Patent US3922745A successfully refreshed from Google Patents.
US3922745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Broom device
Assignee: Elgin Sweeping Services Inc
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Filing: 1974-02-14
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Granted: 1975-12-02
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Expires: 1994-02-14
Abstract
Abstract An improved broom device for a vehicle having a broom pivotably supporting a member such as a scoop which device comprises a broom mounted on the end of a drive shaft, a structure rotatably supporting the shaft and detachably mounted on the side of the bucket and a hydraulic motor mounted on the supporting structure and connected by conduits to a hydraulic control device disposed at the operating position of the vehicle. The supporting structure preferably includes means for adjusting the orientation of the shaft in a plane extending perpendicular to the side of the bucket so that adjustments in the supporting structure along with pivoting of the bucket on the boom structure can vary the cant and pitch of the broom as the bucket is raised or lowered to enable sweeping surfaces at various elevations up to 8 feet above the surface supporting the vehicle.
Inventors
- 👤 Gerhard H Lehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:49
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/96; E02F3/962; E01; E01H; E01H1/00; E01H1/02; E01H1/05; E01H1/053; Y; Y10; Y10S; Y10S414/00; Y10S414/125
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
296 words
A broom device for use on a vehicle for sweeping surfaces which are located at different elevations relative to the surface on whiCh the vehicle is supported, the vehicle having a frame, a boom structure mounted for pivotal movement on the frame of the vehicle and having a first member pivotably mounted on a free end thereof, said boom structure including means to pivot the boom structure relative to the vehicle to raise and lower the first member and means for pivoting the first member about a pivot axis relative to the boom structure, said broom device comprising a broom mounted on an end of a drive shaft, said broom comprising a plurality of bristles terminating in a plane forming a sweeping surface extending substantially perpendicular to the drive shaft, means for rotating the drive shaft and broom and means attached to the first member for mounting the shaft for rotation, said means for mounting including a base attached to the first member and means for adjusting the orientation of the drive shaft relative to said base, said means for adjusting including an element supporting the means for rotating the drive shaft and having bearings for rotatably supporting said drive shaft, a second member supported on said base, a first arm extending from the second member and pivotably connected to the element, and an adjustable arm pivotably connected to the second member and attached to said element so that the raising and lowering of said first member by said boom structure enables sweeping surfaces located at different elevations relative to the surface on which the vehicle is supported and pivoting of said first member relative to said boom structure enables changing the angle of the sweeping surface of the broom relative to the surface being swept.
Claim 2
Dependent Claim
296 words
A broom device for use on a vehicle for sweeping surfaces which are located at different elevations relative to the surface on whiCh the vehicle is supported, the vehicle having a frame, a boom structure mounted for pivotal movement on the frame of the vehicle and having a first member pivotably mounted on a free end thereof, said boom structure including means to pivot the boom structure relative to the vehicle to raise and lower the first member and means for pivoting the first member about a pivot axis relative to the boom structure, said broom device comprising a broom mounted on an end of a drive shaft, said broom comprising a plurality of bristles terminating in a plane forming a sweeping surface extending substantially perpendicular to the drive shaft, means for rotating the drive shaft and broom and means attached to the first member for mounting the shaft for rotation, said means for mounting including a base attached to the first member and means for adjusting the orientation of the drive shaft relative to said base, said means for adjusting including an element supporting the means for rotating the drive shaft and having bearings for rotatably supporting said drive shaft, a second member supported on said base, a first arm extending from the second member and pivotably connected to the element, and an adjustable arm pivotably connected to the second member and attached to said element so that the raising and lowering of said first member by said boom structure enables sweeping surfaces located at different elevations relative to the surface on which the vehicle is supported and pivoting of said first member relative to said boom structure enables changing the angle of the sweeping surface of the broom relative to the surface being swept.
Claim 3
Dependent Claim
24 words
A broom device according to claim 1, wherein said mounting means further includes an adjustable brace extending from said element to the first member.
Claim 4
Dependent Claim
30 words
A broom device according to claim 1, wherein the vehicle has a hydraulic pump and wherein said means for rotating is a hydraulic motor connected by conduits to the pump.
Claim 5
Dependent Claim
187 words
A broom device for use on a vehicle for sweeping surfaces which are located at different elevations relative to the surface on which the vehicle is supported, the vehicle having a frame, a boom structure mounted for pivotal movement on the frame of the vehicle and having a scoop pivotably mounted on a free end thereof, said boom structure including means to pivot the boom structure relative to the vehicle to raise and lower the scoop and means for pivoting the scoop about a pivot axis relative to the boom structure, said broom device comprising a broom mounted on an end of a drive shaft, means attached to the scoop for mounting the drive shaft for rotation and means supported on the mounting means for rotating the shaft and broom so that the raising and lowering of said scoop by said boom structure enables sweeping surfaces located at different elevations relative to the surface on which the vehicle is supported and pivoting of said scoop relative to said boom structure enables changing the angle of the sweeping surface of the broom relative to the surface being swept.
Claim 6
Dependent Claim
187 words
A broom device for use on a vehicle for sweeping surfaces which are located at different elevations relative to the surface on which the vehicle is supported, the vehicle having a frame, a boom structure mounted for pivotal movement on the frame of the vehicle and having a scoop pivotably mounted on a free end thereof, said boom structure including means to pivot the boom structure relative to the vehicle to raise and lower the scoop and means for pivoting the scoop about a pivot axis relative to the boom structure, said broom device comprising a broom mounted on an end of a drive shaft, means attached to the scoop for mounting the drive shaft for rotation and means supported on the mounting means for rotating the shaft and broom so that the raising and lowering of said scoop by said boom structure enables sweeping surfaces located at different elevations relative to the surface on which the vehicle is supported and pivoting of said scoop relative to said boom structure enables changing the angle of the sweeping surface of the broom relative to the surface being swept.
Claim 7
Dependent Claim
65 words
A broom device according to claim 4, wherein the broom comprises a plurality of bristles terminating in a plane forming the sweeping surface and extending substantially perpendicular to the drive shaft and wherein the mounting means includes a base attached to a side of the scoop and means for adjusting the orientation of the drive shaft relative to the base and side of the scoop.
Claim 8
Dependent Claim
42 words
A broom device according to claim 5, wherein the vehicle has means for providing a hydraulic fluid under pressure, and said means for rotating the broom comprises a hydraulic motor connected to conduits to the means for providing hydraulic fluid under pressure.
Claim 9
Dependent Claim
68 words
A broom device according to claim 6, wherein said means for providing hydraulic fluid is a two-stage pump having a low output discharge and a high output discharge, said low output discharge being connected by said conduits to the hydraulic motor and said high output discharge being connected to the means to pivot thE boom structure and the means for pivoting the scoop relative to the boom structure.
Claim 10
Dependent Claim
110 words
A broom device according to claim 7, wherein the means for adjusting includes a second member detachably mounted on said base, an element supporting the hydraulic motor and having bearings for rotatably supporting said shaft, a first arm pivotably connected to the element and connected to said second member, an adjustable arm pivotably connected to said element and pivotably connected to said second member, and an adjustable brace extending from the element and detachably connected to the side of the scoop by a pivotable connection so that when the broom device is not in use, the broom, motor and adjusting means are easily removed from the side of the scoop.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |