US3887129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accessory attachment for a vehicle used for fluid spraying of vegetation
Assignee: Individual
•
Filing: 1974-04-19
•
Granted: 1975-06-03
•
Expires: 1994-04-19
Abstract
Abstract This invention involves a fluid sprayer in the form of an elongated boom for attachment to an airplane, helicopter, or fast moving ground vehicle, that will dispense a spray in cohesive droplets at low pressure from a plurality of nozzles in laminar formation along the trailing flight edge and further in which the boom is divided into a plurality of sections each side of center with means to activate two central sections and further activate more sections either side for enlarging the spraying pattern and means to not only cut-off the flow of fluid spray at an exact point in flight but in addition to drawback fluid from the distribution in each nozzle after the fluid flow is stopped to provide a hydrostatic seal and prevent leakage of the fluid.
Inventors
- 👤 Harold F Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:25
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/16; B64D1/18; B05; B05B; B05B15/00; B05B15/50
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
In an apparatus connectable to a vehicle for spraying a fluid, the combination of: a. an elongated boom having central supports for attachment to the vehicle and the boom having a rigid hollow strong front section that extends the full length of the beem with a plurality of keyed in shorter movable spraying sections in alignment and rearwardly of the front section, said front section carrying the fluid to be sprayed, said keyed in movable sections interconnectable in alignment and provided with valve means that is opened by the connecting movement of each section, b. a fluid tube with a valve connected between the vehicle and the elongated boom to carry the fluid to be sprayed under pressure from the boom, c. said movable spraying sections provided with a plurality of spray tubes laid in laminar formation and each movable section provided with inlet ports that are movable to an alignment position with the ports of the front section for spraying and movable out of alignment to stop spraying.
Claim 2
Dependent Claim
169 words
In an apparatus connectable to a vehicle for spraying a fluid, the combination of: a. an elongated boom having central supports for attachment to the vehicle and the boom having a rigid hollow strong front section that extends the full length of the beem with a plurality of keyed in shorter movable spraying sections in alignment and rearwardly of the front section, said front section carrying the fluid to be sprayed, said keyed in movable sections interconnectable in alignment and provided with valve means that is opened by the connecting movement of each section, b. a fluid tube with a valve connected between the vehicle and the elongated boom to carry the fluid to be sprayed under pressure from the boom, c. said movable spraying sections provided with a plurality of spray tubes laid in laminar formation and each movable section provided with inlet ports that are movable to an alignment position with the ports of the front section for spraying and movable out of alignment to stop spraying.
Claim 3
Dependent Claim
169 words
In an apparatus connectable to a vehicle for spraying a fluid, the combination of: a. an elongated boom having central supports for attachment to the vehicle and the boom having a rigid hollow strong front section that extends the full length of the beem with a plurality of keyed in shorter movable spraying sections in alignment and rearwardly of the front section, said front section carrying the fluid to be sprayed, said keyed in movable sections interconnectable in alignment and provided with valve means that is opened by the connecting movement of each section, b. a fluid tube with a valve connected between the vehicle and the elongated boom to carry the fluid to be sprayed under pressure from the boom, c. said movable spraying sections provided with a plurality of spray tubes laid in laminar formation and each movable section provided with inlet ports that are movable to an alignment position with the ports of the front section for spraying and movable out of alignment to stop spraying.
Claim 4
Dependent Claim
169 words
In an apparatus connectable to a vehicle for spraying a fluid, the combination of: a. an elongated boom having central supports for attachment to the vehicle and the boom having a rigid hollow strong front section that extends the full length of the beem with a plurality of keyed in shorter movable spraying sections in alignment and rearwardly of the front section, said front section carrying the fluid to be sprayed, said keyed in movable sections interconnectable in alignment and provided with valve means that is opened by the connecting movement of each section, b. a fluid tube with a valve connected between the vehicle and the elongated boom to carry the fluid to be sprayed under pressure from the boom, c. said movable spraying sections provided with a plurality of spray tubes laid in laminar formation and each movable section provided with inlet ports that are movable to an alignment position with the ports of the front section for spraying and movable out of alignment to stop spraying.
Claim 5
Dependent Claim
88 words
A combination as defined in claim 1 including a plurality of compressable and expandable flexible elements inserted in each of the movable sections of the boom that are mounted within or connected with the fluid spray passage with means to compress the flexible elements during the spraying operation and means to release and allow these elements to expand when the fluid pressure spray is stopped to in turn create a negative pressure and cause the remaining fluid in said spray tubes to be drawn back and prevent leakage.
Claim 6
Dependent Claim
131 words
An accessory sprayer to be supported and carried in a particular position on a movable vehicle in which the vehicle carries the fluid to be sprayed and is connected to the sprayer by tubing to supply same during a spraying operation and in which the sprayer is in the form of an elongated boom that is centrally supported and carried cross wise to the direction of movement of the vehicle and in which the boom is provided with a plurality of compressible and expandable flexible elements inserted in said boom with means to compress the flexible elements during spraying operations and means to expand said flexible elements after stopping the fluid spray and produce a negative pressure to in turn draw back the remaining fluid in said boom and prevent leakage.
Claim 7
Dependent Claim
131 words
An accessory sprayer to be supported and carried in a particular position on a movable vehicle in which the vehicle carries the fluid to be sprayed and is connected to the sprayer by tubing to supply same during a spraying operation and in which the sprayer is in the form of an elongated boom that is centrally supported and carried cross wise to the direction of movement of the vehicle and in which the boom is provided with a plurality of compressible and expandable flexible elements inserted in said boom with means to compress the flexible elements during spraying operations and means to expand said flexible elements after stopping the fluid spray and produce a negative pressure to in turn draw back the remaining fluid in said boom and prevent leakage.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |