US3584705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for mobile work platforms
Assignee: Individual
•
Filing: 1969-07-14
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Granted: 1971-06-15
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Expires: 1989-07-14
Abstract
Abstract A control system for mobile work platforms adapted elevationally to position a worker relative to workpieces such as trees in an orchard and the like with such a platform being mounted on a mobile chassis for elevational and rotational movement providing a plurality of flexible push-pull control cables extended between control levers on the platform and suitable control valves for the powered members on the chassis with the cables being capable of twisting within their own lengths to accommodate substantially 360* rotation but not continuous rotation of the platform relative to the chassis and a quick-change two-speed drive selector mechanism for the mobile chassis to adapt the mobile platform for operation under a variety of conditions.
Inventors
- 👤 Carl W Ruegg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:53
CPC Classifications
B; B66; B66F; B66F11/00; B66F11/04; B66F11/044
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
145 words
A control system, for a work platform having a mobile chassis comprising; an alternatively selectable two-speed chassis drive mechanism providing a drive motor; a chassis drive shaft; a pair of different sized driven members disposed in axially spaced relation on said drive shaft; means mounting said drive motor for axial sliding and limited rotational movement between alternate positions respectively aligned with said driven members; means interchangeably drivingly connecting said motor and said driven members; and overcenter locking means for releasably holding said drive motor in said alternate positions providing a pedestal mounted on said chassis in spaced relation to said drive motor; a lever pivotally mounted on said pedestal and an elongated link having rotatably invertible hooked ends releasably interconnecting said drive motor and the lever in said alternate motor positions in tensioning relation to said means drivingly connecting said motor and said driven members.
Claim 2
Dependent Claim
145 words
A control system, for a work platform having a mobile chassis comprising; an alternatively selectable two-speed chassis drive mechanism providing a drive motor; a chassis drive shaft; a pair of different sized driven members disposed in axially spaced relation on said drive shaft; means mounting said drive motor for axial sliding and limited rotational movement between alternate positions respectively aligned with said driven members; means interchangeably drivingly connecting said motor and said driven members; and overcenter locking means for releasably holding said drive motor in said alternate positions providing a pedestal mounted on said chassis in spaced relation to said drive motor; a lever pivotally mounted on said pedestal and an elongated link having rotatably invertible hooked ends releasably interconnecting said drive motor and the lever in said alternate motor positions in tensioning relation to said means drivingly connecting said motor and said driven members.
Claim 3
Dependent Claim
51 words
The control system of claim 1 in which said motor mounting means includes a connector plate having a pair of spaced openings for releasably interchangeably receiving said one of said hooked ends of said link, and an opening in said lever for releasably receiving said other hooked end of the link.
Claim 4
Dependent Claim
108 words
A multispeed drive mechanism comprising a support, a drive shaft mounted for rotation on said support, a plurality of driven members of individually distinctive sizes disposed in axially spaced relation on said drive shaft, a drive motor mounted on said support for limited axial sliding and rotational movement between selected positions individually respectively aligned with said driven members, means interchangeably drivingly connecting said drive motor and said driven members with which it is aligned, lock means mounted on the support releasably holding said drive motor in said selected positions, and reversible link means releasably interconnecting said drive motor and said lock means in each of said selected positions.
Claim 5
Dependent Claim
108 words
A multispeed drive mechanism comprising a support, a drive shaft mounted for rotation on said support, a plurality of driven members of individually distinctive sizes disposed in axially spaced relation on said drive shaft, a drive motor mounted on said support for limited axial sliding and rotational movement between selected positions individually respectively aligned with said driven members, means interchangeably drivingly connecting said drive motor and said driven members with which it is aligned, lock means mounted on the support releasably holding said drive motor in said selected positions, and reversible link means releasably interconnecting said drive motor and said lock means in each of said selected positions.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |