Title: Air gap assembly

Abstract: Air gap assembly for preventing backflow from a waste line to a dishwasher or other appliance connected to the line. The assembly comprises a vertically extending hollow body, an inlet tube extending upwardly within the body, an outlet tube connected to the body, an air vent in the body in proximity to the upper portion of the inlet tube, and a deflector cap mounted on the body above the inlet tube. Water entering the device through the inlet tube is deflected in a downward direction toward the outlet tube without leakage through the air vents, and the air vents prevent syphoning action which might otherwise produce undesired backflow from the waste line to the appliance connected to the inlet tube.

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Inventors: Appleby; Robert A. (Redwood City, CA)

Application Number: 06/265470
Filing Date: 1981-05-20
Publication_date: 1983-08-23
Assignee: MUNDO CORP (US)

Primary Class(es): 137/216 137/359
Other Classes: E03C1/12; F16K24/00
US Patent Ref:

3155106	November, 1964	Baron	137/216	Dishwasher drain airgap
3183923	May, 1965	Hendrikson	137/216	Air gap antisyphoning device
3425438	February, 1969	Suffron	137/216	ANTISYPHON DEVICE
3512545	May, 1970	Weaver	137/216	AIRGAP
3929149	December, 1975	Phillips	137/216	Backflow preventor for automatic dishwashers

Other Refs:
Primary Examiner: Michalsky, Gerald A.
Assistant Examiner:
Attorney: Flehr, Hohbach, Test, Albritton & Herbert

Claims: