US3800614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual lever control
Assignee: Deutz Allis Corp
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Filing: 1972-12-07
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Granted: 1974-04-02
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Expires: 1992-12-07
Abstract
Abstract A pair of levers pivotally mounted for pivotal movement about a common axis and interconnected by a ratchet means to incremently shift one lever by movement of the other lever operating the ratchet means.
Inventors
- 👤 W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:48
CPC Classifications
G; G05; G05G; G05G13/00; G05G2700/00; G05G2700/22; G05G2700/32; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555; Y10T74/1556; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20073; Y10T74/20079; Y10T74/20207; Y10T74/20213; Y10T74/21; Y10T74/2133; Y10T74/2136; Y10T74/214
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
A dual lever transmission shifting mechanism comprising, a shift lever having means for manually shifting a transmission through a sequence of gear ratios, an auxiliary lever for manually shifting said shift lever, means pivotally supporting said levers on a common axis, a clutching means connected between said levers engageable upon movement of said auxiliary lever in either of two directions including a clutching element on said auxiliary lever including means biasing said clutching element to a center position when said auxiliary lever is in a neutral position and biasing said clutch engaging element to clutch engaging positions when said auxiliary lever is shifted to either side of neutral, stop means limiting the movement of said auxiliary lever in either direction from the center position, resilient means connected to said auxiliary lever to normally return said auxiliary lever to the neutral position upon release of said auxiliary lever to thereby provide incremental shifting movement of said shift lever upon actuation of said auxiliary lever.
Claim 2
Dependent Claim
163 words
A dual lever transmission shifting mechanism comprising, a shift lever having means for manually shifting a transmission through a sequence of gear ratios, an auxiliary lever for manually shifting said shift lever, means pivotally supporting said levers on a common axis, a clutching means connected between said levers engageable upon movement of said auxiliary lever in either of two directions including a clutching element on said auxiliary lever including means biasing said clutching element to a center position when said auxiliary lever is in a neutral position and biasing said clutch engaging element to clutch engaging positions when said auxiliary lever is shifted to either side of neutral, stop means limiting the movement of said auxiliary lever in either direction from the center position, resilient means connected to said auxiliary lever to normally return said auxiliary lever to the neutral position upon release of said auxiliary lever to thereby provide incremental shifting movement of said shift lever upon actuation of said auxiliary lever.
Claim 3
Dependent Claim
36 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said clutching means includes a ratchet on said shift lever, said clutching element selectively engaging said ratchet for shifting of said shift lever.
Claim 4
Dependent Claim
41 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said stop means is integral with said means supporting said levers for limiting the forward and rearward movement of said auxiliary lever when said auxiliary lever is operated.
Claim 5
Dependent Claim
43 words
A dual lever transmission shifting mechanism is set forth in claim 1 wherein said clutching means includes a quadrant defining a ratchet connected to said shift lever, said clutching element defines a pawl carried on said auxiliary lever for selectively engaging said ratchet.
Claim 6
Dependent Claim
28 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said resilient means includes a spring biasing said auxiliary lever to a normally neutral position.
Claim 7
Dependent Claim
41 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said stop means includes a control panel defining a slot for receiving said auxiliary lever, means defining the ends of said slot to operate as said stop means.
Claim 8
Dependent Claim
44 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said resilient means includes a link pivotally connected to said auxiliary lever, a link supporting means, springs resiliently biasing said link to return said auxiliary lever to a normally neutral position.
Claim 9
Dependent Claim
69 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said clutching means includes a ratchet carried on said shift lever, said clutching element includes a pawl, means pivotally supporting said pawl on said auxiliary lever, a spring normally biasing said pawl to a centered position on said auxiliary lever for selectively engaging said pawl with said ratchet when said auxiliary lever is pivoted from neutral.
Claim 10
Dependent Claim
41 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said means pivotally supporting said levers on a common axis includes a shaft, a control console defining slots for receiving said levers permitting pivotal movement of said levers.
Claim 11
Dependent Claim
81 words
A dual lever transmission shifting mechanism as set forth in claim 1 wherein said means pivotally supporting said levers includes a pivotal support means supporting said levers for pivotal movement about a common axis in laterally spaced positions relative to each other, said clutching means includes a ratchet integral with said shift lever, said auxiliary lever includes pivotal supporting means for said clutching element for selectiveLy engaging said ratchet for rotating said shift lever sequentially upon pivotally moving said auxiliary lever.
References Cited (Backward Citations)
US3665775A
Cited
US3728908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |