Patent US3621922A successfully refreshed from Google Patents.
US3621922A
Expired / Lapsed
US
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Rolling fender
Assignee: Individual
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Filing: 1970-05-08
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Granted: 1971-11-23
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Expires: 1990-05-08
Abstract
Abstract A one-piece rolling fender having a curved central portion with teeth extending outwardly therefrom, each tooth having a concave forward edge and a strengthening rib, which is inclined rearwardly when said tooth contacts the ground, there being a connecting portion between the teeth. This fender shape prevents too much dirt from being thrown up on a plant row by a cultivator, and the fender itself throws the proper amount of dirt up onto a plant row to smoother weeds.
Inventors
- 👤 Jacob O Hinken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:15
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/20; A01B39/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A one-piece rolling fender comprising a curved central portion, said curved central portion having a plurality of teeth extending outwardly therefrom, said teeth each having a concave forward edge portion and relatively straight rear edge portion, said teeth each having an inclined strengthening rib extending inwardly from the outer edge of each tooth to said curved central portion, said strengthening rib extending rearwardly about 17* from a vertical line drawn between the point of contact of the tooth with the ground and the center of the rolling fender, the outer edges of said teeth being positioned laterally from the center of the curved central portion a distance of approximately one-tenth of the diameter of the outer edges of the teeth of said rolling fender, whereby said teeth protect against the excessive dumping of dirt on a plant row and do not pick up trash or undesirable articles.
Claim 2
Dependent Claim
147 words
A one-piece rolling fender comprising a curved central portion, said curved central portion having a plurality of teeth extending outwardly therefrom, said teeth each having a concave forward edge portion and relatively straight rear edge portion, said teeth each having an inclined strengthening rib extending inwardly from the outer edge of each tooth to said curved central portion, said strengthening rib extending rearwardly about 17* from a vertical line drawn between the point of contact of the tooth with the ground and the center of the rolling fender, the outer edges of said teeth being positioned laterally from the center of the curved central portion a distance of approximately one-tenth of the diameter of the outer edges of the teeth of said rolling fender, whereby said teeth protect against the excessive dumping of dirt on a plant row and do not pick up trash or undesirable articles.
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) | 1974-11-22 | 1975-05-24 | 1975-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-22 | 1979-05-24 | 1979-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-22 | 1983-05-24 | 1983-11-23 | $7700.00 | Window Closed / Lapsed |