US4647735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical security device
Assignee: Unimax Switch Corp
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Filing: 1985-05-03
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Granted: 1987-03-03
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Expires: 2005-05-03
Abstract
Abstract An electrical security apparatus includes an enclosure in which there is mounted an electrical receptacle which may be connected to a source of electrical power via its own power cord and plug. The enclosure is proportioned to receive the end of the power cord and the power plug of independently operated electrical device by plugging it into the electrical receptacle which makes direct connection to the power source provided in the apparatus through its power cord and plug. A keylock, operated by a removable key, is provided on the exterior of the enclosure. In the first position, the keylock, operated by a removable key, allows the top panel of the enclosure to be opened and closed. In the second position, the keylock locks the top panel and prevents removal of the power plug of the independently operated electrical device therefrom. In the third position, the keylock operates a switch to allow current to flow from the power source to the independently operated electrical device. The required use of the key to permit current flow to the electrical device prevents unauthorized use thereof.
Inventors
- 👤 John D. Sicher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:04
CPC Classifications
H; H01; H01R; H01R13/00; H01R13/60; H01H; H01H27/00; H01H27/06; H01H2027/066; H01R13/66; H01R13/70
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
258 words
An electrical security apparatus for an electrically operated device having a power cord and a power connector for connecting said power cord to a source of electrical power comprising, housing means having a plurality of wall portions, removable enclosing means mounted on said housing means, electrical receptacle means mounted in said housing means capable of receiving said power connector, power cable means connected to said electrical receptacle for connecting said electrical receptacle to a source of electrical power, electrical switch means mounted in said housing, and capable of energizing and deenergizing said electrical receptacle means, electrical connection means connecting said switch means and said electrical receptacle means, locking means mounted on said housing and capable of a first unlocked position in which said enclosing means may be removed from said housing, a second position engaging said removable enclosing means to lock said removable enclosing means onto said housing means, and a third position also engaging said removable enclosing means, to lock said removable enclosing means onto said housing means and actuating said electrical switch means to energize said electrical receptacle means, said locking means comprising lock operating means, and said lock operating means comprising an elongated member having a first end capable of engaging said removable enclosing means and a second end capable of bearing on said switch means for the purpose of operating said switch means, and retaining means for retaining said power connector of said electrically operated device within said housing, thereby limiting the operation of said device to persons capable of operating said locking means.
Claim 2
Dependent Claim
258 words
An electrical security apparatus for an electrically operated device having a power cord and a power connector for connecting said power cord to a source of electrical power comprising, housing means having a plurality of wall portions, removable enclosing means mounted on said housing means, electrical receptacle means mounted in said housing means capable of receiving said power connector, power cable means connected to said electrical receptacle for connecting said electrical receptacle to a source of electrical power, electrical switch means mounted in said housing, and capable of energizing and deenergizing said electrical receptacle means, electrical connection means connecting said switch means and said electrical receptacle means, locking means mounted on said housing and capable of a first unlocked position in which said enclosing means may be removed from said housing, a second position engaging said removable enclosing means to lock said removable enclosing means onto said housing means, and a third position also engaging said removable enclosing means, to lock said removable enclosing means onto said housing means and actuating said electrical switch means to energize said electrical receptacle means, said locking means comprising lock operating means, and said lock operating means comprising an elongated member having a first end capable of engaging said removable enclosing means and a second end capable of bearing on said switch means for the purpose of operating said switch means, and retaining means for retaining said power connector of said electrically operated device within said housing, thereby limiting the operation of said device to persons capable of operating said locking means.
Claim 3
Dependent Claim
17 words
An electrical security apparatus according to claim 1, in which said locking means comprises a key lock.
Claim 4
Dependent Claim
22 words
An electrical security apparatus according to claim 1, in which said second end of said lock operating means comprises a cam portion.
Claim 5
Dependent Claim
39 words
An electrical security apparatus according to claim 1, in which said switch means includes switch lever means capable of operating said switch means when said switch lever means is actuated by said second end of said lock operating means.
Claim 6
Dependent Claim
94 words
An electrical security apparatus according to claim 1, in which said retaining means comprises a notch portion formed on a wall portion of said housing means with said notch portion proportioned of a size to accept said power cord and permit passage of said power cord through said wall of said housing means, and proportioned to prevent passage of said power connector through said wall of said housing means, and with said removable enclosing means overlying said notch portion, preventing removal of said power connector, thereby retaining said power connector within said housing means.
Claim 7
Dependent Claim
26 words
An electrical security apparatus according to claim 1, further comprising cylindrical core means disposed within said housing means for coiling intermediate portions of said power cord.
Claim 8
Dependent Claim
52 words
An electrical security apparatus according to claim 1, in which said removable enclosing means includes at least one projecting portion and in which said housing means includes at least one recessed portion with said projecting portion retained by said recessed portion when said removable enclosing means is mounted on said housing means.
Claim 9
Dependent Claim
24 words
An electrical security apparatus according to claim 1, in which said plurality of wall portions is disposed in the configuration of an open box.
Claim 10
Dependent Claim
52 words
An electrical security apparatus according to claim 1, in which said removable enclosing means includes a plurality of projecting portions and in which said housing means includes a plurality of recessed portions with said projecting portions retained by said recessed portion when said removable enclosing means is mounted on said housing means.
Claim 11
Dependent Claim
25 words
An electrical security apparatus according to claim 8, in which said plurality of wall portions is disposed in the configuration of a partially covered box.
Claim 12
Dependent Claim
35 words
An electrical security apparatus according to claim 9, in which said locking means engages one of said plurality of projecting portions when said locking means is in said second position and in said third position.
Claim 13
Dependent Claim
38 words
An electrical security apparatus according to claim 1, in which said removable enclosing means comprises a cover panel capable of a first position to expose the interior of said housing means and second position closing said housing means.
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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) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |