US3658091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the admixture of additive fluids mixed with water used in washing machines, dishwashers and the like
Assignee: Hansgrohe SE
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Filing: 1970-03-23
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Granted: 1972-04-25
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Expires: 1990-03-23
Abstract
Abstract A device is provided for supplying a flow of an additive fluid to a primary fluid stream wherein the two fluids are admixed. A venturi type constriction may be formed in a conduit carrying the primary fluid stream and a suction conduit may connect an additive fluid container with the venturi constriction. A check valve may be disposed at a discharge end of the suction conduit and a manually operated regulating valve may be disposed at an intake end of the suction conduit. The conduit carrying the primary fluid may be formed in a head portion of the overall device and the container may be connected to the head portion by a bayonet latch. A secondary air inlet may be provided between the additive fluid container and the discharge end of the suction conduit upstream from the check valve. The manually operated regulating valve may be mounted at a bottom portion of the overall device.
Inventors
- 👤 Gunther Buzzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:00
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/046; B; B01; B01F; B01F25/00; B01F25/30; B01F25/31; B01F25/316; B01F25/312; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7908; Y10T137/7909; Y10T137/791; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87595; Y10T137/87619; Y10T137/87627; Y10T137/87643
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
A device for the admixture of additive fluids to a stream of water for use in washing machines, dishwashers and the like comprising: a. an additive fluid storage container; b. a head portion; c. a suction pipe connecting between said storage container and the stream of water; d. a downwardly directed flange formed on said head portion for removably connecting said head portion to said storage container; and e. bayonet-locking means disposed between said storage container and said downwardly directed flange on said head portion, said bayonet-locking means including a pressure plate; anD said pressure plate being elastically urged against an upper edge of said storage container while permitting air to pass between said pressure plate and said upper edge of said storage container.
Claim 2
Independent Claim
124 words
A device for the admixture of additive fluids to a stream of water for use in washing machines, dishwashers and the like comprising: a. an additive fluid storage container; b. a head portion; c. a suction pipe connecting between said storage container and the stream of water; d. a downwardly directed flange formed on said head portion for removably connecting said head portion to said storage container; and e. bayonet-locking means disposed between said storage container and said downwardly directed flange on said head portion, said bayonet-locking means including a pressure plate; anD said pressure plate being elastically urged against an upper edge of said storage container while permitting air to pass between said pressure plate and said upper edge of said storage container.
Claim 3
Dependent Claim
56 words
A device according to claim 1 wherein said upper edge of said storage container is formed with notched cam means; and wherein said pressure plate is formed with notched recess means; and said notched cam means and said notched recess means being engageable to hold said head portion and said storage container against relative rotational movement.
Claim 4
Dependent Claim
20 words
A device according to claim 1 wherein said pressure plate comprises an elastic plastic material formed with a hollow periphery.
Claim 5
Independent Claim
118 words
A device for the admixture of additive fluids to a stream of water for use in washing machines, dishwashers and the like comprising: a. a head portion; b. a conduit for carrying the stream of water formed in said head portion; c. an injector nozzle formed in said head portion; d. an additive fluid storage container connected to said head portion; e. a suction pipe communicating between said storage container and the stream of water; f. a check valve disposed in said suction pipe; g. a secondary air duct formed into said suction pipe upstream of said check valve; and h. an adjustable nozzle means disposed in said secondary air duct for adjusting the flow of air therethrough.
Claim 6
Independent Claim
118 words
A device for the admixture of additive fluids to a stream of water for use in washing machines, dishwashers and the like comprising: a. a head portion; b. a conduit for carrying the stream of water formed in said head portion; c. an injector nozzle formed in said head portion; d. an additive fluid storage container connected to said head portion; e. a suction pipe communicating between said storage container and the stream of water; f. a check valve disposed in said suction pipe; g. a secondary air duct formed into said suction pipe upstream of said check valve; and h. an adjustable nozzle means disposed in said secondary air duct for adjusting the flow of air therethrough.
Claim 7
Dependent Claim
129 words
A device according to claim 4 wherein the center line of said secondary air duct intercepts an additive fluid passageway formed by said suction pipe; said secondary air duct being formed with a variable diameter along the length thereof; said variable diameter of said secondary air duct comprising a conical transition; threading being formed in a wide portion of said secondary air duct; said secondary air duct connecting said suction pipe with an upper most space in said storage container; a regulating screw being inserted within said secondary air duct and engaging said threading thereof; said regulating screw having a longitudinally aligned notched slot; said regulating screw having a configuration corresponding to the conical configuration of said secondary air duct; and said secondary air duct comprising a drill hole.
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |