US4484181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Travel burglar/smoke alarm
Assignee: Cable Electric Products Inc
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Filing: 1982-04-19
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Granted: 1984-11-20
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Expires: 2002-04-19
Abstract
Abstract A portable apparatus for use by a traveler whereby the traveler is able to protect himself from unauthorized entry through a preselected door and simultaneously protect himself from a fire occuring in the room where the portable apparatus is located.
Inventors
- 👤 Frederic W. Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:34
CPC Classifications
G; G08; G08B; G08B19/00; G08B13/00; G08B13/02; G08B13/08; Y; Y10; Y10S; Y10S116/00; Y10S116/44
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
181 words
A portable alarm apparatus, comprising: a housing having a power supply and mountable to a door; a lever pivotably mounted about said housing and biased against a door jamb when said housing is mounted to said door; a switch carried by said housing and actuated by pivotable movement of said lever when said door is moved from said door jamb; smoke detection means carried by said housing; alarm means carried by said housing for signalling movement of said door away from said door jamb and the presence of smoke; and a dual purpose detection circuit carried by said housing and operatively connected to said power supply, said detection circuit having first and second integrated circuits, said first integrated circuit connected to said second integrated circuit and said switch for enabling said second integrated circuit to activate said alarm when said switch is actuated by said lever movement and enabled said first integrated circuit, and said second integrated circuit connected to said smoke detection means and activating said alarm when said smoke detection means is actuated and enables said second integrated circuit.
Claim 2
Dependent Claim
181 words
A portable alarm apparatus, comprising: a housing having a power supply and mountable to a door; a lever pivotably mounted about said housing and biased against a door jamb when said housing is mounted to said door; a switch carried by said housing and actuated by pivotable movement of said lever when said door is moved from said door jamb; smoke detection means carried by said housing; alarm means carried by said housing for signalling movement of said door away from said door jamb and the presence of smoke; and a dual purpose detection circuit carried by said housing and operatively connected to said power supply, said detection circuit having first and second integrated circuits, said first integrated circuit connected to said second integrated circuit and said switch for enabling said second integrated circuit to activate said alarm when said switch is actuated by said lever movement and enabled said first integrated circuit, and said second integrated circuit connected to said smoke detection means and activating said alarm when said smoke detection means is actuated and enables said second integrated circuit.
Claim 3
Dependent Claim
16 words
The portable alarm apparatus of claim 1, wherein said alarm means comprises an audible signalling means.
Claim 4
Dependent Claim
16 words
The portable alarm apparatus of claim 1, wherein said alarm means comprises a visual signalling means.
Claim 5
Dependent Claim
25 words
The portable alarm apparatus of claim 1, wherein said alarm means comprises a dual purpose signalling means including both an audible and visual warning means.
Claim 6
Dependent Claim
41 words
The portable alarm apparatus of claim 1, wherein said lever is operatively connected to a rotatable cam carried by said housing, said cam rotating in response to the pivoting of said lever, said cam actuating said switch when caused to rotate.
Claim 7
Dependent Claim
30 words
The portable alarm apparatus of claim 1, wherein said detection circuit further comprises means for latching said alarm when said second integrated circuit is enabled by said first integrated circuit.
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) | 1987-11-20 | 1988-05-21 | 1988-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-20 | 1992-05-21 | 1992-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-20 | 1996-05-21 | 1996-11-20 | $7700.00 | Window Closed / Lapsed |