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US3797211A Expired / Lapsed US ⏱️ 0.0 years remaining

Mowers

Assignee: TURNER ENG CO Ltd
•
Filing: 1972-06-13
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Granted: 1974-03-19
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Expires: 1992-06-13
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Abstract

Abstract A self-contained hydraulically operated mower assembly for detachable mounting on a tractor comprises a body which forms a hydraulic reservoir and which is provided with means for releasably mounting the body on the rear end of a tractor. A shaft has one end rotatably mounted on said body, and the other end is rotatably and releasably supported on a tractor forward of said body. A laterally-extending arm is fixed to said shaft adjacent to said other end of the shaft, and a cutter is pivoted to the arm for pivotal movement about an axis parallel to the shaft. A hydraulic motor drives the cutter, a first hydraulic ram maintains the shaft in a selected angular position relative to said body, and a second hydraulic ram maintains the cutter in a selected angular position relative to the arm.

Inventors

  • 👤 A Turner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 20:52
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/02; A01D34/03; A01D34/835; A01D34/86; A01D34/866

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 141 words
A self-contained hydraulically operated mower assembly for detachable mounting on a tractor, comprising a body which forms a hydraulic reservoir and which is provided with means for releasably mounting the body on the rear end of a tractor, a shaft which has one end rotatably mounted on said body, means for rotatably and releasably supporting the other end of the shaft on a tractor forward of said body, a laterally-extending arm fixed to said shaft adjacent to said other end of the shaft, a cutter pivoted to the arm for pivotal movement about an axis parallel to the shaft, a hydraulic motor for driving the cutter, a first hydraulic ram for maintaining the shaft in a selected angular position relative to said body, and a second hydraulic ram for maintaining the cutter in a selected angular position relative to the arm.
Claim 2
Dependent Claim 141 words
A self-contained hydraulically operated mower assembly for detachable mounting on a tractor, comprising a body which forms a hydraulic reservoir and which is provided with means for releasably mounting the body on the rear end of a tractor, a shaft which has one end rotatably mounted on said body, means for rotatably and releasably supporting the other end of the shaft on a tractor forward of said body, a laterally-extending arm fixed to said shaft adjacent to said other end of the shaft, a cutter pivoted to the arm for pivotal movement about an axis parallel to the shaft, a hydraulic motor for driving the cutter, a first hydraulic ram for maintaining the shaft in a selected angular position relative to said body, and a second hydraulic ram for maintaining the cutter in a selected angular position relative to the arm.
Claim 3
Dependent Claim 37 words
An assembly according to claim 1 wherein the first hydraulic ram is disposed within said reservoir and has a driving connection with a crank which is also disposed within the reservoir and is fixed to the shaft.
Claim 4
Dependent Claim 33 words
An assembly according to claim 1 wherein the means for releasably mounting the body on the rear end of a tractor comprises means for suspending the body from lift arms of the tractor.

References Cited (Backward Citations)

US2827746A Cited
US2976663A Cited
US3127940A Cited
US3641748A Cited
US3646733A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-03-18 1977-09-17 1978-03-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-03-18 1981-09-17 1982-03-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-03-18 1985-09-17 1986-03-19 $7700.00 Window Closed / Lapsed

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