US3717285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spraying a slurry
Assignee: STA SOIL CORP
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Filing: 1971-06-28
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Granted: 1973-02-20
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Expires: 1991-06-28
Abstract
Abstract A spraying apparatus is provided which may, for example, be carried by a truck, and which is used for spraying mulch, fertilizer or seed, or any combination thereof, on planting sites. The spraying mechanism of the invention has auxiliary fresh water tanks mounted on either side of a main mixing tank, the auxiliary tanks being filled with fresh water when the main mixing tank is filled. The mechanism of the invention also includes coupling pipelines and valves which permit fresh water in the auxiliary tanks to be used, when needed, to flush out the hoses and nozzles of the mechanism when a particular job is terminated.
Inventors
- 👤 J Hatton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:17
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/04; A01C7/00; A01C7/004
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
207 words
A mechanism for spraying a slurry comprising: a main mixing tank containing the slurry; an auxiliary tank assembly providing a reservoir for flushing water, said tank assembly being connected to said main tank; a pump having an inlet and an outlet; conduit means connecting said pump intake to both said main tank and said tank assembly; valve means included within said conduit means and actuatable to couple the pump selectively to said mixing tank or to said auxiliary tank assembly; a nozzle assembly and associated hose coupled to said outlet of said pump, whereby said valve means is capable of producing conduction of slurry from said main mixing tank to said nozzle means, said valve means also capable of causing conduction of water from said auxiliary tank assembly to said nozzle to clean residual amounts of slurry from within said nozzle and said associated hose; and said auxiliary tank assembly including a pair of spaced apart separate auxiliary tanks, said auxiliary tanks being interconnected together through an interconnecting conduit, inlet means to conduct water into one of said auxiliary tanks which in turn fills the other of said auxiliary tanks through said interconnecting conduit, said auxiliary tanks being closed to the ambient except through said inlet conduit.
Claim 2
Dependent Claim
207 words
A mechanism for spraying a slurry comprising: a main mixing tank containing the slurry; an auxiliary tank assembly providing a reservoir for flushing water, said tank assembly being connected to said main tank; a pump having an inlet and an outlet; conduit means connecting said pump intake to both said main tank and said tank assembly; valve means included within said conduit means and actuatable to couple the pump selectively to said mixing tank or to said auxiliary tank assembly; a nozzle assembly and associated hose coupled to said outlet of said pump, whereby said valve means is capable of producing conduction of slurry from said main mixing tank to said nozzle means, said valve means also capable of causing conduction of water from said auxiliary tank assembly to said nozzle to clean residual amounts of slurry from within said nozzle and said associated hose; and said auxiliary tank assembly including a pair of spaced apart separate auxiliary tanks, said auxiliary tanks being interconnected together through an interconnecting conduit, inlet means to conduct water into one of said auxiliary tanks which in turn fills the other of said auxiliary tanks through said interconnecting conduit, said auxiliary tanks being closed to the ambient except through said inlet conduit.
Claim 3
Dependent Claim
207 words
A mechanism for spraying a slurry comprising: a main mixing tank containing the slurry; an auxiliary tank assembly providing a reservoir for flushing water, said tank assembly being connected to said main tank; a pump having an inlet and an outlet; conduit means connecting said pump intake to both said main tank and said tank assembly; valve means included within said conduit means and actuatable to couple the pump selectively to said mixing tank or to said auxiliary tank assembly; a nozzle assembly and associated hose coupled to said outlet of said pump, whereby said valve means is capable of producing conduction of slurry from said main mixing tank to said nozzle means, said valve means also capable of causing conduction of water from said auxiliary tank assembly to said nozzle to clean residual amounts of slurry from within said nozzle and said associated hose; and said auxiliary tank assembly including a pair of spaced apart separate auxiliary tanks, said auxiliary tanks being interconnected together through an interconnecting conduit, inlet means to conduct water into one of said auxiliary tanks which in turn fills the other of said auxiliary tanks through said interconnecting conduit, said auxiliary tanks being closed to the ambient except through said inlet conduit.
Claim 4
Dependent Claim
207 words
A mechanism for spraying a slurry comprising: a main mixing tank containing the slurry; an auxiliary tank assembly providing a reservoir for flushing water, said tank assembly being connected to said main tank; a pump having an inlet and an outlet; conduit means connecting said pump intake to both said main tank and said tank assembly; valve means included within said conduit means and actuatable to couple the pump selectively to said mixing tank or to said auxiliary tank assembly; a nozzle assembly and associated hose coupled to said outlet of said pump, whereby said valve means is capable of producing conduction of slurry from said main mixing tank to said nozzle means, said valve means also capable of causing conduction of water from said auxiliary tank assembly to said nozzle to clean residual amounts of slurry from within said nozzle and said associated hose; and said auxiliary tank assembly including a pair of spaced apart separate auxiliary tanks, said auxiliary tanks being interconnected together through an interconnecting conduit, inlet means to conduct water into one of said auxiliary tanks which in turn fills the other of said auxiliary tanks through said interconnecting conduit, said auxiliary tanks being closed to the ambient except through said inlet conduit.
Claim 5
Dependent Claim
64 words
The mechanism as defined in claim 1 wherein: said conduit means comprises a first conduit connected between said pump and said main mixing tank and a second conduit connected between said auxiliary tank assembly and said pump, said valve means includes two separate valves, one of said valves included within said first conduit and the other of said valves included within the second conduit.
Claim 6
Dependent Claim
37 words
The mechanism as defined in claim 2 wherein: an overflow line assembly is connected between said auxiliary tanks and said main mixing tank, whereby overfilling of said auxiliary tanks automatically is conducted into said main mixing tank.
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |