US4152950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential and push-pull control system
Assignee: VHC Inc FORMERLY KNOWN AS VARO Inc
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Filing: 1977-05-10
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Granted: 1979-05-08
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Expires: 1997-05-10
Abstract
Abstract A two cable differential and push-pull system uses both cables simultaneously to operate a controlled device. The two cables are tensioned together or pushed together, or one cable is tensioned while the other is pushed, to operate a single device. Controls which have used separate cables for separate functions use paired cables for the multiple functions, reducing stress on individual cables without increasing the number of cables in the installation. In the illustrated transmission control a differential motion, which includes pushing and pulling forces, is applied through the cables to select a rail. A coincident pushing or pulling force is applied through both cables to shift the rail.
Inventors
- 👤 William D. Langford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:19
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/26; F16H61/36; G; G05; G05G; G05G9/00; G05G9/02; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/20049; Y10T74/2014; Y10T74/20159; Y10T74/20201; Y10T74/20396; Y10T74/20402; Y10T74/2042
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
82 words
Differential push-pull control apparatus comprising a controlled device, plural push-pull links connected to the controlled device at spaced connections, support means connected to the device for supporting movement of the device in a first mode upon paired coincident movement of the links and movement of the device in a second mode upon differential relative movement of the links, and controlling means connected to the links remote from the controlled device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 2
Dependent Claim
82 words
Differential push-pull control apparatus comprising a controlled device, plural push-pull links connected to the controlled device at spaced connections, support means connected to the device for supporting movement of the device in a first mode upon paired coincident movement of the links and movement of the device in a second mode upon differential relative movement of the links, and controlling means connected to the links remote from the controlled device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 3
Dependent Claim
31 words
The apparatus of claim 1 wherein the controlling means comprise means connected to the links for selectively coincidentally pushing the links, coincidentally pulling the links, and differentially relatively moving the links.
Claim 4
Dependent Claim
26 words
The apparatus of claim 1 further comprising a transmission shifting assembly connected to the controlled device, the device positioned for selectively moving the transmission shifting assembly.
Claim 5
Dependent Claim
34 words
The apparatus of claim 1 further comprising a transmission connected to the controlled device, a transmission shifting assembly connected to the transmission, the device positioned for selectively engaging and moving the transmission shifting assembly.
Claim 6
Dependent Claim
39 words
The apparatus of claim 1 further comprising a transmission connected to the support means, pivot means, and controlled device, a transmission shifting assembly connected to the transmission, the device positioned for selectively engaging and moving the transmission shifting assembly.
Claim 7
Dependent Claim
12 words
The apparatus of claim 1 wherein the links are push-pull control cables.
Claim 8
Dependent Claim
68 words
The apparatus of claim 1 wherein the controlling means comprise a control means, outwardly extending arms on the control means at spaced connections and to the links, means connected to the control means for supporting movement of the beam both about a first axis and about a second axis transverse to the first axis, and a control arm connected to the means for selectively moving the control means.
Claim 9
Dependent Claim
87 words
A differential push-pull control apparatus comprising a controlled device, plural links connected to the controlled device at spaced connections, support means connected to the device for supporting translational movement of the device upon coincident movement of the links, pivot means connected to the support means and to the device for supporting rotational movement of the device upon differential relative movement of the links, and controlling means connected to the links remote from the controlled device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 10
Dependent Claim
87 words
A differential push-pull control apparatus comprising a controlled device, plural links connected to the controlled device at spaced connections, support means connected to the device for supporting translational movement of the device upon coincident movement of the links, pivot means connected to the support means and to the device for supporting rotational movement of the device upon differential relative movement of the links, and controlling means connected to the links remote from the controlled device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 11
Dependent Claim
31 words
The apparatus of claim 8 wherein the support means comprise sliding support means connected to the device for supporting translational sliding movement of the device upon coincident movement of the links.
Claim 12
Dependent Claim
31 words
The apparatus of claim 8 wherein the controlling means comprise means connected to the links for selectively coincidentally pushing the links, coincidentally pulling the links, and differentially relatively moving the links.
Claim 13
Dependent Claim
96 words
Differential push-pull control apparatus comprising a controlled device, plural links connected to the controlled device at spaced connections, a sliding support means connected to the device for supporting translational sliding movement of the device upon coincident movement of the links, pivot means connected to the sliding support means and to the controlled device for supporting turning of the controlled device upon differential relative movement of the links, and a controlling means connected to the links remote from the controlled device for selectively coincidentally pushing the links, coincidentally pulling the links and differentially relatively moving the links.
Claim 14
Dependent Claim
96 words
Differential push-pull control apparatus comprising a controlled device, plural links connected to the controlled device at spaced connections, a sliding support means connected to the device for supporting translational sliding movement of the device upon coincident movement of the links, pivot means connected to the sliding support means and to the controlled device for supporting turning of the controlled device upon differential relative movement of the links, and a controlling means connected to the links remote from the controlled device for selectively coincidentally pushing the links, coincidentally pulling the links and differentially relatively moving the links.
Claim 15
Dependent Claim
26 words
The apparatus of claim 8 further comprising a transmission shifting assembly connected to the controlled device, the device positioned for selectively moving the transmission shifting assembly.
Claim 16
Dependent Claim
34 words
The apparatus of claim 8 further comprising a transmission connected to the controlled device, a transmission shifting assembly connected to the transmission, the device positioned for selectively engaging and moving the transmission shifting assembly.
Claim 17
Dependent Claim
39 words
The apparatus of claim 8 further comprising a transmission connected to the support means, pivot means, and controlled device, a transmission shifting assembly connected to the transmission, the device positioned for selectively engaging and moving the transmission shifting assembly.
Claim 18
Dependent Claim
12 words
The apparatus of claim 8 wherein the links are push-pull control cables.
Claim 19
Dependent Claim
105 words
The apparatus of claim 8 further comprising a second controlled device, second plural links connected to the second controlled device at spaced connections, second support means connected to the second device for supporting translational movement of the second device upon coincident movement of the second links, second pivot means connected to the second support means and to the second device for supporting rotational movement of the second device upon differential relative movement of the second links, the controlling means further connected to the second links remove from the second controlled device for selectively coincidentally moving the second links and differentially relatively moving the second links.
Claim 20
Dependent Claim
64 words
The apparatus of claim 8 wherein the controlling means comprise a control beam, outwardly extending arms connected to the beam at spaced connections and to the links, means connected to the beam for supporting rotation of the beam both about an axis of the beam and about an axis transversely thereof, and a control arm connected to the beam for selectively rotating the beam.
Claim 21
Dependent Claim
29 words
The apparatus of claim 16 wherein the controlling means comprise means connected to the links and to the second links for differentially moving the second links and the links.
Claim 22
Dependent Claim
36 words
The apparatus of claim 16 wherein the controlling means comprise means connected to the links and to the second links for coincidentally pushing the links and second links, and coincidentally pulling the links and second links.
Claim 23
Dependent Claim
103 words
A differential push-pull control apparatus comprising first and second devices, plural push-pull links connected between the devices at spaced connections, support means connected to the first device for supporting translational movement of the first device in a first direction upon coincident movement of the links, means connected to the support means and to the first device for supporting movement of the first device in a direction transverse to the first direction upon differential relative movement of the links, and the second device connected to the links remote from the first device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 24
Dependent Claim
103 words
A differential push-pull control apparatus comprising first and second devices, plural push-pull links connected between the devices at spaced connections, support means connected to the first device for supporting translational movement of the first device in a first direction upon coincident movement of the links, means connected to the support means and to the first device for supporting movement of the first device in a direction transverse to the first direction upon differential relative movement of the links, and the second device connected to the links remote from the first device for selectively coincidentally moving the links and differentially relatively moving the links.
Claim 25
Dependent Claim
33 words
The apparatus of claim 20 wherein the support means comprise sliding support means connected to the first device for supporting translational sliding movement of the first device upon coincident movement of the links.
Claim 26
Dependent Claim
31 words
The apparatus of claim 20 wherein the second device comprise means connected to the links for selectively coincidentally pushing the links, coincidentally pulling the links, and differentially relatively moving the links.
Claim 27
Dependent Claim
59 words
Differential push-pull control apparatus of claim 20 wherein the support means is connected to the first device for supporting translational sliding movement of the first device upon coincident movement of the links, and pivot means connected to the support means and to the first device for supporting turning of the first device upon differential relative movement of the links.
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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) | 1982-05-07 | 1982-11-06 | 1983-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-07 | 1986-11-06 | 1987-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-07 | 1990-11-06 | 1991-05-08 | $7700.00 | Window Closed / Lapsed |