US4043399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tooth for a roto tiller
Assignee: Individual
•
Filing: 1976-08-11
•
Granted: 1977-08-23
•
Expires: 1996-08-11
Abstract
Abstract A tooth affixed to the outward end of each tine of a roto tiller, the tooth being made of carbide steel, so as to be very durable, the tooth projecting forwardly at an angle ahead of the tine radius, attachment of the tooth being accomplished either by a metal clamp removably secured to the tine, or else by directly welding the tooth to the tine.
Inventors
- 👤 Burk Guy Morrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:33
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/08; A01B33/10; A01B33/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
123 words
In combination with a roto tiller having a plurality of radially extending tines mounted to rotate about a generally horizontal axis and wherein each tine terminates in a generally axially extending earth working blade having a cutting edge thereon, the improvement comprising: A digging tooth assembly having a generally U-shaped mounting portion telescoped over at least one of said tines and including a leading portion positioned slightly forwardly of the cutting edge on said blade, a digging tooth having one end secured to said leading portion and having a surface projecting outwardly at an angle inclined forwardly to a radius from said axis, an angle support member between said tooth and said mounting portion, and means securing said tooth assembly to said tine.
Claim 2
Dependent Claim
123 words
In combination with a roto tiller having a plurality of radially extending tines mounted to rotate about a generally horizontal axis and wherein each tine terminates in a generally axially extending earth working blade having a cutting edge thereon, the improvement comprising: A digging tooth assembly having a generally U-shaped mounting portion telescoped over at least one of said tines and including a leading portion positioned slightly forwardly of the cutting edge on said blade, a digging tooth having one end secured to said leading portion and having a surface projecting outwardly at an angle inclined forwardly to a radius from said axis, an angle support member between said tooth and said mounting portion, and means securing said tooth assembly to said tine.
Claim 3
Dependent Claim
36 words
The combination of claim 1 wherein a notch is provided in the edge of one of said tines and a fastening member extends through said U-shaped mounting portion and at least a portion of said notch.
Claim 4
Dependent Claim
96 words
A tooth for a roto tiller comprising, a generally U-shaped clamp adapted to be fitted over a cutting blade on said roto tiller, said clamp having a pair of generally parallel legs with the terminal ends of said legs having an opening therethrough to receive a fastening member to clamp said legs against a blade, a carbide steel tip secured to one of said legs adjacent the base of said clamp and projecting generally at an obtuse angle with respect to said one leg, said tip including means secured to said leg for reinforcing said tip.
Claim 5
Dependent Claim
96 words
A tooth for a roto tiller comprising, a generally U-shaped clamp adapted to be fitted over a cutting blade on said roto tiller, said clamp having a pair of generally parallel legs with the terminal ends of said legs having an opening therethrough to receive a fastening member to clamp said legs against a blade, a carbide steel tip secured to one of said legs adjacent the base of said clamp and projecting generally at an obtuse angle with respect to said one leg, said tip including means secured to said leg for reinforcing said tip.
Claim 6
Dependent Claim
33 words
The tooth of claim 3 wherein at least one of said legs is bowed along the length thereof to bind against a rototiller blade. Reagle has been cited because of the digging teeth.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |