Patent US4008382A successfully refreshed from Google Patents.
US4008382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety electrical plug
Assignee: Lee Raymond Organization Inc
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Filing: 1975-03-10
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Granted: 1977-02-15
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Expires: 1995-03-10
Abstract
Abstract An electrical plug adaptable for joining the conductors of an attached line cord to a socket, in which conducting elements are mounted on one or more discs rotatably mounted in the plug so that the plug conducts electricity only when the discs are rotated to a particular setting. The plug prevents unauthorized use, particularly by young children, when the discs are rotated off the particular setting.
Inventors
- 👤 Richard P. De Rosa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:05
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/66; H01R13/70
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
174 words
An electrical plug fitted with a front section fixed to a rear section with two rotatable members mounted between the said fixed front and rear sections, with each rotatable member fastened so as to be individually rotatable with respect to each other and to a said fixed section which it abuts, each of said fixed sections and said rotatable members fitted with individual conducting elements, with the individual conducting elements in each rotatable member located to individually electrically connect to an individual conducting element in the abutting fixed section in a given position of rotation of each of both said rotatable members with respect to the said fixed sections, with each individual conducting element in a first rotatable member electrically connected to an individual conducting element in the second rotatable member in said given position of rotation, such that said rotatable members serve to electrically join the conducting elements of the front section individually to the conducting elements of the rear section only when each rotatable member is rotated to the said given position.
Claim 2
Dependent Claim
174 words
An electrical plug fitted with a front section fixed to a rear section with two rotatable members mounted between the said fixed front and rear sections, with each rotatable member fastened so as to be individually rotatable with respect to each other and to a said fixed section which it abuts, each of said fixed sections and said rotatable members fitted with individual conducting elements, with the individual conducting elements in each rotatable member located to individually electrically connect to an individual conducting element in the abutting fixed section in a given position of rotation of each of both said rotatable members with respect to the said fixed sections, with each individual conducting element in a first rotatable member electrically connected to an individual conducting element in the second rotatable member in said given position of rotation, such that said rotatable members serve to electrically join the conducting elements of the front section individually to the conducting elements of the rear section only when each rotatable member is rotated to the said given position.
Claim 3
Dependent Claim
48 words
The combination as recited in claim 1 in which the plug is fitted with a front section fixed to a central section fixed to a rear section of the plug, with a rotatable section mounted between each side of the central section and the front or rear section.
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) | 1980-02-15 | 1980-08-16 | 1981-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-15 | 1984-08-16 | 1985-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-15 | 1988-08-16 | 1989-02-15 | $7700.00 | Window Closed / Lapsed |