Wash arm attachment

Details Wash arm attachment Wash arm attachment

1991-12-09

1993-05-18

Coe, Philip R.

Cleaning and liquid contact with solids

Apparatus

With movably or flexibly mounted spray or jet applying...

239261, 285 38, 285921, A47L 1522

Patent

active

052111903

ABSTRACT:
A wash arm attachment includes a conduit connector having a threaded end extending through a central opening in the top wall of the dishwasher tub. An upper coupling member is threaded over the threaded end of the connector member and includes a shank portion which extends downwardly into a central opening of a wash arm so that the shank portion is enclosed within an internal spray chamber of the wash arm. A retainer stud has a plurality of cantilevered spring arms which are inserted into a tapered sleeve within the lower end of the upper coupling member so as to retain the two together and so as to permit the rotatable mounting of the spray arm within the dishwasher.

REFERENCES:
patent: 2013387 (1930-08-01), Johnston
patent: 2704083 (1951-10-01), Low
patent: 3370869 (1968-02-01), Dutcher
patent: 3809106 (1974-05-01), Crabtree
patent: 3866837 (1975-02-01), Jenkins
patent: 3876148 (1975-04-01), Cushing et al.
patent: 3941139 (1975-03-01), Spiegel
patent: 3951684 (1976-04-01), LaPrad
patent: 4014467 (1977-03-01), Ferguson
patent: 4172463 (1979-10-01), Woolley
patent: 4443028 (1984-04-01), Hayes
patent: 4869428 (1989-09-01), Gombar

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