US4140027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever mechanism
Assignee: Caterpillar Inc
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Filing: 1977-07-13
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Granted: 1979-02-20
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Expires: 1997-07-13
Abstract
Abstract A single control lever mounted on a pivot assembly is movable in an arc in first and second directions in one plane to impart motion through a cam arrangement to a first push rod and cable assembly so that the first push rod and cable assembly moves proportionally to the movement of the lever in either the first or second direction. The same control lever is movable in an arc in third and fourth directions in a second plane normal to the first plane to impart longitudinal motion to a second push rod and cable assembly affixed to the pivot assembly. A resilient means is incorporated in the pivot assembly to resiliently bias the single control lever to a neutral position in the first plane. A gating plate is affixed to the bracket supporting the pivot assembly and limits the travel of the single control lever to a predetermined path.
Inventors
- 👤 Ronald E. Wineburner
- 👤 Norman R. Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
172 words
A lever mechanism comprising: a bracket; a lever operatively mounted on said bracket for movement relative to said bracket in first and second generally normally oriented planes; cam means associated with said lever for movement therewith in said first plane; a first apparatus associated with said bracket for reciprocal movement relative said bracket; a cam follower lever pivotally connected to said bracket and associated with said first apparatus; a cam follower mounted on said lever and responsive to said cam means for reciprocally moving said first apparatus in response to movement of said lever in said first plane, said cam follower mounted on said cam follower lever intermediate the connection of said cam follower lever with said bracket and the association of said cam follower lever with said first apparatus; a second apparatus associated with said bracket and responsive to movement of said lever in the second plane for reciprocal movement independent of said first apparatus; and resilient means for biasing said lever to a center neutral position in said first plane.
Claim 2
Dependent Claim
172 words
A lever mechanism comprising: a bracket; a lever operatively mounted on said bracket for movement relative to said bracket in first and second generally normally oriented planes; cam means associated with said lever for movement therewith in said first plane; a first apparatus associated with said bracket for reciprocal movement relative said bracket; a cam follower lever pivotally connected to said bracket and associated with said first apparatus; a cam follower mounted on said lever and responsive to said cam means for reciprocally moving said first apparatus in response to movement of said lever in said first plane, said cam follower mounted on said cam follower lever intermediate the connection of said cam follower lever with said bracket and the association of said cam follower lever with said first apparatus; a second apparatus associated with said bracket and responsive to movement of said lever in the second plane for reciprocal movement independent of said first apparatus; and resilient means for biasing said lever to a center neutral position in said first plane.
Claim 3
Dependent Claim
21 words
The lever mechanism of claim 1 further comprising a slotted gating plate circumjacent the lever for limiting movement of the lever.
Claim 4
Dependent Claim
20 words
The lever mechanism of claim 2 further comprising means for mounting said lever for swinging movement relative to said bracket.
Claim 5
Dependent Claim
83 words
The lever mechanism of claim 3 wherein the means for mounting the lever comprises a first member pivotally associated with the bracket for rotation about a first axis in the first plane relative said bracket and a second member pivotally mounted on said first member for rotation about a second axis normal to said first axis and lying in the second plane; and wherein the cam means is affixed to said first member and the second apparatus is associated with said second member.
Claim 6
Dependent Claim
16 words
The lever mechanism of claim 3 wherein the lever is fixedly associated with the second member.
Claim 7
Dependent Claim
30 words
The lever mechanism of claim 5 wherein the first member is bifurcated and further wherein said second member is mounted for rotation between the bifurcated portions of said first member.
Claim 8
Dependent Claim
25 words
The lever mechanism of claim 4 wherein the cam means comprises a plate defining a cam slot, said plate integrally formed with the first member.
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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |