US3748490A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglary deterrent device
Assignee: Individual
•
Filing: 1971-09-22
•
Granted: 1973-07-24
•
Expires: 1991-09-22
Abstract
Abstract A device for deterring burglars comprises a base supporting incandescent lamp bulbs and containing an electric motor with its shaft projecting upwardly from the base between the bulbs to support a rotatable partial shade, and a switch intermittently opened and closed responsive to operation of the motor for intermittently turning the lamps on and off.
Inventors
- 👤 W Gruber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:11
CPC Classifications
G; G08; G08B; G08B15/00; G08B15/002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
A burglary deterrent device comprising a base, a motor mounted on said base, a plurality of electric lamps supported on said base, a rotatable shaft drivably connected to saiD motor and mounting means partially shading said lamps, said lamps being positioned radially in different directions from said shaft, a switch controlling said lamps to energize said lamps alternately, and an actuator drivably connected to said motor and operatively connected to said switch for intermittently actuating the same whereby to alternate the illumination of said lamps with respect to each other.
Claim 2
Dependent Claim
90 words
A burglary deterrent device comprising a base, a motor mounted on said base, a plurality of electric lamps supported on said base, a rotatable shaft drivably connected to saiD motor and mounting means partially shading said lamps, said lamps being positioned radially in different directions from said shaft, a switch controlling said lamps to energize said lamps alternately, and an actuator drivably connected to said motor and operatively connected to said switch for intermittently actuating the same whereby to alternate the illumination of said lamps with respect to each other.
Claim 3
Dependent Claim
39 words
A burglary deterrent device according to claim 1 wherein said actuator comprises a rotating element and said switch has an operating element movable radially with respect to said rotating element and engageable thereby in the course of rotation thereof.
Claim 4
Dependent Claim
29 words
A burglary deterrent device according to claim 2 wherein said rotating element is formed with a plurality of circumferentially spaced radial projections individually engageable with said switch operating element.
Claim 5
Dependent Claim
29 words
A burglary deterrent device according to claim 3 wherein said operating element is reciprocably mounted in said switch and resiliently biased outwardly for engagement with said actuating element projections.
Claim 6
Dependent Claim
23 words
A burglary deterrent device according to claim 4 wherein said partial shading means comprises a radially elongated downwardly and outwardly sloping shade member.
Claim 7
Dependent Claim
23 words
A burglary deterrent device according to claim 5 wherein there are a plurality of said shade members spaced apart circumferentially of said shaft.
Claim 8
Dependent Claim
18 words
A burglary deterrent device according to claim 1 in which said lamps are arranged symmetrically about said shaft.
Claim 9
Dependent Claim
24 words
A burglary deterrent device according to claim 7 wherein there are a pair of said lamps positioned respectively on opposite sides of said shaft.
Claim 10
Dependent Claim
34 words
A burglary deterrent device according to claim 8 wherein said switch device is a single pole double throw switch having an energized contact member engageable alternately with contacts electrically connected to the respective lamps.
Claim 11
Dependent Claim
40 words
A burglary deterrent device according to claim 1 wherein said base includes a housing enclosing said motor, said switch and said actuator, said lamps being mounted on the exterior of said housing and said shaft projecting vertically from said housing.
Claim 12
Dependent Claim
37 words
A burglary deterrent device according to claim 10 wherein said actuator is a rotatable disc having circumferentially spaced radial projections on its periphery and said switch has an operating element resiliently biased into engagement with said projections.
Claim 13
Dependent Claim
49 words
A burglary deterrant device according to claim 11 including a pair of said lamps on opposite sides of said shaft, said shade means comprising a pair of radially elongated shade members inclined downardly from said shaft and adapted to intermittently shadingly overlie said lamps during rotation of said shaft.
References Cited (Backward Citations)
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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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |