Patent US2130525A successfully refreshed from Google Patents.
US4975550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Security device for computers
Assignee: Individual
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Filing: 1989-06-12
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Granted: 1990-12-04
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Expires: 2009-06-12
Abstract
Abstract A security device for preventing unauthorized use of a personal computer includes a rigid housing which is attached to an exposed surface of the computer to conceal the keyboard actuator of the computer. Electrical connectors in the housing electrically connect the keyboard actuator with an externally accessible key switch. The key switch is movable to and from a first condition wherein the key switch actuates the keyboard and the second condition wherein the key switch prevents actuation of the keyboard.
Inventors
- 👤 S. Joseph Panchisin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
G; G06; G06F; G06F21/00; G06F21/70; G06F21/82; G06F21/83
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
110 words
A security device for preventing unauthorized use of a personal computer having a keyboard actuator on an exposed surface of its central processing unit, said device being in combination with said computer, said device comprising a rigid housing, mounting means for attaching said rigid housing to said exposed surface to completely shield and conceal said keyboard actuator, a keyswitch, electrical connector means in said housing electrically connecting said keyboard actuator with said keyswitch, said keyswitch being exposed externally of said housing, and said keyswitch being movable to and from a first condition wherein said keyswitch actuates said keyboard and a second condition wherein said keyswitch prevents actuation of said keyboard.
Claim 2
Dependent Claim
110 words
A security device for preventing unauthorized use of a personal computer having a keyboard actuator on an exposed surface of its central processing unit, said device being in combination with said computer, said device comprising a rigid housing, mounting means for attaching said rigid housing to said exposed surface to completely shield and conceal said keyboard actuator, a keyswitch, electrical connector means in said housing electrically connecting said keyboard actuator with said keyswitch, said keyswitch being exposed externally of said housing, and said keyswitch being movable to and from a first condition wherein said keyswitch actuates said keyboard and a second condition wherein said keyswitch prevents actuation of said keyboard.
Claim 3
Dependent Claim
25 words
The combination of claim 1 including a key detachably insertable into said keyswitch for controlling the selection of said first condition and said second condition.
Claim 4
Dependent Claim
16 words
The combination of claim 1 wherein said keyswitch is mounted on and supported by said housing.
Claim 5
Dependent Claim
14 words
The combination of claim 1 wherein said keyswitch is mounted remote from said housing.
Claim 6
Dependent Claim
22 words
The combination of claim 1 wherein said electrical connector means comprises an output wire and an input wire connected to said keyswitch.
Claim 7
Dependent Claim
49 words
The combination of claim 5 including a keyboard receptor and a mouse receptor mounted to an externally exposed wall of said housing, at least one jack for being electrically connected to said keyboard actuator, and said electrical connector means connecting said receptors to said jack and to said keyswitch.
Claim 8
Dependent Claim
28 words
The combination of claim 6 including a dummy jack having no electrical connection to said keyswitch, and said dummy jack comprising means to prevent said housing from turning.
Claim 9
Dependent Claim
16 words
The combination of claim 6 including a pair of said jacks electrically connected to said keyswitch.
Claim 10
Dependent Claim
19 words
The combination of claim 6 including a speaker receptacle on said housing electrically connected to the computer speaker port.
Claim 11
Dependent Claim
31 words
The combination of claim 6, wherein said computer having a mouse port and a keyboard port, and said housing concealing and preventing access to said mouse port and said keyboard port.
Claim 12
Dependent Claim
20 words
The combination of claim 1 wherein said mounting means comprises snap clips for detachably mounting said housing to said computer.
Claim 13
Dependent Claim
12 words
The combination of claim 1 wherein said mounting means comprises an adhesive.
Claim 14
Dependent Claim
15 words
The combination of claim 1 wherein said housing is mounted directly to said exposed surface.
Claim 15
Dependent Claim
14 words
The combination of claim 1 wherein said housing is remote from said exposed surface.
Claim 16
Dependent Claim
22 words
The combination of claim 14 wherein said housing is attached to said exposed surface by an electrical cable extending from said housing.
Claim 17
Dependent Claim
24 words
The combination of claim 15 including a secondary housing shielding and concealing said keyboard actuator, and said electrical cable extending to said secondary housing.
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) | 1993-12-03 | 1994-06-04 | 1994-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-03 | 1998-06-04 | 1998-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-03 | 2002-06-04 | 2002-12-04 | $7700.00 | Window Closed / Lapsed |