Textiles: fluid treating apparatus – Machines – Single tub and automatic sequential operation mechanism
Patent
1989-02-03
1991-01-01
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Single tub and automatic sequential operation mechanism
68 17R, 68207, 194243, 222 2, D06F 3302, D06F 3902
Patent
active
049810243
ABSTRACT:
A system for injecting a laundry chemical into a washing machine includes means for injecting a chemical into a washing machine and coin-operated means for actuating it. One embodiment includes interconnected first, second, and third components configured for use with a source of a laundry chemical, a source of water, and a washing machine of the type having a washing machine cycle, a start switch for starting the washing machine cycle, and a known water flow pattern that occurs after the washing machine cycle has started. The first component produces a first signal indicative of the washing machine cycle having started, the second component produces a second signal indicative of a flow of water from the separate water source into the washing machine, and the third component responds to the first and second signals to identify an occurrence of the known water flow pattern after the washing machine cycle has started and control the injection of a chemical into the washing machine accordingly. Another embodiment inserts in the hot and cold water supply lines, connects to a modified coin slot, and includes microprocessor circuitry that operates to inject during either a wash or a rinse portion of the washing machine cycle.
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Belco Equipment, Inc.
Coe Philip R.
Hanson Loyal M.
Peterson Gordon L.
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