US3866397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush eradicator
Assignee: Individual
•
Filing: 1972-11-27
•
Granted: 1975-02-18
•
Expires: 1992-11-27
Abstract
Abstract Immediately after unwanted brush is shredded by flails, the exposed stumps are sprayed with herbicide. Flexible flaps or fingers trip on the stumps and activate the herbicide spray; therefore conserving other vegetation and, also, conserving the herbicide.
Inventors
- 👤 Robert L Koziol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:55
CPC Classifications
A; A01; A01D; A01D43/00; A01D43/14; A01G; A01G23/00; A01G23/02; A01G23/08; A01G23/093; A01M; A01M7/00; A01M7/005
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
184 words
In a brush eradicator including a. a vehicle supported by b. ground engaging wheels, c. a power unit on said vehicle for driving same, d. a cutter head on said vehicle, e. knives on said cutter head for cutting brush, f. linkage connecting said cutter head to said vehicle, g. means operatively associated with said linkage for raising and lowering said cutter head, h. The improvement in combination with the above comprising: j. a spray head attached to said vehicle behind said cutter head, k. said spray head including a plurality of flaps projecting below the spray head, m. said flaps projecting to an elevation lower than the knives of said cutter head, n. a plurality of spray nozzles on said spray head, o. a source of herbicide under pressure, p. a plurality of valves connected to said source of herbicide under pressure, q. each of said flaps connected to one of said valves in operative relationship thereto, r. at least one spray nozzle connected to each of said valves, s. said spray nozzle located proximate the flap which is connected to the valve.
Claim 2
Dependent Claim
184 words
In a brush eradicator including a. a vehicle supported by b. ground engaging wheels, c. a power unit on said vehicle for driving same, d. a cutter head on said vehicle, e. knives on said cutter head for cutting brush, f. linkage connecting said cutter head to said vehicle, g. means operatively associated with said linkage for raising and lowering said cutter head, h. The improvement in combination with the above comprising: j. a spray head attached to said vehicle behind said cutter head, k. said spray head including a plurality of flaps projecting below the spray head, m. said flaps projecting to an elevation lower than the knives of said cutter head, n. a plurality of spray nozzles on said spray head, o. a source of herbicide under pressure, p. a plurality of valves connected to said source of herbicide under pressure, q. each of said flaps connected to one of said valves in operative relationship thereto, r. at least one spray nozzle connected to each of said valves, s. said spray nozzle located proximate the flap which is connected to the valve.
Claim 3
Dependent Claim
33 words
The invention as defined in claim 1 with an additional limitation of t. said spray head connected to said linKage so that the spray head is raised and lowered with the cutter head.
Claim 4
Dependent Claim
37 words
The invention as defined in claim 1 with additional limitations of t. at least two nozzles for each flap, v. one of said nozzles in front of the flap and one of said nozzles behind the flap.
Claim 5
Dependent Claim
23 words
The invention as defined in claim 1, with an additional limitation of t. said nozzles being directional nozzles being directed toward said flap.
Claim 6
Dependent Claim
76 words
The invention as defined in claim 1 with additional limitations of t. said source of herbacide under pressure being in the form of a header pipe, u. said header pipe extending transversely across said spray head, v. each of said valves extending in an upward direction from said spray header, w. each of said valves being connected to two shuttle valves, x. each of said shuttle valves being connected to at least one of said nozzles.
Claim 7
Dependent Claim
33 words
The invention as defined in claim 5 with an additional limitation of y. said spray head connected to said linkage so that the spray head is raised and lowered with the cutter head.
Claim 8
Dependent Claim
38 words
The invention as defined in claim 5 with additional limitations of y. at least two nozzles for each shuttle valve, z. one of said nozzles in front of the flap and one of said nozzles behind the flap.
Claim 9
Dependent Claim
23 words
The invention as defined in claim 7 with an additional limitation of aa. said nozzles being directional nozzles being directed toward said flap.
Claim 10
Dependent Claim
33 words
The invention as defined in claim 8 with an additional limitation of bb. said spray head connected to said linkage so that the spray head is raised and lowered with the cutter head.
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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) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |