US3795152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual lever control
Assignee: Caterpillar Inc
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Filing: 1972-08-17
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Granted: 1974-03-05
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Expires: 1992-08-17
Abstract
Abstract First and second handles are movably mounted on a stationary support. The first handle is connected to the control elements of first and second control valves whereas the second handle is connected to the control element of a third control valve. Movement of the first handle in a first direction will reciprocate the first control element whereas movement of the second handle in such direction is non-functional. Movement of the first and second handles in the second, transverse direction will simultaneously reciprocate the second and third elements, respectively. A pivoted latch selectively locks the two handles in their neutral conditions of operation and the second handle is frictionally held in a selected position by a pair of rubber bushings.
Inventors
- 👤 T Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:13
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G13/00; G05G13/02; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/569; Y10T70/5717; Y10T70/5721; Y10T70/5726; Y10T74/00; Y10T74/20; Y10T74/20012
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
137 words
A dual lever control comprising a stationary support, a first lever control including a first handle, first and second control valves respectively having first and second control elements movably mounted therein, and first linkage means interconnecting said first handle with each of said first and second control elements for moving said first control element in response to movement of said first handle in a first direction and for moving said second control element in response to movement of said first handle in a second direction transverse to said first direction, and a second lever control including a second handle, a third control having a third control element movably mounted therein, and second linkage means interconnecting said second handle with said third control element for moving said third control element in response to movement of said second handle.
Claim 2
Dependent Claim
137 words
A dual lever control comprising a stationary support, a first lever control including a first handle, first and second control valves respectively having first and second control elements movably mounted therein, and first linkage means interconnecting said first handle with each of said first and second control elements for moving said first control element in response to movement of said first handle in a first direction and for moving said second control element in response to movement of said first handle in a second direction transverse to said first direction, and a second lever control including a second handle, a third control having a third control element movably mounted therein, and second linkage means interconnecting said second handle with said third control element for moving said third control element in response to movement of said second handle.
Claim 3
Dependent Claim
29 words
The invention of claim 1 wherein said first and second handles are movably mounted on said support in close proximity to each other whereby they can be moved simultaneously.
Claim 4
Dependent Claim
22 words
The invention of claim 1 wherein said second handle is solely connected to said third control element by said second linkage means.
Claim 5
Dependent Claim
38 words
The invention of claim 3 wherein said second linkage means comprises a rod, pivotally mounted on said support, having its first end pivotally attached to said second handle and its second end connected to said third control element.
Claim 6
Dependent Claim
21 words
The invention of claim 1 further comprising locking means for selectively locking said first and second handles in a fixed position.
Claim 7
Dependent Claim
60 words
The invention of claim 5 wherein said locking means comprises a plate member pivotally mounted on said support, means forming a pair of slots in said plate member and a lug secured to each of said first and second handles and positioned thereon to be received in a respective one of said slots when said plate member is pivoted thereon.
Claim 8
Dependent Claim
23 words
The invention of claim 1 further comprising positioning means frictionally engaging said second handle for holding said second handle in a selected position.
Claim 9
Dependent Claim
45 words
The invention of claim 7 further comprising pivot means pivotally connecting said second handle to said second linkage means and wherein said positioning means comprises at least one resilient bushing in said pivot means frictionally engaged between said second handle and said second linkage means.
Claim 10
Dependent Claim
118 words
A lever control comprising a control valve having a control element movably mounted therein, a handle, linkage means interconnecting said handle with said control element for moving said control element upon movement of said handle in a first direction, means pivotally mounting said handle to said linkage means, including at least one resilient bushing therein for continuously frictionally engaging said handle to hold it in a selected position of operation upon manipulation thereof, for permitting said handle to move said control element upon movement of said handle in said first direction and for permitting only said handle to move relative to said linkage means upon movement of said handle in a second direction, transverse to said first direction.
Claim 11
Dependent Claim
118 words
A lever control comprising a control valve having a control element movably mounted therein, a handle, linkage means interconnecting said handle with said control element for moving said control element upon movement of said handle in a first direction, means pivotally mounting said handle to said linkage means, including at least one resilient bushing therein for continuously frictionally engaging said handle to hold it in a selected position of operation upon manipulation thereof, for permitting said handle to move said control element upon movement of said handle in said first direction and for permitting only said handle to move relative to said linkage means upon movement of said handle in a second direction, transverse to said first direction.
Claim 12
Dependent Claim
83 words
A lever control comprising a stationary support a control valve having a control element movably mounted therein, movable handle means operatively connected to said control element for selectively moving same, and locking means for selectively locking said handle to said support comprising a plate member pivotally mounted on said support, means forming at least one slot in said plate member and a lug secured to said handle and positioned thereon to be received in said slot when saId plate member is pivoted thereon.
Claim 13
Dependent Claim
83 words
A lever control comprising a stationary support a control valve having a control element movably mounted therein, movable handle means operatively connected to said control element for selectively moving same, and locking means for selectively locking said handle to said support comprising a plate member pivotally mounted on said support, means forming at least one slot in said plate member and a lug secured to said handle and positioned thereon to be received in said slot when saId plate member is pivoted thereon.
Claim 14
Dependent Claim
29 words
The invention of claim 10 further comprising a lug secured to said support to be received in said slot when said plate is pivoted to a storage position thereon.
Claim 15
Dependent Claim
73 words
A lever control comprising a control valve having a control element movably mounted therein, movable handle means operatively connected to said control element for selectively moving same, positioning means frictionally engaging said handle means for holding said handle means in a selected position of operation and pivot means pivotally mounting said handle means, said positioning means comprising at least one resilient bushing in said pivot means for continuously frictionally engaging said handle means.
Claim 16
Dependent Claim
73 words
A lever control comprising a control valve having a control element movably mounted therein, movable handle means operatively connected to said control element for selectively moving same, positioning means frictionally engaging said handle means for holding said handle means in a selected position of operation and pivot means pivotally mounting said handle means, said positioning means comprising at least one resilient bushing in said pivot means for continuously frictionally engaging said handle means.
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) | 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 |