Dishwasher upper spray arm

Details Dishwasher upper spray arm Dishwasher upper spray arm

1981-05-29

1983-12-06

Love, John J.

Fluid sprinkling, spraying, and diffusing

Distributor continuously moves relative to support during...

Sediment collector or internal diverter baffle

239246, 239251, 2395535, B05B 300, B05B 302

Patent

active

044188684

ABSTRACT:
A rotary spray arm structure for a dishwasher or the like rotatable about an axis of rotation, the spray arm structure having an entrance passage coinciding with the axis of rotation for receiving a pressurized column of liquid, the entrance passage opening to a hollow interior of the spray arm, and a plurality of nozzles spaced along each hollow arm of the spray arm means with each nozzle having an entrance end at the hollow interior and an exit end for discharging the liquid, the hollow interior in each arm constricting from adjacent the axis of rotation to adjacent the outer end of each arm and liquid supply ramp means leading from the hollow interior of each arm to the inner entrance end of each nozzle with each ramp comprising a groove angled outwardly toward its nozzle.

REFERENCES:
patent: 1780168 (1930-11-01), Burmeister
patent: 1901683 (1933-03-01), Weidman
patent: 2359690 (1944-10-01), Tarbox
patent: 2905393 (1959-09-01), Federighi et al.
patent: 3288372 (1966-11-01), Cushing
patent: 3362645 (1968-01-01), Clark

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