United States Patent [19] [11] Patent Number: 4,523,178
Fulhorst [45] Date of Patent: Jun. 11, 1985
[54] WIRELESS ALARM SYSTEM IN
CONJUNCTION WITH AT LEAST ONE
VEHICLE
[76] Inventor: George E. Fulhorst, 2842 Forbes
Ave., Santa Clara, Calif. 95051
[21] Appl. No.: 351,200
[22] Filed: Feb. 22, 1982
[51] Int. C1.3 G08B 13/08; B60R 25/04
[52] U.S. CI 340/64; 340/63;
340/539
[58] Field of Search 340/539, 64, 63
[56] References Cited
U.S. PATENT DOCUMENTS
2,766,358 10/1956 Davidson 200/168
3,440,635 4/1969 Hull 340/539
3,588,858 6/1971 Demuth 340/539
3,646,515 2/1972 Vodehnal 340/64
3,703,714 11/1972 Andrews 340/64
3,795,896 3/1974 Isaacs 340/539
3,825,833 7/1974 Bogue et al 325/119
3,914,692 10/1975 Seaborn, Jr 325/53
3,988,724 10/1976 Anderson 340/539
4,063,410 12/1977 Welling 58/38
4,095,211 6/1978 Shaughnessy 340/539
4,143,368 3/1979 Route et al 340/63
4,149,163 4/1979 Fathauer 340/539
4,151,514 4/1979 Haynes 340/384 E
4,157,540 6/1979 Oros 340/539
4,159,467 6/1979 Ballin 340/64
4,162,449 7/1979 Bouyssounnouse et al 325/55
4,189,721 2/1980 Doell 340/539
4,191,948 3/1980 Stockdale 340/539
4,232,308 11/1980 Lee et al 340/539
OTHER PUBLICATIONS
Pulsafe by TMX (4 Sheets).
Primary Examiner—Glen R. Swann, III
Attorney, Agent, or Firm—Jack M. Wiseman
[57] ABSTRACT
An operator carries a portable transmitter when away from a parked vehicle. In the event of an emergency condition, the operator manually activates the portable transmitter to transmit within a prescribed area a coded signal. Vehicles located within the prescribed area have receivers installed therein. When the receivers detect the coded signal transmitted by the portable transmitter, the receivers are activated to operate vehicle devices, such as horns, in the associated vehicles to indicate an alarm condition. The ignition system of each vehicle is enabled for operation by the insertion of a transmitter in a receptacle associated with the ignition system. The removal of the transmitter from the associated receptacle disables the associated ignition system. The placement of the transmitter in a receptacle disables the transmitter and the removal of the transmitter from the associated receptacle enables the transmitter.
5 Claims, 6 Drawing Figures
