US3795157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined transmission gear selector and engine speed control
Assignee: Caterpillar Inc
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Filing: 1972-08-21
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Granted: 1974-03-05
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Expires: 1992-08-21
Abstract
Abstract A hand-operated control assembly for accomplishing both transmission gear selection and engine speed control through a single control member or lever, gear selection being accomplished by pivotal movement of the lever and engine speed regulation being accomplished by rotation of the lever about its own axis. With the control lever being preferably movable in a conventional U-shaped pattern for gear selection, a relatively simple and novel interconnection is provided for coupling the single control lever with a transmission control selector rod and an engine speed control rod.
Inventors
- 👤 T Campbell
- 👤 M Chamberlain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:43
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/04; F16H59/06; B; B60; B60W; B60W30/00; B60W30/18; B60W30/18181; B60W2710/00; B60W2710/06; B60W2710/0644; B60W2710/10; B60W2710/1005; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20073; Y10T74/2014; Y10T74/20159
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
200 words
A combined transmission gear selector and engine speed control assembly, gear selection in forward and reverse directions being accomplished by longitudinal movement of a transmission control selector rod in respectively opposite directions from a neutral position, engine speed control being accomplished by longitudinal motion of an engine speed control rod, comprising an eloNgated control member movable in a U-shaped pattern for gear selection, the crossbar of the U representing neutral gear and the legs respectively representing forward and reverse directions of operation, a rotatable member secured to the transmission control selector rod, first and second levers effectively coupled to opposite ends of the rotatable member and pivoting upon a common axis transverse to the control member, yoke means secured to the control member by bearings allowing the control member to rotate about its own longitudinal axis and pivoting upon an axis generally perpendicular to the common axis of the levers and also transverse to the control member, the yoke means being selectively engaged with the respective levers by movement of the control member in the crossbar of the U-shaped pattern, and interconnecting means responsive to rotation of the control member about its axis for positioning the engine speed control rod.
Claim 2
Dependent Claim
200 words
A combined transmission gear selector and engine speed control assembly, gear selection in forward and reverse directions being accomplished by longitudinal movement of a transmission control selector rod in respectively opposite directions from a neutral position, engine speed control being accomplished by longitudinal motion of an engine speed control rod, comprising an eloNgated control member movable in a U-shaped pattern for gear selection, the crossbar of the U representing neutral gear and the legs respectively representing forward and reverse directions of operation, a rotatable member secured to the transmission control selector rod, first and second levers effectively coupled to opposite ends of the rotatable member and pivoting upon a common axis transverse to the control member, yoke means secured to the control member by bearings allowing the control member to rotate about its own longitudinal axis and pivoting upon an axis generally perpendicular to the common axis of the levers and also transverse to the control member, the yoke means being selectively engaged with the respective levers by movement of the control member in the crossbar of the U-shaped pattern, and interconnecting means responsive to rotation of the control member about its axis for positioning the engine speed control rod.
Claim 3
Dependent Claim
37 words
The combined control assembly of claim 1 wherein the interconnecting means comprises a lever secured to the control member and an elongated link pivotably secured to the lever and operatively connected with the engine speed control rod.
Claim 4
Dependent Claim
41 words
The combined control assembly of claim 2 wherein the lever is secured to the control member adjacent the two axes transverse to the control member, the elongated link being generally parallel with the common axis of the first and second levers.
References Cited (Backward Citations)
US1819111A
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US1953539A
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US2077838A
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US2257852A
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US3576240A
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US3626780A
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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) | 1977-03-04 | 1977-09-03 | 1978-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-04 | 1981-09-03 | 1982-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-04 | 1985-09-03 | 1986-03-05 | $7700.00 | Window Closed / Lapsed |