Wash program selection and indexing apparatus

Details Wash program selection and indexing apparatus Wash program selection and indexing apparatus

1974-03-22

1976-02-10

Scott, James R.

Electrical transmission or interconnection systems

Switching systems

Switch actuation

134 58R, 200 38C, 317154, H01H 4300, H01H 4700

Patent

active

039379817

ABSTRACT:
Apparatus and logic circuitry for selection of a desired wash program in a laundry machine in which multiple programs are available and occupy zones of varied extent on a continuous program surface. An indexing surface is connected to and moves with the program surface. The indexing surface is divided into a plurality of tracks, each of which is marked to identify the position and extent of a distinct program encoded on the program surface. Individual pushbutton selection switches provide power to enable individual sensing switches paired with the tracks. An enabled switch senses the markings defining the program selected by actuation of a particular pushbutton. The pushbutton switch enabling an individual sensing switch also actuates an indexing drive which rapidly and automatically drives the indexing surface to a position where the enabled sensing switch senses a program point corresponding to the beginning of the selected program. The sensing switch then disconnects indexing drive and engages a timer motor, also enabling means responsive to the information encoded on the program surface so that the selected program may be performed.

REFERENCES:
patent: 3109074 (1963-10-01), Lewis et al.
patent: 3125105 (1964-03-01), Geiger
patent: 3138724 (1964-06-01), Wood
patent: 3215791 (1965-11-01), Fontaine
patent: 3260866 (1966-07-01), Martin
patent: 3319144 (1967-05-01), Clark
patent: 3454784 (1969-07-01), Wantz et al.
patent: 3819886 (1974-06-01), Homan et al.

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