US3924256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglar alarm switch
Assignee: Individual
•
Filing: 1974-01-08
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Granted: 1975-12-02
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Expires: 1994-01-08
Abstract
Abstract A burglar alarm switch for protecting a closing member supported on a frame, such as a window, a door, or the like, has a first member which includes terminals adapted to be interconnected within the burglar alarm circuit, and a series combination including contact switch elements having a guarding position and an activated position in series with a first light emitting device. The series combination is connected between the terminals. The first member is to be mounted on the frame. A second member, to be mounted on the closing member, such as the window, door, or the like, includes control means for changing the contact switch elements from their guarding position to their activated position.
Inventors
- 👤 Morton H Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:55
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/08; G08B29/00
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
153 words
A switch for a burglar alarm system which protects a closing member supported on a frame, said switch comprising: a. a first housing adapted to be mounted on the frame and including: terminal means adapted to be interconnected within the burglar alarm circuit, and a series circuit combination of electrical contact means having a guarding position and an active position in series with a first light emitting means, said series circuit combination being inerconnected between said terminal means, and a circuit arrangement of impedance means and second light emitting means electrically connected to said impedance means for illuminating only when current passes through said impedance means, said series circuit combination and said circuit arrangement being connected in parallel circuit relationship; and b. a second housing adapted to be mounted on the closing member and including control means for switching said contact means for one of its positions to the other of its positions.
Claim 2
Dependent Claim
153 words
A switch for a burglar alarm system which protects a closing member supported on a frame, said switch comprising: a. a first housing adapted to be mounted on the frame and including: terminal means adapted to be interconnected within the burglar alarm circuit, and a series circuit combination of electrical contact means having a guarding position and an active position in series with a first light emitting means, said series circuit combination being inerconnected between said terminal means, and a circuit arrangement of impedance means and second light emitting means electrically connected to said impedance means for illuminating only when current passes through said impedance means, said series circuit combination and said circuit arrangement being connected in parallel circuit relationship; and b. a second housing adapted to be mounted on the closing member and including control means for switching said contact means for one of its positions to the other of its positions.
Claim 3
Dependent Claim
22 words
The switch as in claim 1 and wherein said first and second light emitting means each emit light of a different color.
Claim 4
Dependent Claim
65 words
The switch as in claim 1 and wherein said burglar alarm is of the closed circuit type, said guarding position is a closed position, said active position is an open position, and wherein said first light emitting means provides an indication of the operativenss of the entire burglar alarm system, and said second light emitting means provides an indication of the activation of that switch.
Claim 5
Dependent Claim
66 words
The switch as in claim 1 and wherein said burglar alarm system is of the open circuit type, said guarding position is an open position, said active position is a closed position, and wherein said first light emitting means provides an indication of the activation of said switch, and said second light emitting means provides an indication of the operativenss of the entire burglar alarm system.
Claim 6
Dependent Claim
16 words
The switch as in claim 1 and wherein said light emitting means are light emitting diodes.
Claim 7
Dependent Claim
19 words
The switch as in claim 1 and wherein said light emitting are visible externally from said first housing means.
Claim 8
Dependent Claim
36 words
The switch as in claim 1 and further comprising trigger means interconnecting said impedance means and said second light emitting means for illuminating said second light emitting means when sufficient current passes through said impedance means.
Claim 9
Dependent Claim
56 words
The burglar alarm system as in claim 7 and wherein said first housing further includes a circuit arrangement including impedance means and second light emitting means electrically connected to said impedance means for illuminating only when current passes through said impedance means, said series circuit combination and said circuit arrangement being connected in parallel circuit relationship.
Claim 10
Dependent Claim
141 words
A burglar alarm system comprising alarm means adapted to be energized by a source of electrical energy, and a plurality of switch means protecting a respective plurality of closing members each supported on a frame, such that when one of said switch means are activated, said alarm means will sound, each of said switches including: A. a first housing adapted to be mounted on said frame and including: terminal means interconnected within the burglar alarm circuit, and a series circuit combination including electrical contact means having a guarding position and an active position and first light emitting means, said series circuit combination being interconnected between said terminal means, and B. a second housing adapted to be mounted on the closing member and including control means for switching said contact means from one of its positions to the other of its positions.
Claim 11
Dependent Claim
141 words
A burglar alarm system comprising alarm means adapted to be energized by a source of electrical energy, and a plurality of switch means protecting a respective plurality of closing members each supported on a frame, such that when one of said switch means are activated, said alarm means will sound, each of said switches including: A. a first housing adapted to be mounted on said frame and including: terminal means interconnected within the burglar alarm circuit, and a series circuit combination including electrical contact means having a guarding position and an active position and first light emitting means, said series circuit combination being interconnected between said terminal means, and B. a second housing adapted to be mounted on the closing member and including control means for switching said contact means from one of its positions to the other of its positions.
Claim 12
Dependent Claim
151 words
A switch for a burglar alarm system employing a circuit current interruption sensing means for activating an alarm for protecting a movable member in a frame comprising: a. a housing having a wall and adapted for mounting on the frame proximate to the movable member; b. an externally actuatable switch having a pair of switch terminals positioned within said housing; c. a light emitting diode carried by said housing having a pair of diode terminals; d. a pair of housing output terminals extending through the wall of said housing; e. circuit means connecting one said housing terminal to one said switch terminal; f. circuit means connecting the other said housing terminal to one diode terminal; g. circuit means connecting the other said diode terminal to the other said housing terminal; and h. circuit means for connecting said switch and said light emitting diode in series with said circuit interruption sensing means.
Claim 13
Dependent Claim
151 words
A switch for a burglar alarm system employing a circuit current interruption sensing means for activating an alarm for protecting a movable member in a frame comprising: a. a housing having a wall and adapted for mounting on the frame proximate to the movable member; b. an externally actuatable switch having a pair of switch terminals positioned within said housing; c. a light emitting diode carried by said housing having a pair of diode terminals; d. a pair of housing output terminals extending through the wall of said housing; e. circuit means connecting one said housing terminal to one said switch terminal; f. circuit means connecting the other said housing terminal to one diode terminal; g. circuit means connecting the other said diode terminal to the other said housing terminal; and h. circuit means for connecting said switch and said light emitting diode in series with said circuit interruption sensing means.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |