Patent US3908221A successfully refreshed from Google Patents.
US3908221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lawn sweeper and trailer
Assignee: Individual
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Filing: 1973-08-06
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Granted: 1975-09-30
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Expires: 1993-08-06
Abstract
Abstract A lawn sweeper and trailer are provided for towing behind a tractor. The sweeper has a rotary brush, and is supported by a pair of wheels. A trailer is connected to the sweeper, and includes a platform supported by a pair of rear wheels, a removable box or a pair of removable boxes being carried on the platform to receive leaves and debris. The forward part of the trailer platform on its upper surface is provided with upper and lower arms, between which is a tongue extending rearwardly from the sweeper; a vertical pin through the arms and tongues connects the sweeper and trailer. A caster wheel is carried beneath the forward trailer platform. Rearwardly of the brush, the sweeper has a rearwardly and upwardly inclined guide plate, supported on a support plate which is hinged to the forward end of a fixed plate of the sweeper to the rear of the brush; at this hinge there is a striker plate in juxtaposition with the brush. Front cover panels are hinged to the sweeper in spaced relation to the guide plates, and a pair of side panels define a channel with the guide plate and front cover panels, which latter may be transparent. Rearwardly of the side panels are flexible side guides mounted on the trailer. The caster wheel in an alternate embodiment may be mounted on the sweeper.
Inventors
- 👤 Daniel E Wolfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:22
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/02; E01H1/04; E01H1/045
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising flexible side guide means connected to said vehicle and said sweeper.
Claim 2
Dependent Claim
140 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising flexible side guide means connected to said vehicle and said sweeper.
Claim 3
Dependent Claim
20 words
The structure of claim 1, and further comprising a caster wheel secured beneath the platform remote from said support wheels.
Claim 4
Dependent Claim
32 words
The structure of claim 1, said connecting means comprising a yoke on the platform, a tongue extending from said sweeper, and a vertical pin extending through openings in said yoke and tongue.
Claim 5
Dependent Claim
217 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising an upwardly inclined guide plate extending from said brush means and inclined cover panel means spaced from and generally parallel to saId guide plate for providing an inclined channel for debris extending from said brush means toward said vehicle, said cover panel comprising a lower cover panel horizontally hinged at its lower edges, and an upper cover panel horizontally hinged to a brace above said lower cover panel, whereby said upper and lower cover panels may be opened to provide access to the interior of said debris passage.
Claim 6
Dependent Claim
217 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising an upwardly inclined guide plate extending from said brush means and inclined cover panel means spaced from and generally parallel to saId guide plate for providing an inclined channel for debris extending from said brush means toward said vehicle, said cover panel comprising a lower cover panel horizontally hinged at its lower edges, and an upper cover panel horizontally hinged to a brace above said lower cover panel, whereby said upper and lower cover panels may be opened to provide access to the interior of said debris passage.
Claim 7
Dependent Claim
27 words
The structure of claim 4, said last mentioned means further comprising a pair of generally vertical side panels bounding said inclined guide plate and cover panel means.
Claim 8
Dependent Claim
26 words
The structure of claim 5, wherein said guiding means further comprises flexible side guide means for extending said debris channel from said sweeper to said vehicle.
Claim 9
Dependent Claim
23 words
The structure of claim 6, said last mentioned means comprising a pair of flexible side panels connected to said vehicle and said sweeper.
Claim 10
Dependent Claim
22 words
The structure of claim 4, said cover panel means comprising transparent panels for permitting viewing of debris discharged by said brush means.
Claim 11
Dependent Claim
17 words
The structure of claim 1, wherein said connecting means is located at the front of said vehicle.
Claim 12
Dependent Claim
226 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising an upwardly inclined guide plate extending from said brush means and generally parallel inclined cover panel means spaced from said guide plate for providing an inclined channel for debris extending from said brush means toward said vehicle, said sweeper having a fixed plate extending rearwardly from said brush, a support plate hinged at its front edge to the front of said fixed plate and overlying said connecting means, said guide plate being carried by said support plate, whereby said support plate and guide plate may be swung on said hinge to provide access to said connecting means.
Claim 13
Dependent Claim
226 words
A lawn sweeper and articulated vehicle comprising: a lawn sweeper having a pair of laterally spaced wheels and rotatable sweeper brush means for discharging material upwardly and toward said vehicle, said vehicle receiving debris discharged by said sweeper and including a platform having a pair of support wheels, said platform being adapted to support removable receptacle means, means for connecting said vehicle to said sweeper for articulation on a vertical axis located substantially on the vertical median plane of each of said sweeper and vehicle, and means for guiding material discharged by said brush means to said platform when said vehicle is not in line with said sweeper as said vehicle articulates on said connecting means relative to said sweeper during turning movement of said sweeper and vehicle, comprising an upwardly inclined guide plate extending from said brush means and generally parallel inclined cover panel means spaced from said guide plate for providing an inclined channel for debris extending from said brush means toward said vehicle, said sweeper having a fixed plate extending rearwardly from said brush, a support plate hinged at its front edge to the front of said fixed plate and overlying said connecting means, said guide plate being carried by said support plate, whereby said support plate and guide plate may be swung on said hinge to provide access to said connecting means.
References Cited (Backward Citations)
US971661A
Cited
US865311A
Cited
US850005A
Cited
US1179548A
Cited
US1216969A
Cited
US2263722A
Cited
US2561500A
Cited
US2767414A
Cited
US3493987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |