Patent US4888845A successfully refreshed from Google Patents.
US4888845A
Expired / Lapsed
US
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Sweeping apparatus for railway ballast regulators
Assignee: RAILWAY TRACK-WORK Co
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Filing: 1988-04-15
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Granted: 1989-12-26
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Expires: 2008-04-15
Abstract
Abstract An improved broom element, means for loosely attaching the broom element to a broom element holder and orientation of broom elements on a broom reel of a railway ballast regulator is provided. The apparatus significantly reduces the time and effort required for maintenance of broom elements and reduces the stresses which can increase the wear on the broom elements and the sweeper unit of the ballast regulator.
Inventors
- 👤 Edmund C. Ramm
- 👤 II John J. Nogan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:53
CPC Classifications
A; A46; A46B; A46B3/00; A46B3/16; A46B3/08; A46B3/10; A46B3/14; E; E01; E01B; E01B27/00; E01B27/02; E01B27/023; E01B27/026
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
121 words
A railway broom sweeping unit comprising: broom reel; a plurality of broom element holders affixed to the broom reel and each having opposed side walls parallel to the axis of the broom reel and spaced apart a first distance; a plurality of broom elements having parallel side walls at a first end thereof spaced apart a distance less than that of the spacing between the opposed side walls of the broom element holder and adapted to fit loosely within the broom element holder when the respective parallel sides are in alignment; and securing means for loosely interconnecting the broom element with the broom element holder at its first end permitting relative movement of the broom element within the broom element holder.
Claim 2
Dependent Claim
121 words
A railway broom sweeping unit comprising: broom reel; a plurality of broom element holders affixed to the broom reel and each having opposed side walls parallel to the axis of the broom reel and spaced apart a first distance; a plurality of broom elements having parallel side walls at a first end thereof spaced apart a distance less than that of the spacing between the opposed side walls of the broom element holder and adapted to fit loosely within the broom element holder when the respective parallel sides are in alignment; and securing means for loosely interconnecting the broom element with the broom element holder at its first end permitting relative movement of the broom element within the broom element holder.
Claim 3
Dependent Claim
32 words
The railway broom sweeping unit of claim 1 wherein the securing means is a pin cooperating with aligned apertures in the broom element holder and the first end of the broom element.
Claim 4
Dependent Claim
33 words
The railway broom sweeping unit of claim 2 wherein the apertures are through the opposed side walls of the broom element holder and perpendicular to the parallel side walls of the broom element.
Claim 5
Dependent Claim
33 words
The railway broom sweeping unit of claim 3 wherein the opposed side walls of the broom element holders at their upper extremities are contoured away from the interior of the broom element holder.
Claim 6
Dependent Claim
26 words
The railway broom sweeping unit of claim 4 wherein the broom element holders are arranged in a helical disposition around the circumference of the broom reel.
Claim 7
Dependent Claim
26 words
The railway broom sweeping unit of claim 1 wherein each broom element holder includes therein a plurality of seats for retaining a plurality of broom elements.
Claim 8
Dependent Claim
20 words
The railway broom sweeping unit of claim 6 wherein the broom element holders are arranged helically around the broom reel.
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) | 1992-12-25 | 1993-06-26 | 1993-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-25 | 1997-06-26 | 1997-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-25 | 2001-06-26 | 2001-12-26 | $7700.00 | Window Closed / Lapsed |