Cleaning and liquid contact with solids – Processes – Including regeneration – purification – recovery or separation...
Patent
1975-07-28
1977-03-08
Lindsay, Jr., Robert L.
Cleaning and liquid contact with solids
Processes
Including regeneration, purification, recovery or separation...
98115K, 134 18, 134 29, 134 56D, 134 95, 134 98, 134115R, B08B 300, B08B 1300
Patent
active
040111016
ABSTRACT:
A washing system combines a dishwashing assembly and a washable kitchen exhaust hood assembly by means of common use of a sump and pump. The pump selectively communicates with the dishwashing assembly and exhaust hood assembly through a bypass valve or diverting valve assembly having an input and two outputs. An exhaust fan connected by means of a duct system to the exhaust hood assembly is disenabled. The sump is filled with a detergent solution and the pump is activated to distribute the detergent solution within the washable exhaust hood assembly. A control means sequences additional valving to operate through a plurality of wash, rinse, and flush cycles. After the hood wash cycles are completed, the exhaust fan is activated and the bypass valve or diverting valve assembly is selectively activated to cause the pump and sump together with additional controlled valving, to sequence and operate the dishwashing assembly.
REFERENCES:
patent: 3034519 (1962-05-01), Jacobs
patent: 3564989 (1971-02-01), Williams
patent: 3628311 (1971-12-01), Costrarella et al.
patent: 3785124 (1974-01-01), Gaylord
patent: 3795181 (1974-03-01), Lawson
Levenback George
Marks Ronald Aaron
Elster's Inc.
Fisher Richard V.
Lindsay, Jr. Robert L.
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