Patent US3642012A successfully refreshed from Google Patents.
US3642012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sterilizing apparatus for continuously sterilizing articles by flames means
Assignee: American Sterilizer Co
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Filing: 1969-09-03
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Granted: 1972-02-15
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Expires: 1989-09-03
Abstract
Abstract A combination dishwasher and sterilizer. The dishwasher has a conveyor for dishes which carries the dishes through a chamber having several zones which include a prime rinse zone, a wash zone and a final rinse zone. From the final rinse zone, the dishes pass through flames from two gas burners which direct the gas flames onto the dishes both from above and from below, killing bacteria on the dishes. A heat exchanger is provided which utilizes the heat from the flames to heat the rinse water for the final rinse.
Inventors
- 👤 Karl Kereluk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:48
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/02; A61L2/04; A47; A47L; A47L15/00; A47L15/24; A47L15/241; A47L15/42; A47L15/48
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
105 words
A washer-sterilizer combination comprising, a chamber, washing means in said chamber having a washing section and a sterilizing section, means to move dishes through said chamber, through said washing section, and through said sterilizing section, sterilizing means in said sterilizing section disposed in a position spaced from said washing section, said sterilizing means comprising a flame generating means below said dishes and directing a first flame onto said dishes and a flame generating means above said dishes directing a second flame onto said dishes from above said first flame overlapping said second flame whereby said flames engage said dishes and whereby said dishes are sterilized.
Claim 2
Dependent Claim
105 words
A washer-sterilizer combination comprising, a chamber, washing means in said chamber having a washing section and a sterilizing section, means to move dishes through said chamber, through said washing section, and through said sterilizing section, sterilizing means in said sterilizing section disposed in a position spaced from said washing section, said sterilizing means comprising a flame generating means below said dishes and directing a first flame onto said dishes and a flame generating means above said dishes directing a second flame onto said dishes from above said first flame overlapping said second flame whereby said flames engage said dishes and whereby said dishes are sterilized.
Claim 3
Dependent Claim
22 words
The combination recited in claim 1 wherein said sterilizing means comprises a plurality of laterally disposed gas burners supported below said conveyor.
Claim 4
Dependent Claim
49 words
The combination recited in claim 1 wherein said sterilizing means comprises a plurality of said gas burners spaced laterally and disposed above said conveyor and a plurality of said gas burners spaced laterally from each other and supported below said conveyor and adapted to project flames on said dishes.
Claim 5
Dependent Claim
30 words
The combination recited in claim 3 wherein a hood is supported above said gas flame and exhaust means is connected to said hood for removing exhaust gases from said chamber.
Claim 6
Dependent Claim
52 words
The combination recited in claim 4 wherein a first heat exchanger part is supported in said hood and a second heat exchanger part is connected to said first heat exchanger part and said second heat exchanger part being disposed in operative relation with a rinse water source for heating said rinse water.
Claim 7
Dependent Claim
17 words
The combination recited in claim 5 wherein a first heat exchanger part is supported above said flames.
Claim 8
Dependent Claim
35 words
The combination recited in claim 5 wherein said chamber has a prime rinse zone, a wash zone and a final rinse zone through which dishes are carried on a conveyor prior to said sterilizing means.
Claim 9
Dependent Claim
19 words
The combination recited in claim 7 wherein said conveyor is a roller conveyor having longitudinally spaced rollers laterally extendiNg.
Claim 10
Dependent Claim
47 words
The combination recited in claim 7 wherein said flame generating means supported on said chamber above said conveyor comprise a gas line extending laterally substantially from one side of said chamber to the other and spaced gas burners adapted to provide long flames attached to said line.
Claim 11
Dependent Claim
35 words
The combination recited in claim 7 wherein said burners below said conveyor comprise a laterally extending pipe extending substantially from one side of said chamber to the other and spaced burners attached to said pipe.
References Cited (Backward Citations)
US1136110A
Cited
US1215107A
Cited
US1761812A
Cited
US2095502A
Cited
US1992460A
Cited
US2036503A
Cited
US2644473A
Cited
US3018184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |