US3881078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
De-acceleration switch operable by release of force on accelerator pedal
Assignee: Lee Raymond Organization Inc
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Filing: 1974-01-15
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Granted: 1975-04-29
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Expires: 1994-01-15
Abstract
Abstract A motion oriented electrical switch which may be employed to activate an exterior warning light on the rear of an automobile to indicate when de-acceleration of the automobile occurs. The switch is in bearing contact with linkage of the accelerator pedal of the vehicle and is fitted with NC electrical contact members held together by frictional engagement with a coil spring. The switch operator rod is in frictional engagement with a slidable member that permits the operator rod to move freely in the direction which maintains the switch contacts in the open position, but the frictional engagement of the slidable member to the operator rod causes the slidable member to bear against, and close the contact points of the switch, once the operator rod moves under the force of the coiled spring in the closing direction, with the switch contacts remaining closed until direction of motion of the operator rod is reversed.
Inventors
- 👤 Paul J Kazanecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44; B60Q1/441; H; H01; H01H; H01H13/00; H01H13/02; H01H13/12; H01H13/14; H01H13/16; H01H3/00; H01H3/32; H01H3/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
423 words
An electrical switch which indicates direction of motion of the switch operator rod comprising: a switch housing fitted with two spaced bearing members which are fixed with relation to each other and to the housing, a switch operator rod which is slidably mounted to both spaced bearing members so as to slide freely with relation to both spaced bearing members, said operator rod extending beyond the housing in at least one direction, a pressure member which is mounted on the operator rod between the two spaced bearing members, said pressure member being in frictional engagement with the operator rod so as to be capable of sliding under frictional resistance with relation to the operator rod, and switch contacts located on one of the bearing members which is of insulated material, so that said contacts are joined to each other when subjected to bearing pressure by the pressure member, said switch contacts being free of electrical contact with each other when not under bearing pressure of the pressure member, such that motion of the operator rod in one axial direction will move the pressure member against the contacts to cause the switch contacts to close, with motion of the rod in the reverse direction moving the pressure member away from the contacts causing the switch contacts to open, with said operator rod free to continue to move further in either direction in frictional sliding engagement with the pressure member after setting the switch contacts, said switch contacts including a fixed contact mounted in one of the spaced bearing members so as to be exposed along the plane of the interior face of said bearing member, and a spring contact member mounted on the interior face of said bearing member, said spring contact member shaped in the general form of a circular washer with one section of the lip of said contact member bent away from the interior face of the bearing member, said spring contact member oriented with respect to the fixed contact member so that the lip of the spring contact member is aligned in the axial direction of the operator rod with the exposed section of the fixed contact member, such that axial pressure of the pressure member against the bent lip of the spring contact member in the direction of the fixed contact member serves to bend the lip to engagement with the fixed contact member, with said lip springing away from engagement with the fixed contact member when the spring contact member is free of engagement with the pressure member.
Claim 2
Dependent Claim
423 words
An electrical switch which indicates direction of motion of the switch operator rod comprising: a switch housing fitted with two spaced bearing members which are fixed with relation to each other and to the housing, a switch operator rod which is slidably mounted to both spaced bearing members so as to slide freely with relation to both spaced bearing members, said operator rod extending beyond the housing in at least one direction, a pressure member which is mounted on the operator rod between the two spaced bearing members, said pressure member being in frictional engagement with the operator rod so as to be capable of sliding under frictional resistance with relation to the operator rod, and switch contacts located on one of the bearing members which is of insulated material, so that said contacts are joined to each other when subjected to bearing pressure by the pressure member, said switch contacts being free of electrical contact with each other when not under bearing pressure of the pressure member, such that motion of the operator rod in one axial direction will move the pressure member against the contacts to cause the switch contacts to close, with motion of the rod in the reverse direction moving the pressure member away from the contacts causing the switch contacts to open, with said operator rod free to continue to move further in either direction in frictional sliding engagement with the pressure member after setting the switch contacts, said switch contacts including a fixed contact mounted in one of the spaced bearing members so as to be exposed along the plane of the interior face of said bearing member, and a spring contact member mounted on the interior face of said bearing member, said spring contact member shaped in the general form of a circular washer with one section of the lip of said contact member bent away from the interior face of the bearing member, said spring contact member oriented with respect to the fixed contact member so that the lip of the spring contact member is aligned in the axial direction of the operator rod with the exposed section of the fixed contact member, such that axial pressure of the pressure member against the bent lip of the spring contact member in the direction of the fixed contact member serves to bend the lip to engagement with the fixed contact member, with said lip springing away from engagement with the fixed contact member when the spring contact member is free of engagement with the pressure member.
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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) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |