US3863841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid Spraying Device
Assignee: Berthoud SA
•
Filing: 1973-05-07
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Granted: 1975-02-04
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Expires: 1993-05-07
Abstract
Abstract A spraying device particularly for use in agriculture, comprising, in a pressuirized liquid inlet passage (2), upstream of a distributor consisting of at least two branches (3 and 3a) each connected by an individual valve (4 4a) to a spray nozzle (5, 5a), a single common outlet valve (16, 19) loaded by a calibrated spring (13) capable of opposing liquid flow when the pressure thereof is not sufficient to effect spraying, particularly on closing of a main valve, to avoid dripping of the nozzles during interruptions in the operation.
Inventors
- 👤 Fernand Berthoud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:32
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/14; B05B1/30; B05B1/3006; B05B1/1421; B05B1/1422; B05B15/00; B05B15/60; B05B15/65; B05B15/658; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/7836
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
250 words
A liquid spraying device to be connected to a pressurized liquid supply line, comprising: a. a body including a liquid receiving portion having an inner passage to receive the pressurized liquid to be sprayed; means to connect said inner passage with the pressurized liquid supply line; a transverse branch extending substantially on each side of said liquid receiving portion, said branch being formed with a longitudinal bore which does not communicate directly with said inner passage, and said longitudinal bore having two open ends; tubular nozzle carrying portions extending substantially radially from said transverse branch on each side of said liquid receiving portion and communicating with said longitudinal bore; and an antidrip-valve carrying portion laterally disposed with respect to said liquid receiving portion, said lateral portion having a substantially flat surface and being formed with ducts respectively communicating with said inner passage and with said transverse bore, with each of said ducts having an open end terminating at said substantially flat surface; b. an antidrip diaphragm valve bearing against said flat surface tO close the open ends of said ducts in the absence of the liquid under pressure within at least one of said ducts; c. resilient means to press said diaphragm valve against said flat surface; d. spraying nozzles mounted on said nozzle carrying portions; e. and valve means slidably mounted in each end of said longitudinal bore and selectively operable to block the flow of liquid from said bore to at least one of said nozzle carrying portions.
Claim 2
Dependent Claim
250 words
A liquid spraying device to be connected to a pressurized liquid supply line, comprising: a. a body including a liquid receiving portion having an inner passage to receive the pressurized liquid to be sprayed; means to connect said inner passage with the pressurized liquid supply line; a transverse branch extending substantially on each side of said liquid receiving portion, said branch being formed with a longitudinal bore which does not communicate directly with said inner passage, and said longitudinal bore having two open ends; tubular nozzle carrying portions extending substantially radially from said transverse branch on each side of said liquid receiving portion and communicating with said longitudinal bore; and an antidrip-valve carrying portion laterally disposed with respect to said liquid receiving portion, said lateral portion having a substantially flat surface and being formed with ducts respectively communicating with said inner passage and with said transverse bore, with each of said ducts having an open end terminating at said substantially flat surface; b. an antidrip diaphragm valve bearing against said flat surface tO close the open ends of said ducts in the absence of the liquid under pressure within at least one of said ducts; c. resilient means to press said diaphragm valve against said flat surface; d. spraying nozzles mounted on said nozzle carrying portions; e. and valve means slidably mounted in each end of said longitudinal bore and selectively operable to block the flow of liquid from said bore to at least one of said nozzle carrying portions.
Claim 3
Dependent Claim
77 words
In a liquid spraying device as claimed in claim 1, each of said valve means including a plug portion slidable in fluid-tight relation within said longitudinal bore, said plug portion being connected by a rod portion with a hollow cap having a screw-threaded inner periphery, and said transverse branch being provided with corresponding external screw-threads at each end thereof to rotatably receive said caps and to cause axial displacement of said plug portion within said longitudinal bore.
Claim 4
Dependent Claim
106 words
In a liquid spraying device as claimed in claim 1, for a pressurized liquid supply line comprising a pipe having a substantially circular periphery having a laterally extending port, said means to connect said inner passage including a concave arcuate surface formed on said liquid receiving portion to bear against the periphery of the pipe, with said inner passage opening on said concave surface to register with the lateral port of the pipe; sealing means carried by said concave surface around the opening of said passage thereon to bear against the periphery of said pipe; and means to clamp said liquid receiving portion on said pipe.
Claim 5
Dependent Claim
70 words
In a liquid spraying device as claimed in claim 1, for a pressurized liquid supply line comprising a succession of hoses, said liquid receiving portion having two opposed lateral sides and said means to connect said inner passage with said supply line including a nipple on each of said lateral sides of said liquid receiving portion to receive a hose, with said nipples being substantially in line with each other.
Claim 6
Dependent Claim
38 words
In a liquid spraying device as claimed in claim 4, an annular clamp to maintain each of said hoses on each of said nipples, with each of said clamps having an extension to be secured to a support.
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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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |