US3743802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elongate housing having outstanding protrusions for tiltable conductive fluid type ignition safety switch
Assignee: Individual
•
Filing: 1972-06-23
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Granted: 1973-07-03
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Expires: 1992-06-23
Abstract
Abstract An ignition safety switch for a vehicle to automatically open the ignition circuit upon a predetermined tilting or inclination of the vehicle, including an elongate hollow body having a pair of laterally outstanding hollow protrusions and an upstanding hollow protrusion, a pair of electrical conductors or electrodes extending from exteriorly of the body through the wall thereof and terminating in spaced proximity generally centrally between the several protrusions, and a conductive liquid in the hollow of the body and its protrusions serving to contact and close a circuit between the electrodes when the vehicle is generally horizontal and open the circuit when the vehicle is disposed at a predetermined inclination.
Inventors
- 👤 J Avenick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:20
CPC Classifications
H; H01; H01H; H01H29/00; H01H29/20; H01H29/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
188 words
An ignition safety switch for a vehicle, said switch comprisng an elongate hollow body, a pair of electrodes carried by said body each extending from the exterior of said body at respective opposite ends interiorly thereof and having terminal protions in adjacent spaced relation with respect to each other medially within said body, said body having a pair of medial opposite side portions adjacent to said terminal electrode portions projecting laterally outwardly to form interior hollow outstanding protrusions, the interior hollows of said outstanding protrusions facing toward said terminal electrode portions, said body having its upper side in the region of said terminal electrode portions projecting upwardly to form a hollow upstanding protrusion, the interior hollow of said upstanding protrusion facing generally downwardly toward said terminal electrode portions, said body with its outstanding and upstanding protrusions defining interiorly thereof a hermetically sealed chamber, and a quantity of conductive liquid in said chamber having a level sufficient to contact both said electrodes only when said body is generally horizontal, said liquid flowing into said protrusions when said body is tilted substantially from its horizontal disposition to open the swiTch.
Claim 2
Dependent Claim
188 words
An ignition safety switch for a vehicle, said switch comprisng an elongate hollow body, a pair of electrodes carried by said body each extending from the exterior of said body at respective opposite ends interiorly thereof and having terminal protions in adjacent spaced relation with respect to each other medially within said body, said body having a pair of medial opposite side portions adjacent to said terminal electrode portions projecting laterally outwardly to form interior hollow outstanding protrusions, the interior hollows of said outstanding protrusions facing toward said terminal electrode portions, said body having its upper side in the region of said terminal electrode portions projecting upwardly to form a hollow upstanding protrusion, the interior hollow of said upstanding protrusion facing generally downwardly toward said terminal electrode portions, said body with its outstanding and upstanding protrusions defining interiorly thereof a hermetically sealed chamber, and a quantity of conductive liquid in said chamber having a level sufficient to contact both said electrodes only when said body is generally horizontal, said liquid flowing into said protrusions when said body is tilted substantially from its horizontal disposition to open the swiTch.
Claim 3
Dependent Claim
32 words
An ignition safety switch according to claim 1, said electrodes each extending generally longitudinally inwardly through a respecive end of said body in general alignment with each other spaced within said body.
Claim 4
Dependent Claim
32 words
An ignition safety switch according to claim 2, said terminal electrode portions being located generally centrally between said pair of outstanding protrusions, for switch opening action upon lateral tilting in either direction.
Claim 5
Dependent Claim
30 words
An ignition safety switch according to claim 2, said upstanding protrusion being located directly over and facing downwardly toward said terminal electrode portions for switch opening action upon vehicle inversion.
Claim 6
Dependent Claim
18 words
An ignition safety switch according to claim 1, said body and its outstanding and upstanding protrusions being integral.
Claim 7
Dependent Claim
20 words
An ignition safety switch according to claim 5, said integral body and outstanding and upstanding protrusions being fabricated of glass.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |