpendicular to the direction of elongation of a cooperating cantilever portion, and located nearer said face than said locking surface of said cooperating cantilever portion.
Claim 6
Dependent Claim
224 words
An electrical receptacle comprising: a receptacle body of electrical insulating material; means defining first, second, and third spaced, parallel, elongated prong-receiving slots in said receptacle body; first, second, and third conductor wires, each having a bare, uninsulated portion thereof, and each being substantially longer than any dimensions of said body; means formed on said receptacle body for receiving said first, second, and third conductor wire bare portions and mounting said first conductor bare portion so that it extends substantially perpendicular to and intersects said first prong-receiving slot, mounting said second conductor wire bare portion so that it extends substantially perpendicular to and intersects said second prong-receiving slot, and mounting said third conductor wire bare portion so that it extends substantially perpendicular to and intersects said third prong-receiving slot, and for mounting said conductor wires so that said first, second, and third conductor wire bare portions will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into said respective first, second, or third prong-receiving slots; and said receptacle body including a plurality of elongated flexible cantilever portions each having a free end and fixed end, and each having a cam surface formed on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion, and immediately adjacent said cam surface.
Claim 7
Dependent Claim
224 words
An electrical receptacle comprising: a receptacle body of electrical insulating material; means defining first, second, and third spaced, parallel, elongated prong-receiving slots in said receptacle body; first, second, and third conductor wires, each having a bare, uninsulated portion thereof, and each being substantially longer than any dimensions of said body; means formed on said receptacle body for receiving said first, second, and third conductor wire bare portions and mounting said first conductor bare portion so that it extends substantially perpendicular to and intersects said first prong-receiving slot, mounting said second conductor wire bare portion so that it extends substantially perpendicular to and intersects said second prong-receiving slot, and mounting said third conductor wire bare portion so that it extends substantially perpendicular to and intersects said third prong-receiving slot, and for mounting said conductor wires so that said first, second, and third conductor wire bare portions will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into said respective first, second, or third prong-receiving slots; and said receptacle body including a plurality of elongated flexible cantilever portions each having a free end and fixed end, and each having a cam surface formed on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion, and immediately adjacent said cam surface.
Claim 8
Dependent Claim
43 words
An electrical receptacle as recited in claim 5 further comprising a portion of said receptacle body comprising resilient biasing means for resiliently biasing at least said first and second conductor wire bare portions into intersecting relationship with said first and second prong-receiving slots.
Claim 9
Dependent Claim
77 words
An electrical receptacle as recited in claim 5 wherein said receptacle body comprises a face in which said elongated prong-receiving slots are formed, said face disposed in a plane perpendicular to the direction of elongation of said prong-receiving slots; said elongated cantilever portions operatively connected at said fixed end thereof to said receptacle body face with said cam surface thereof spaced from said face, said cantilever portions elongated in the dimension of elongation of said prong-receiving slots.
Claim 10
Dependent Claim
84 words
An electrical receptacle as recited in claim 7 wherein said means for receiving said conductor wire bare portions comprise said cantilever portions and relatively rigid projecting portions projecting in the same direction from said face as said cantilever portions, each projecting portion comprises a cam surface complimentary to a corresponding cantilever portion cam surface, and an abutment surface generally perpendicular to the dimension of elongation of a cooperating cantilever portion, and located nearer said face than said locking surface of said cooperating cantilever portion.
Claim 11
Dependent Claim
33 words
An electrical receptacle as recited in claim 7 wherein each cantilever portion locking surface has an arcuate configuration generally corresponding to an arcuate surface of a bare wire portion to be received thereby.
Claim 12
Dependent Claim
80 words
An electrical receptacle as recited in claim 7 wherein said base includes a pair of flexible mounting tabs at opposite ends thereof, and further comprising means defining wire-abutting surfaces on a portion of each of said mounting tabs, said wire-abutting surfaces comprising part of said means for mounting one of said conductor wires so that a bare portion thereof will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into a respective prong-receiving slot.
Claim 13
Dependent Claim
32 words
An electrical receptacle as recited in claim 9 wherein a projecting portion is provided on each side of each cantilever portion in the dimension of elongation of a conductor wire received thereby.
Claim 14
Dependent Claim
21 words
An electrical receptacle as recited in claim 11 wherein said projecting portion and cantilever portion free ends remain uncovered during use.
Claim 15
Dependent Claim
224 words
An electrical receptacle comprising: a receptacle body of electrical insulating material, including a face; means defining first and second spaced, parallel, elongated prong-receiving slots in said receptacle body face; first and second conductor wires, each having a bare uninsulated portion thereof and being substantially longer than any dimension of said body; a plurality of elongated flexible cantilever portions of said receptacle body operatively fixed at one end thereof to said receptacle body face and having a free end thereof spaced from said receptacle body face, said cantilever portions elongated in the dimension of elongation of said prong-receiving slots; each cantilever portion having a cam surface formed on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion and immediately adjacent said cam surface; a plurality of relatively rigid projections of said receptacle body extending from said body face in the same dimension of elongation as said cantilever portions, said projections cooperating with said cantilever portions to provide means for receiving said first and second conductor wire bare portions and mounting said bare portions so that they extend substantially perpendicular to and intersect the respective first and second prong-receiving slots, and so that they will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into a respective prong-receiving slot.
Claim 16
Dependent Claim
224 words
An electrical receptacle comprising: a receptacle body of electrical insulating material, including a face; means defining first and second spaced, parallel, elongated prong-receiving slots in said receptacle body face; first and second conductor wires, each having a bare uninsulated portion thereof and being substantially longer than any dimension of said body; a plurality of elongated flexible cantilever portions of said receptacle body operatively fixed at one end thereof to said receptacle body face and having a free end thereof spaced from said receptacle body face, said cantilever portions elongated in the dimension of elongation of said prong-receiving slots; each cantilever portion having a cam surface formed on the free end thereof and a locking surface extending generally perpendicular to the dimension of elongation of said cantilever portion and immediately adjacent said cam surface; a plurality of relatively rigid projections of said receptacle body extending from said body face in the same dimension of elongation as said cantilever portions, said projections cooperating with said cantilever portions to provide means for receiving said first and second conductor wire bare portions and mounting said bare portions so that they extend substantially perpendicular to and intersect the respective first and second prong-receiving slots, and so that they will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into a respective prong-receiving slot.
Claim 17
Dependent Claim
33 words
An electrical receptacle as recited in claim 13 wherein each cantilever portion locking surface has an arcuate configuration generally corresponding to an arcuate surface of a bare wire portion to be received thereby.
Claim 18
Dependent Claim
36 words
An electrical receptacle as recited in claim 14 wherein a said projecting of said receptacle body is provided on each side of each cantilever portion in the dimension of elongation of a conductor wire received thereby.
Claim 19
Dependent Claim
20 words
An electrical receptacle as recited in claim 15 wherein said projections and cantilever portion free ends remain uncovered during use.
Claim 20
Dependent Claim
114 words
An electrical receptacle as recited in claim 13 further comprising means defining a third prong-receiving slot; a third conductor wire; and means for receiving said third conductor wire to be engaged by an electrical plug prong inserted into said third prong-receiving slot; and wherein said base includes a pair of flexible mounting tabs at opposite ends thereof; and further comprising means defining wire-abutting surfaces on a portion of each of said mounting tabs, said wire-abutting surfaces comprising part of said means for mounting said third conductor wires so that a bare portion thereof will be directly tangentially engaged by an electrical plug prong when a said prong is inserted into a respective prong-receiving slot.
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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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |