US3593728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning unit for frying, broiling or defrosting chamber
Assignee: Burger Eisenwerke AG
•
Filing: 1969-10-06
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Granted: 1971-07-20
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Expires: 1989-10-06
Abstract
Abstract A portable cleaning unit for a frying, broiling or defrosting chamber, open to one side, has a lid emplaceable across the open side to leave only a drain aperture at the bottom, the lid carrying an elongate spray nozzle with ports for the discharge of a high-pressure wash liquid onto the chamber walls. The wash liquid is fed to the nozzle from a wheeled tank to which the spent liquid is returned via the drain; a dual pump in the tank and a set of valves enable a switchover from the wash liquid to a rinse liquid.
Inventors
- 👤 Paul Sauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
B; B08; B08B; B08B3/00; B08B3/04; B08B3/10; B08B9/00; B08B9/08; B08B9/093; F; F24; F24C; F24C14/00; F24C14/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
76 words
A cleaning unit for a heatable food-treating chamber open to one side, comprising a lid emplaceable vertically across the open side of said chamber, nozzle means on said lid extending into said chamber upon such emplacement, a supply of high-pressure wash liquid, inlet means leading from said supply to said nozzle means for discharging said wash liquid into said chamber, and drain means in the bottom of said lid for removing spent liquid from said chamber.
Claim 2
Dependent Claim
76 words
A cleaning unit for a heatable food-treating chamber open to one side, comprising a lid emplaceable vertically across the open side of said chamber, nozzle means on said lid extending into said chamber upon such emplacement, a supply of high-pressure wash liquid, inlet means leading from said supply to said nozzle means for discharging said wash liquid into said chamber, and drain means in the bottom of said lid for removing spent liquid from said chamber.
Claim 3
Dependent Claim
24 words
A cleaning unit as defined in claim 1 wherein said drain means comprises a reflux conduit for returning said spent liquid to said supply.
Claim 4
Dependent Claim
15 words
A cleaning unit as defined in claim 2 wherein said supply comprises a wheeled tank.
Claim 5
Dependent Claim
35 words
A cleaning unit as defined in claim 3 wherein said tank is provided with pump means for circulating said wash liquid via said inlet means, said nozzle means and said reflux conduit through said chamber.
Claim 6
Dependent Claim
41 words
A cleaning unit as defined in claim 4 wherein said tank comprises a first compartment for said wash liquid and a second compartment for a rinse liquid, said pump means being switchable for alternately circulating either liquid through said nozzle means.
Claim 7
Dependent Claim
28 words
A cleaning unit as defined in claim 5 wherein said reflux conduit is provided with valve means selectively operable for returning spent liquid to either of said compartments.
Claim 8
Dependent Claim
19 words
A cleaning unit as defined in claim 5 wherein said compartments are provided with heating means for their liquids.
References Cited (Backward Citations)
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Cited
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |