US4011618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barn cleaner scraper
Assignee: Agway Inc
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Filing: 1975-10-24
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Granted: 1977-03-15
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Expires: 1995-10-24
Abstract
Abstract A barn cleaner for scraping manure from an alley between two rows of open stalls for cows, which cleaner includes a scraper element which extends transversely of the alley and is of generally triangular cross-section with the base of the triangle against the surface to be scraped to present rearwardly inclining scraping surfaces in both directions. The triangular scraper element includes weight means within the triangular area to insure intimate scraping contact. In a modification a pair of longitudinally spaced transversely extending scrapers are connected at their opposite ends by guide plates which extend longitudinally of the alley and form a rigid rectangular scraping frame with the guide plates in sliding engagement with curb formations at the juncture of the open stall spaces with the alley therebetween.
Inventors
- 👤 Rodney O. Martin
- 👤 John C. Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:48
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0132; A01K1/0128
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
A barn cleaner for scraping manure from an elongated rectangular area comprising scraping means extending transversely of said area and power means for moving said scraping means to and fro lengthwise of said area, a drive chain extending in opposite directions from said scraping means for connection with said power means, said scraping means comprising a scraping element extending across a major portion of said rectangular area and comprising a pair of flange elements connected along their upper edges and extending obliquely downwardly to present an open side toward the surface to be scraped and provide a pair of scraping surfaces each inclined upwardly and rearwardly with respect to a respective one of the directions of movement of the scraping means.
Claim 2
Dependent Claim
121 words
A barn cleaner for scraping manure from an elongated rectangular area comprising scraping means extending transversely of said area and power means for moving said scraping means to and fro lengthwise of said area, a drive chain extending in opposite directions from said scraping means for connection with said power means, said scraping means comprising a scraping element extending across a major portion of said rectangular area and comprising a pair of flange elements connected along their upper edges and extending obliquely downwardly to present an open side toward the surface to be scraped and provide a pair of scraping surfaces each inclined upwardly and rearwardly with respect to a respective one of the directions of movement of the scraping means.
Claim 3
Dependent Claim
37 words
A barn cleaner according to claim 1 wherein said scraping element is weighted by a concrete body cast thereinto with the scraper element in inverted position, and means for retaining said concrete body in said scraping element.
Claim 4
Dependent Claim
31 words
A barn cleaner according to claim 2 wherein said concrete body retaining means comprises members extending between and secured to the legs of said angular scraping element at the interior thereof.
Claim 5
Dependent Claim
145 words
A barn cleaner for scraping manure from an elongated area lying between a pair of generally parallel longitudinal curb formations comprising scraping means comprising a pair of transversely extending longitudinally spaced scraping elements, longitudinally extending guide members rigidly connecting the ends of said scraping elements to form a rectangular scraping frame, said guide members being adapted to engage said curb formations in sliding contact to guide said scraping frame along said elongated area, and power means for driving said scraping frame along said area in opposite directions, each of said scraping elements comprising a pair of plate elements connected along their upper edges and extending obliquely downwardly to present an open side toward the surface to be scraped and provide a pair of scraping surfaces each inclined upwardly and rearwardly with respect to a respective one of the directions of movement of the scraping means.
Claim 6
Dependent Claim
145 words
A barn cleaner for scraping manure from an elongated area lying between a pair of generally parallel longitudinal curb formations comprising scraping means comprising a pair of transversely extending longitudinally spaced scraping elements, longitudinally extending guide members rigidly connecting the ends of said scraping elements to form a rectangular scraping frame, said guide members being adapted to engage said curb formations in sliding contact to guide said scraping frame along said elongated area, and power means for driving said scraping frame along said area in opposite directions, each of said scraping elements comprising a pair of plate elements connected along their upper edges and extending obliquely downwardly to present an open side toward the surface to be scraped and provide a pair of scraping surfaces each inclined upwardly and rearwardly with respect to a respective one of the directions of movement of the scraping means.
Claim 7
Dependent Claim
29 words
A barn cleaner according to claim 4 wherein said scraping elements are weighted by concrete bodies cast thereinto, and means for retaining said concrete bodies in said scraping elements.
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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |