US3765430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic dish rinsing machine having a centrifugal force separator
Assignee: Karl Winterhalter KG
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Filing: 1971-10-21
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Granted: 1973-10-16
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Expires: 1991-10-21
Abstract
Abstract An automatic dish rinsing machine particularly for commercial purposes having a centrifugal force separator. A portion of the washing suds or detergent solution which is taken from the lower portion of the rinsing space is fed by means of a pump to the centrifugal separator in a tangential direction. The upper outlet of the separator which carries the cleaned detergent solution leads to the rinsing space above the level of the detergent solution. The pump generates a pressure of more than 2 kilograms per square centimeter above atmospheric pressure and has two outlets, one of which is connected to a tube having nozzles disposed in the rinsing space by means of a line carrying the detergent solution while the other one is connected by a line which carries a portion of the fluid to the tangentially extending inlet of the separator.
Inventors
- 👤 H Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/4214; A47L15/4225
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
Automatic dish rinsing machine particularly suitable for commercial purposes, said machine comprising: a. a rinsing chamber in said machine and containing a washing liquid; b. a centrifugal force separator having a tangentially extending inlet; c. a centrifugal pump disposed outside of said rinsing chamber, said pump generating a fluid pressure of more than 2 kilograms per square centimeter above atmospheric pressure and having a first and a second outlet; d. said second outlet being arranged in a region having a stronger centifugal effect than said first outlet; e. a tube having nozzles disposed in said rinsing chamber; f. a first conduit connecting said first outlet to said tube having nozzles for conveying the washing liquid; and g. a second conduit connecting said second outlet of said pump with said tangentially extending inlet of said separator, said second conduit being so proportioned as to carry a fraction of the liquid flowing through said pump.
Claim 2
Dependent Claim
153 words
Automatic dish rinsing machine particularly suitable for commercial purposes, said machine comprising: a. a rinsing chamber in said machine and containing a washing liquid; b. a centrifugal force separator having a tangentially extending inlet; c. a centrifugal pump disposed outside of said rinsing chamber, said pump generating a fluid pressure of more than 2 kilograms per square centimeter above atmospheric pressure and having a first and a second outlet; d. said second outlet being arranged in a region having a stronger centifugal effect than said first outlet; e. a tube having nozzles disposed in said rinsing chamber; f. a first conduit connecting said first outlet to said tube having nozzles for conveying the washing liquid; and g. a second conduit connecting said second outlet of said pump with said tangentially extending inlet of said separator, said second conduit being so proportioned as to carry a fraction of the liquid flowing through said pump.
Claim 3
Dependent Claim
77 words
Dish rinsing machine as defined in claim 1 wherein the cross-sections of said second outlet, of said second conduit and of said tengentially extending inlet of said separator are so proportioned that about 5 percent to about 10 percent of the washing liquid flowing through said pump is fed to said separator, and wherein said pump is so constructed that the entrance velocity of the liquid into said separator is more than about 6 meters per second.
Claim 4
Dependent Claim
68 words
Dish rinsing machine as defined in claim 1 wherein said centrifugal force separator is provided with a first outlet carrying the cleaned liquid, and a third conduit connecting said first outlet of said separator to said rinsing chamber, said separator being provided with a lower second outlet carrying a liquid enriched by impurities, and a fourth conduit connecting said second outlet of said separator with a waste pipe.
Claim 5
Dependent Claim
58 words
Dish rinsing machine as defined in claim 3 wherein an automatic rinsing cycle is so arranged that during the washing liquid cleaning process the amount of rinsing liquid and impurities which are permitted to discharge through said fourth conduit is no more than the amoUnt of fresh water fed into said rinsing chamber during the after rinsing cycle.
Claim 6
Dependent Claim
27 words
Dish rinsing machine as defined in claim 1 wherein said tangentially extending inlet of said separator is disposed above the washing liquid level in said rinsing chamber.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |