US3872879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixing and dispensing device
Assignee: Individual
•
Filing: 1974-05-09
•
Granted: 1975-03-25
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Expires: 1994-05-09
Abstract
Abstract A mixing and dispensing device comprising a chamber in which material to be mixed with liquid is supported on a diaphram having a plurality of apertures. A conduit is connected to an inlet opening in the hollow member below the diaphram. A second conduit is connected to the first conduit. One end of the second conduit may be connected to a supply of liquid having a pressure which fluctuates rapidly over relatively short intervals. The other end of the second conduit serves as a discharge opening through which pure liquid or liquid mixed with the material is discharged.
Inventors
- 👤 Bernard S Green
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:27
CPC Classifications
A; A62; A62C; A62C5/00; A62C5/002; B; B08; B08B; B08B3/00; B08B3/02; B08B3/026; E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/046; B08B2203/00; B08B2203/02; B08B2203/0217; Y; Y10; Y10T; Y10T137/00; Y10T137/4891
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
182 words
A mixing and dispensing device comprising a hollow member, a diaphragm, means supporting said diaphragm in the interior of said hollow member, said diaphragm dividing said member into upper and lower chambers, said diaphragm having a plurality of apertures, said upper chamber having an inlet for receiving material to be mixed with a liquid, said lower chamber having an opening therein, a first conduit connected to said chamber at said first opening for communicating with the interior of said chamber, a second conduit, one end of said second conduit being connectable to a supply of liquid of which is subject to rapid fluctuations of pressure over very short intervals, the other end of said conduit defining a discharge opening, means for coupling said first conduit to said second conduit intermediate said first and second ends of said second conduit so that water with material is discharged from said discharge opening, and means for halting the flow of liquid through said first conduit, said halting means being disposed in said first conduit so that water without material is discharged from said discharge opening.
Claim 2
Dependent Claim
182 words
A mixing and dispensing device comprising a hollow member, a diaphragm, means supporting said diaphragm in the interior of said hollow member, said diaphragm dividing said member into upper and lower chambers, said diaphragm having a plurality of apertures, said upper chamber having an inlet for receiving material to be mixed with a liquid, said lower chamber having an opening therein, a first conduit connected to said chamber at said first opening for communicating with the interior of said chamber, a second conduit, one end of said second conduit being connectable to a supply of liquid of which is subject to rapid fluctuations of pressure over very short intervals, the other end of said conduit defining a discharge opening, means for coupling said first conduit to said second conduit intermediate said first and second ends of said second conduit so that water with material is discharged from said discharge opening, and means for halting the flow of liquid through said first conduit, said halting means being disposed in said first conduit so that water without material is discharged from said discharge opening.
Claim 3
Dependent Claim
21 words
A device as defined in claim 1 wherein said hollow member has a bottom wall, and said inlet is spaced therefrom.
Claim 4
Dependent Claim
39 words
A device as defined in claim 1 including a means in said second conduit for preventing the flow of liquid toward said supply, said means being disposed between said supply and the juncture of said first and second conduits.
Claim 5
Dependent Claim
69 words
A device as defined in claim 3 comprising a pump, said pump being disposed in said second conduit intermediate said means for preventing the flow of liquid and said juncture, and a pressure switch disposed in said second conduit intermediate said juncture and said discharge opening, and means for coupling said pressure switch to said pump so that a predetermined pressure said pump is de-energized by said pressure switch.
Claim 6
Dependent Claim
33 words
A device as defined in claim 1 including a nozzle, said nozzle being coupled to said discharge opening on said second conduit, and means for regulating the flow of liquid through said nozzle.
Claim 7
Dependent Claim
26 words
A device as defined in claim 5 wherein said second conduit comprises an elongated flexible member, and said nozzle is coupled to said elongated flexible member.
Claim 8
Dependent Claim
15 words
A device as defined in claim 6 wherein said diaphragm is comprised of non-rusting material.
Claim 9
Dependent Claim
19 words
A device as defined in claim 1 including means for making said inlet in said upper chamber air tight.
References Cited (Backward Citations)
US3089508A
Cited
US3467130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |