Patent US4499963A successfully refreshed from Google Patents.
US4499963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustment means for operator controls
Assignee: FMC Corp
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Filing: 1984-07-11
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Granted: 1985-02-19
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Expires: 2004-07-11
Abstract
Abstract An improved adjustment means for Operator controls in a crane having a sub-floor having a plurality of fore and aft slots with both extending therethrough to engage the floor and support the sub-floor. A pair of inner pedals are mounted on the sub-floor and operate valves carried by the sub-floor. A pair of outer pedals are also mounted on the floor and are connected by bowden cables to a control shaft mounted on the floor.
Inventors
- 👤 Allen L. Liston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:51
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/30; G05G1/40; G05G1/405; B; B66; B66C; B66C13/00; B66C13/52; B66C13/54; B66C13/56; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20528
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
179 words
In a crane having an engine, an operators cab with a floor, an engine control shaft, the angular position of which controls the engine's output, rotatably mounted on the underneath side of said floor, and a seat mounted on said floor for fore and aft movement, the improvement comprising: a subfloor suspended below said floor for fore and aft movement relative thereto; a pair of outboard pedals pivotally mounted on said subfloor for independent control of said engine; a pair of levers affixed to each end of said engine control shaft; a pair of flexible control cables, each of which is operatively connected to one of said outboard pedals and to one of said levers; a pair of inboard brake pedals pivotally mounted on said subfloor; a pair of independent master brake cylinders, each having a moveable spool, attached to said subfloor; a pair of rods, each of which is operatively connected between one of said inboard brake pedals and the spool of one of said brake cylinders; and means for selectively positioning said subfloor relative to said floor.
Claim 2
Dependent Claim
179 words
In a crane having an engine, an operators cab with a floor, an engine control shaft, the angular position of which controls the engine's output, rotatably mounted on the underneath side of said floor, and a seat mounted on said floor for fore and aft movement, the improvement comprising: a subfloor suspended below said floor for fore and aft movement relative thereto; a pair of outboard pedals pivotally mounted on said subfloor for independent control of said engine; a pair of levers affixed to each end of said engine control shaft; a pair of flexible control cables, each of which is operatively connected to one of said outboard pedals and to one of said levers; a pair of inboard brake pedals pivotally mounted on said subfloor; a pair of independent master brake cylinders, each having a moveable spool, attached to said subfloor; a pair of rods, each of which is operatively connected between one of said inboard brake pedals and the spool of one of said brake cylinders; and means for selectively positioning said subfloor relative to said floor.
Claim 3
Dependent Claim
56 words
The invention according to claim 1 and further comprising: a bell crank pivotally mounted on the underside of said floor; a link pivotally connected between said bell crank and one of said levers; an engine control handle mounted in said cab; and a third flexible control cable operatively connected to said handle and said bell crank.
Claim 4
Dependent Claim
123 words
The invention according to claim 2, wherein said means for selectively positioning said subfloor relative to said floor comprises: a handle secured to said subfloor between said inboard pedals to facilitate fore and aft movement thereof; a plurality of holes of uniform diameter arranged in two parallel rows extending in a fore and aft direction in said subfloor, the holes in one row being positioned midway the holes in the other row; a transverse slot in said floor spanning said rows and having a width in the fore and aft direction substantially equal to the diameter of said holes; and a latching mechanism capable of selectively engaging one of said holes through said transverse slot to lock said subfloor relative to said floor.
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) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |