Patent US3797880A successfully refreshed from Google Patents.
Patent US3921373A successfully refreshed from Google Patents.
US3921373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power rake
Assignee: Cushman Inc
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Filing: 1974-09-13
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Granted: 1975-11-25
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Expires: 1994-09-13
Abstract
Abstract Disclosed herein is a power rake comprising a housing supported by front and rear wheels for travel over the ground and including a top wall and spaced side walls, a handle extending from the housing and including a portion adapted to be gripped by an operator to propel and guide the rake over the ground, a thatching reel including a plurality of thatching blades and supported in the housing for rotation of the blades in respective vertical paths, a drive for rotating the reel so that, adjacent to the ground, the blades travel in the direction opposite to the intended direction of travel, and a baffle extending downwardly and forwardly between the side walls from behind the reel and terminating adjacent to the periphery of the path of the blades.
Inventors
- 👤 Robert M Rubin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:44
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/10; E01H1/105; E01H1/106; A; A01; A01B; A01B45/00; A01B45/02; A01B45/026; A01G; A01G20/00; A01G20/30
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
A power rake comprising a housing including a top wall, spaced side walls, and means supporting said housing for travel over the ground, a thatching reel including a plurality of thatching blades, means supporting said thatching reel in said housing for rotation of said blades in respective vertical paths, means for rotating said reel so that, adjacent to the ground, said blades travel in the direction opposite to the intended direction of travel, and baffle means extending downwardly and forwardly between said side walls from behind said reel and terminating adjacent to the periphery of the path of said blades for substantially reducing accumulation within said housing of thatch cut by said blades and discharged therefrom.
Claim 2
Dependent Claim
116 words
A power rake comprising a housing including a top wall, spaced side walls, and means supporting said housing for travel over the ground, a thatching reel including a plurality of thatching blades, means supporting said thatching reel in said housing for rotation of said blades in respective vertical paths, means for rotating said reel so that, adjacent to the ground, said blades travel in the direction opposite to the intended direction of travel, and baffle means extending downwardly and forwardly between said side walls from behind said reel and terminating adjacent to the periphery of the path of said blades for substantially reducing accumulation within said housing of thatch cut by said blades and discharged therefrom.
Claim 3
Dependent Claim
34 words
A power rake in accordance with claim 1 wherein said baffle terminates in the area between about 1 o''clock and 3 o''clock relative to the axis of reel rotation when seen from the side.
Claim 4
Dependent Claim
66 words
A power rake in accordance with claim 1 and further including a guard having a width substantially equal to the distance between said side walls and having a forward portion and a rearward portion, and means pivotally mounting said forward guard portion to said housing with said forward guard portion extending to adjacent said baffle and with said rearward guard portion extending to adjacent the ground.
Claim 5
Dependent Claim
34 words
A power rake in accordance with claim 3 wherein said forward guard portion in fore and aft section, is downwardly concave and said rearward guard portion, in fore and aft section, is upwardly concave.
Claim 6
Dependent Claim
19 words
A power rake in accordance with claim 3 wherein saiD forward guard portion extends approximately tangentially to said baffle.
Claim 7
Dependent Claim
85 words
A power rake in accordance with claim 1 and further including a thatch catcher detachably connected to said housing and extending rearwardly therefrom, and a member mounted on said housing and extending between said side walls and rearwardly from said baffle for pivotal movement between a first position located in adjacent relation to the ground when said catcher is detached from said housing and a second position located, when said catcher is connected to said housing, in bridging relation between said housing and said catcher.
Claim 8
Dependent Claim
39 words
A power rake in accordance with claim 6 wherein said catcher includes, adjacent to the bottom of the part adjacent to said housing, a deflector extending upwardly and rearwardly and in downwardly spaced, generally parallel relation to said baffle.
Claim 9
Dependent Claim
43 words
A power rake in accordance with claim 7 wherein said side walls extend rearwardly beyond said top wall and said catcher is releasably connected to said side walls and includes a bottom wall having a forwardly extending portion located between said side walls.
Claim 10
Dependent Claim
40 words
A power rake in accordance with claim 8 wherein said deflector is located between said side walls and wherein said side walls, said deflector, said baffle, and said member define a thatch discharge passageway between said housing and said catcher.
Claim 11
Dependent Claim
25 words
A power rake in accordance with claim 6 and further including means on said member supporting the top of the adjacent part of said catcher.
References Cited (Backward Citations)
US2194297A
Cited
US2525090A
Cited
US2505576A
Cited
US2520488A
Cited
US2755092A
Cited
US3564823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |