US3768328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-movement single lever control
Assignee: Caterpillar Inc
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Filing: 1972-04-10
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Granted: 1973-10-30
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Expires: 1992-04-10
Abstract
Abstract A single lever control comprises a tubular bellcrank pivotally mounted on a stationary support and a handle pivotally mounted to a first arm of the bellcrank. A connecting rod is universally connected to the handle and extends through the bellcrank for attachment to the stem of a first control valve. A second arm of the bellcrank is pivotally connected to the stem of a second control valve whereby the handle may be actuated to selectively actuate the first control valve and/or the second control valve.
Inventors
- 👤 T Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:44
CPC Classifications
G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G2009/04703; G05G2009/04714; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87056; Y10T137/87088; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/2014; Y10T74/20159; Y10T74/20201
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
118 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, a connecting rod pivotally connected to said handle and extending in the general direction of said first axis and first and second control valves each having a control element reciprocally mounted therein, first linkage means pivotally interconnecting said connecting rod and the control element of said first control valve and second linkage means pivotally interconnecting said second arm and the control element of said second control valve.
Claim 2
Dependent Claim
118 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, a connecting rod pivotally connected to said handle and extending in the general direction of said first axis and first and second control valves each having a control element reciprocally mounted therein, first linkage means pivotally interconnecting said connecting rod and the control element of said first control valve and second linkage means pivotally interconnecting said second arm and the control element of said second control valve.
Claim 3
Dependent Claim
28 words
The invention of claim 1 wherein said first and second arms are longitudinally spaced on said bellcrank in at least approximate perpendicular relationship with respect to each other.
Claim 4
Dependent Claim
23 words
The invention of claim 2 wherein said first and second arms extend in the general direction of said first and second axes, respectively.
Claim 5
Dependent Claim
16 words
The invention of claim 1 wherein said bellcrank is tubular and said connecting rod extends therethrough.
Claim 6
Dependent Claim
43 words
The invention of claim 1 wherein said handle comprises a clevis pivotally connected to said first arm, an extension cantilevered on said clevis to extend away therefrom in the general direction of said first axis and a hand lever secured to said extension.
Claim 7
Dependent Claim
53 words
The invention of claim 1 wherein said connecting rod is universally connected to said handle and wherein said first linkage means comprises a bellcrank pivotally mounted on said support and having first and second arms thereof pivotally connected to said connecting rod and to the control element of said first control valve, respectively.
Claim 8
Dependent Claim
30 words
The invention of claim 6 wherein said first linkage means further comprises a link pivotally interconnected between said last-mentioned second arm and the control eLement of said first control valve.
Claim 9
Dependent Claim
29 words
The invention of claim 1 wherein said second linkage means comprises a single link pivotally interconnected between said second arm and the control element of said second control valve.
Claim 10
Dependent Claim
105 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, and a connecting rod pivotally connected to said handle and extending in the general direction of said first axis, said first and second arms being longitudinally spaced on said bellcrank in at least approximately perpendicular relationship with respect to each other and extending in the general direction of said first and second axis, respectively.
Claim 11
Dependent Claim
105 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, and a connecting rod pivotally connected to said handle and extending in the general direction of said first axis, said first and second arms being longitudinally spaced on said bellcrank in at least approximately perpendicular relationship with respect to each other and extending in the general direction of said first and second axis, respectively.
Claim 12
Dependent Claim
74 words
A single lever control comprising a stationary support, a tubular bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, and a connecting rod pivotally connected to said handle and extending through said bellcrank in the general direction of said first axis.
Claim 13
Dependent Claim
74 words
A single lever control comprising a stationary support, a tubular bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, and a connecting rod pivotally connected to said handle and extending through said bellcrank in the general direction of said first axis.
Claim 14
Dependent Claim
107 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, said handle comprising a clevis pivotally connected to said first arm, an extension cantilevered on said clevis to extend away therefrom in the general direction of said first axis and a hand lever secured to said extension, and a connecting rod pivotally connected to said handle and extending in the general direction of said first axis.
Claim 15
Dependent Claim
107 words
A single lever control comprising a stationary support, a bellcrank, having first and second arms extending therefrom, pivotally mounted on said support for pivotal movement about a first axis, a handle pivotally mounted to said first arm for pivotal movement about a second axis disposed transversely relative to said first axis, said handle comprising a clevis pivotally connected to said first arm, an extension cantilevered on said clevis to extend away therefrom in the general direction of said first axis and a hand lever secured to said extension, and a connecting rod pivotally connected to said handle and extending in the general direction of said first axis.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |