Abstract An alarm system for the gasoline supply of a motor vehicle is described wherein an alarm is triggered when access to the gasoline supply for the motor vehicle is attempted. The system is operated preferably utilizing the motor vehicle horn and the vehicle electrical storage battery. The system is operated entirely independent of the motor vehicle ignition system and can be activated or deactivated independent of said ignition system. An alarm is sounded by means of the motor vehicle horn when the access panel leading to the gasoline storage tank is moved, in the opening direction, a predetermined distance from the closed position, thereby completing an electrical circuit through a mercury switch which affects the sounding of the motor vehicle horn.
Inventors
👤 Louis Alphonso Hager
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 06:19
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/1001
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
An alarm system for a motor vehicle gasoline supply tank comprising a mercury contact switch, electrical connection between the motor vehicle horn, an electrical energy supply and said mercury switch means for mounting said mercury switch in an angled position on a movable access panel to said gasoline supply tank, said mounting being positioned such that the movement of said panel causes the tilting of said mercury switch to complete an electric circuit between the electrical supply and horn thereby sounding said horn.
Claim 2
Dependent Claim
83 words
An alarm system for a motor vehicle gasoline supply tank comprising a mercury contact switch, electrical connection between the motor vehicle horn, an electrical energy supply and said mercury switch means for mounting said mercury switch in an angled position on a movable access panel to said gasoline supply tank, said mounting being positioned such that the movement of said panel causes the tilting of said mercury switch to complete an electric circuit between the electrical supply and horn thereby sounding said horn.
Claim 3
Dependent Claim
21 words
The alarm system of claim 1 wherein the electric circuit has switch means to interrupt said circuit and deactivate the system.
Claim 4
Dependent Claim
28 words
The alarm system of claim 1 wherein the gasoline supply has access behind a hinged license mounting plate and said mercury contact switch is mounted on said plate.
Claim 5
Dependent Claim
37 words
The alarm system of claim 1 wherein the gasoline supply has access behind a hinged cover plate and said mercury contact switch is mounted so as to tilt into an electrical connection on opening said cover plate.
Claim 6
Dependent Claim
38 words
The alarm system of claim 1 wherein the mercury switch is mounted at an angle from the vertical so as to complete an electrical connection on moving said access panel more than about 20* toward the open position.
Claim 7
Dependent Claim
17 words
The alarm system of claim 1 wherein the electrical system is independent of the vehicle ignition system.