Patent US3618674A successfully refreshed from Google Patents.
US3618674A
Expired / Lapsed
US
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Tool for adjusting disk harrow gangs
Assignee: Case LLC
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Filing: 1970-07-17
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Granted: 1971-11-09
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Expires: 1990-07-17
Abstract
Abstract In an agricultural implement such as a disk, harrow, a tool for adjusting the front and rear disk gangs and for securing said disk gangs in the adjusted position.
Inventors
- 👤 Robert D Woodworth
- 👤 Eugen J Birkenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:05
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/14; A01B63/24; A01B63/245; A01B21/00; A01B21/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
In a disk harrow having a frame member and a transversely extending disk gang including a supporting member mounted on said frame member, tool means for adjusting the position of said supporting member relative to said frame member comprising, a lever having ahead portion and a handle portion, a fulcrum rod attached to said lever between said head and handle portions, and a U-shaped clevis adapted to fit over one of said members, said clevis having a pair of registered openings near its ends to rotatably receive said fulcrum rod with said head portion engageable with the other of said members, whereby to exert a prying force against said other of said members upon angular movement of said lever about the axis of said fulcrum rod.
Claim 2
Dependent Claim
126 words
In a disk harrow having a frame member and a transversely extending disk gang including a supporting member mounted on said frame member, tool means for adjusting the position of said supporting member relative to said frame member comprising, a lever having ahead portion and a handle portion, a fulcrum rod attached to said lever between said head and handle portions, and a U-shaped clevis adapted to fit over one of said members, said clevis having a pair of registered openings near its ends to rotatably receive said fulcrum rod with said head portion engageable with the other of said members, whereby to exert a prying force against said other of said members upon angular movement of said lever about the axis of said fulcrum rod.
Claim 3
Dependent Claim
50 words
The invention set forth in claim 1, wherein said one of said members is said disk gang supporting member and the other of said members is said frame member and prying the head of said lever against said frame member pulls said supporting member transversely relative to said frame member.
Claim 4
Dependent Claim
48 words
The invention set forth in claim 2, wherein said clevis is optionally disposable on said frame member and the head portions of said lever is engageably with said supporting member to angularly adjust the latter relative to the frame member in response to angular movement of said lever.
Claim 5
Dependent Claim
33 words
The invention set forth in claim 1, wherein the mounting of said supporting member on said frame member includes releasable means accommodating said adjustment of said supporting member relative to said frame member.
Claim 6
Dependent Claim
71 words
The invention set forth in claim 4, wherein said mounting of said supporting member on said frame member includes a U-bolt and a strap enclosing said members and securing nuts therefor, and wherein a polygonal opening is provided in said lever adapted to mate with said nuts whereby said lever optionally functions as a wrench to loosen said nuts to facilitate adjustment of said supporting member relative to said frame member.
References Cited (Backward Citations)
US359803A
Cited
US2701707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |