US3753340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mower with easy discharge grass catcher
Assignee: Mathews Co
•
Filing: 1972-01-10
•
Granted: 1973-08-21
•
Expires: 1992-01-10
Abstract
Abstract A flail type rotor assembly is journalled in side plates. A housing over the rotor was an outlet leading into a vertical chute formed by a front wall and a baffle. A grass catching receptacle is pivotally suspended from the upper part of the side walls. The upper part of the front wall is curved to deflect grass clippings rearwardly into the receptacle. By rocking the receptacle, the bottom edge moves away from the housing to empty itself. A gate for the outlet may be closed for alternative operation in which the clippings are returned to the ground. The front wall is cut away in front of the gate. Paddles on the drum help create the air stream which blows the clippings upwardly.
Inventors
- 👤 B Mathews
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:19
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/06; A01D43/063
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
183 words
A mower comprising a mobile frame including side walls, a flail type rotor assembly journalled in said side walls for rotation about a transverse axis and arranged to discharge grass clippings upwardly in a substantially vertical direction, a housing for said rotor assembly having an outlet located above said rotor assembly, means providing a chute extending upwardly from said outlet to receive the grass clippings discharged vertically therefrom, a grass catching receptacle having an upper portion located to receive grass clippings from said chute and being pivotally suspended from said side walls at a point forwardly and above the center of gravity of said receptacle, said chute providing means including a front wall and a rearwardly spaced baffle, said baffle and the rear portion of said housing cooperating with said receptacle to provide an enclosed space for holding said grass clippings, and said receptacle including a bottom front edge portion which normally engages said rear housing portion, whereby said receptacle may be rocked so that said bottom front edge portion moves rearwardly away from said rear housing portion to provide a discharge opening.
Claim 2
Dependent Claim
183 words
A mower comprising a mobile frame including side walls, a flail type rotor assembly journalled in said side walls for rotation about a transverse axis and arranged to discharge grass clippings upwardly in a substantially vertical direction, a housing for said rotor assembly having an outlet located above said rotor assembly, means providing a chute extending upwardly from said outlet to receive the grass clippings discharged vertically therefrom, a grass catching receptacle having an upper portion located to receive grass clippings from said chute and being pivotally suspended from said side walls at a point forwardly and above the center of gravity of said receptacle, said chute providing means including a front wall and a rearwardly spaced baffle, said baffle and the rear portion of said housing cooperating with said receptacle to provide an enclosed space for holding said grass clippings, and said receptacle including a bottom front edge portion which normally engages said rear housing portion, whereby said receptacle may be rocked so that said bottom front edge portion moves rearwardly away from said rear housing portion to provide a discharge opening.
Claim 3
Dependent Claim
63 words
A mower as claimed in claim 1 in which said baffle and said rear housing portion provides the front wall of said enclosed space with said bottom front edge portion of said receptacle being free of any substantial vertical wall portion whereby rocking movement of said receptacle will not require any substantial horizontal or upward displacement of the clippings adjacent said discharge opening.
Claim 4
Dependent Claim
26 words
A mower as claimed in claim 2 in which said receptacle has a bottom wall which is inclined forwardly and downwardly toward said front edge portion.
Claim 5
Dependent Claim
21 words
A mower as claimed in claim 2 in which the height of said receptacle is substantially greater than its front-to-back dimension.
Claim 6
Dependent Claim
40 words
A mower as claimed in claim 1 which includes a gate for said outlet, said gate being normally open and when in closed position causing said grass clippings to pass beneath said rear housing portion for discharge onto the ground.
Claim 7
Dependent Claim
16 words
A mower as claimed in claim 5 including a deflector plate adjustably mounted on said baffle.
Claim 8
Dependent Claim
28 words
A mower as claimed in claim 5 in which said receptacle is removably mounted on said side walls to permit removal of same when said gate is closed.
Claim 9
Dependent Claim
31 words
A mower as claimed in claim 5 in which said front wall has an opening at its lower end, said gate when in open position overlying said opening and closing same.
Claim 10
Dependent Claim
37 words
A mower as claimed in claim 1 which includes a draw bar for connection to a tractor, and a rope connected to said upper receptacle portion for rocking same from a point Forwardly of said draw bar.
Claim 11
Dependent Claim
71 words
A mower as claimed in claim 1 in which said flail type rotor assembly includes a plurality of blades pivotally mounted on said drum, a plurality of non-cutter paddle elements pivotally mounted on said drum for increasing the force of the air stream provided by said rotor assembly, said air stream passing through said chute-providing means and carrying said grass clippings entrained therein upwardly into said upper portion of said receptacle.
Claim 12
Dependent Claim
33 words
A mower as claimed in claim 4 in which said front wall extends upwardly beyond the upper edge of said baffle and has a curved upper portion for deflecting said grass clippings rearwardly.
References Cited (Backward Citations)
US283415A
Cited
US439806A
Cited
US601008A
Cited
US2920433A
Cited
US2989833A
Cited
US2999346A
Cited
US3138909A
Cited
US3135080A
Cited
US3493987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |