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Patent US4079832A successfully refreshed from Google Patents.
US4079832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manure remover
Assignee: Alfa Laval AB
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Filing: 1976-09-30
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Granted: 1978-03-21
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Expires: 1996-09-30
Abstract
Abstract A reciprocating drive unit is operable through a clutch assembly to move a manure scraper step-wise first in one direction and then in the opposite direction along a manure track. The clutch assembly includes means responsive to an overload on the scraper for causing the clutch assembly to self-activate the reversal of travel of the scraper, and means for adjusting said responsive means to vary the amount of overload required to effect said reversal.
Inventors
- 👤 Herbert Gallei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:39
CPC Classifications
A; A01; A01K; A01K1/00; A01K1/01; A01K1/0132; B; B65; B65G; B65G25/00; B65G25/04; B65G25/08; B65G25/10; B65G43/00; B65G43/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
A manure remover comprising the combination of a bidirectional drive unit, a scraper movable over a manure track in either direction, and a clutch assembly operating in either direction of the drive unit and through which the scraper is carried step-wise first in one direction and then in the reverse direction, the clutch assembly including means responsive to an overload on the scraper for causing the clutch assembly to self-activate the reversal of travel of the scraper, and means for adjusting said responsive means to vary the amount of overload required to effect said reversal, said responsive means including two adjacent parts movable relative to each other, a spring opposing relative movement of said parts in one direction, a lever mounted on one of said parts for rotation about an axis, one end of the lever being located in the path of the drive unit so as to be carried thereby, and a backstop mounted on the other of said parts and against which the other end of said lever rests.
Claim 2
Dependent Claim
171 words
A manure remover comprising the combination of a bidirectional drive unit, a scraper movable over a manure track in either direction, and a clutch assembly operating in either direction of the drive unit and through which the scraper is carried step-wise first in one direction and then in the reverse direction, the clutch assembly including means responsive to an overload on the scraper for causing the clutch assembly to self-activate the reversal of travel of the scraper, and means for adjusting said responsive means to vary the amount of overload required to effect said reversal, said responsive means including two adjacent parts movable relative to each other, a spring opposing relative movement of said parts in one direction, a lever mounted on one of said parts for rotation about an axis, one end of the lever being located in the path of the drive unit so as to be carried thereby, and a backstop mounted on the other of said parts and against which the other end of said lever rests.
Claim 3
Dependent Claim
45 words
The combination of claim 1, in which said two parts are located one above the other and are pivotally interconnected at one side, said adjusting means being a member operable to vary the force with which said spring opposes said relative movement in one direction.
Claim 4
Dependent Claim
25 words
The combination of claim 1, in which the clutch assembly also includes means for adjusting the range of said relative movement of said two parts.
References Cited (Backward Citations)
US3306435A
Cited
US3799330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |