Baths – closets – sinks – and spittoons – Shower – Combined with diverse means
Patent
1981-11-18
1984-02-21
Artis, Henry K.
Baths, closets, sinks, and spittoons
Shower
Combined with diverse means
4605, 4615, 137893, 2221445, 239303, 239318, A47K 322
Patent
active
044321058
ABSTRACT:
A plumbing device stores one or more additives, and allows injection and mixing of such additives into the water stream delivered to a plumbing fixture such as a shower head or faucet. The design of the passage for the water stream provides a pressure differential sufficient to draw the additive into the water stream, while check valves are used to prevent backflow of additives. A mixing chamber, with an impeller element, mixes the injected material with the water stream. Metering valves may be used to control the amount of additive dispensed.
REFERENCES:
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patent: 3106345 (1963-10-01), Wukowitz
patent: 3231200 (1966-01-01), Heald
patent: 3486695 (1969-12-01), Novak
patent: 3720352 (1973-03-01), Kozlowski
patent: 3917172 (1975-11-01), O'Hare
patent: 4121773 (1978-10-01), Headen et al.
patent: 4200206 (1980-04-01), Chase et al.
patent: 4218013 (1980-08-01), Davison
patent: 4358056 (1982-11-01), Greenhut et al.
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