US4027986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Herbicide applicator
Assignee: Individual
•
Filing: 1975-10-23
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Granted: 1977-06-07
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Expires: 1995-10-23
Abstract
Abstract A herbicide applicator for applying herbicide by direct contact with unwanted woody-type vegetation. The applicator includes a long hollow tube having a flared bell housing mounted at one end for holding sponge-type material, and an applicator pad covering the end of said housing. Control means for the flow of herbicide are provided by an internal orifice plate on the inner end of the bell housing and in contact with the sponge material, and an adjustable threaded plug at the other end of the tube for controlling air and vacuum within the tube.
Inventors
- 👤 Stanley R. Patrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:26
CPC Classifications
A; A01; A01M; A01M21/00; A01M21/04; A01M21/043
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
103 words
A herbicide applicator comprising; means for controlling the flow of herbicide fluid so that controlled amounts of fluid may be applied to unwanted vegetation including, a long hollow body portion for holding herbicide fluid having an applicator means at one end thereof, air control means at the other end thereof, the applicator means including a single orifice flow control member, the air control means includes an enlarged coupling portion which is threaded internally and an adjustable coarse threaded screw plug for closing the end with the air control being by the air leaks through the coarse threads when the plug is partially loosened.
Claim 2
Dependent Claim
103 words
A herbicide applicator comprising; means for controlling the flow of herbicide fluid so that controlled amounts of fluid may be applied to unwanted vegetation including, a long hollow body portion for holding herbicide fluid having an applicator means at one end thereof, air control means at the other end thereof, the applicator means including a single orifice flow control member, the air control means includes an enlarged coupling portion which is threaded internally and an adjustable coarse threaded screw plug for closing the end with the air control being by the air leaks through the coarse threads when the plug is partially loosened.
Claim 3
Dependent Claim
40 words
The device as defined in claim 1 wherein the applicator means also has a housing member with an enlarged opening at one end thereof filled with sponge material and covered with durable porous material mounted on the hollow body portion.
Claim 4
Dependent Claim
114 words
In an applicator device for herbicide fluid comprising: means for controlling the flow of herbicide fluid so that controlled amounts of fluid may be applied to unwanted vegetation including; a long hollow tube body with two ends, an enlarged internally threaded coupling at one end of the long tube for receiving the fluid, and adjustable coarse threaded plug for closing the coupling screwed thereinto for controlling the amount of air into the tube body through the screw threads when the plug is slightly loosened, an opening at the other end of the tube body, and applicator means mounted on said other end for applying the fluid in controlled amounts to vegetation to be treated.
Claim 5
Dependent Claim
114 words
In an applicator device for herbicide fluid comprising: means for controlling the flow of herbicide fluid so that controlled amounts of fluid may be applied to unwanted vegetation including; a long hollow tube body with two ends, an enlarged internally threaded coupling at one end of the long tube for receiving the fluid, and adjustable coarse threaded plug for closing the coupling screwed thereinto for controlling the amount of air into the tube body through the screw threads when the plug is slightly loosened, an opening at the other end of the tube body, and applicator means mounted on said other end for applying the fluid in controlled amounts to vegetation to be treated.
Claim 6
Dependent Claim
24 words
The device as in claim 3 wherein the applicator means includes an enlarged housing filled with sponge-like material and covered with durable porous material.
Claim 7
Dependent Claim
17 words
The device as in claim 4 including clamp means holding the durable porous material to the housing.
Claim 8
Dependent Claim
39 words
The device as in claim 5 wherein the housing is bell shaped, with a large opening having an enlarged edge around the opening on the outside thereof for retaining said porous material and said clamp means on the housing.
Claim 9
Dependent Claim
34 words
The device as in claim 6 including an orifice member having a small hole in the center thereof mounted in said housing for control of fluid from the body tube to the sponge material.
Claim 10
Dependent Claim
38 words
The device as in claim 7 wherein the clamp means for holding porous material to the opening in the bell-shaped housing includes a clamp member having double screws for securing same in clamping engagement with the porous material.
Claim 11
Dependent Claim
48 words
The device as in claim 8 wherein the durable porous material on the bell-shaped housing is provided with cutouts around the periphery thereof for ease in proper fit of the material over the enlarged edge around the outside of the opening and for clamping by the said clamp.
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) | 1980-06-06 | 1980-12-06 | 1981-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-06 | 1984-12-06 | 1985-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-06 | 1988-12-06 | 1989-06-07 | $7700.00 | Window Closed / Lapsed |