Patent US4804257A successfully refreshed from Google Patents.
Patent US3710304A successfully refreshed from Google Patents.
US3710304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking electric plug
Assignee: Individual
•
Filing: 1971-05-05
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Granted: 1973-01-09
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Expires: 1991-05-05
Abstract
Abstract An electric plug of the female type, including a rod and toggle arrangement having pushbuttons so as to frictionally engage the tongs of a male plug received within the plug to prevent the male plug from slipping out of the female plug.
Inventors
- 👤 J Warner
- 👤 R Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:35
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/02; H01R13/193; H01R13/20
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
161 words
A locking electrical socket comprising a body member, an electric cord carried by said body member for the passage of current to electrical contacts carried within said body, a pair of opposed push buttons carried by said body with a toggle member disposed therebetween, a pair of opposed and aligned plate members connected by said toggle member to a rod member, with insulation bonded to said plates adjacent said electrical contacts for grippingly engaging prongs of a male plug received within said socket, said rod member being secured to said opposed push buttons and pivotally carrying said toggle member, rubber means secured over openings in said body member for receiving said buttons to prevent foreign matter from entering the openings said buttons are oscilateable within, said plate member being expandable by bearing down upon one of said buttons so as to grippingly engage said prongs of said male plug which is received within apertures in an end wall of said socket.
Claim 2
Dependent Claim
161 words
A locking electrical socket comprising a body member, an electric cord carried by said body member for the passage of current to electrical contacts carried within said body, a pair of opposed push buttons carried by said body with a toggle member disposed therebetween, a pair of opposed and aligned plate members connected by said toggle member to a rod member, with insulation bonded to said plates adjacent said electrical contacts for grippingly engaging prongs of a male plug received within said socket, said rod member being secured to said opposed push buttons and pivotally carrying said toggle member, rubber means secured over openings in said body member for receiving said buttons to prevent foreign matter from entering the openings said buttons are oscilateable within, said plate member being expandable by bearing down upon one of said buttons so as to grippingly engage said prongs of said male plug which is received within apertures in an end wall of said socket.
Claim 3
Dependent Claim
72 words
The combination according to claim 1, wherein said plate members secured to said toggle members are in parallel alignment with said electrical contacts secured to the interior of said socket, said electrical contacts are electrically secured to the cord carried by said socket, and said rubber means of said socket is adhered to said body at its outer edges and prevents foreign matter from entering the openings said pushbuttons are oscilateable within.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |