Shower device
First Claim
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1. A shower device apparatus for combining a first liquid stream with selected secondary liquids into a mixed liquid outflow comprising:
- an inlet for said first liquid stream at its first end;
an outlet for said outflow at its second end;
fluid conduit means for the passage of said liquid stream therethrough communicating with said inlet at its upstream end and with said outlet at its downstream end;
injection means interposed between said inlet and said outlet to inject selected ones of said secondary liquids into said first liquid stream within said fluid conduit;
said injection means having venturi means along a portion of its length so as to result in said secondary liquids being drawn into said fluid conduit; and
main mixing means positioned intermediate said injection means and said outlet in a position, substantially within said fluid conduit and cooperating with said venturi means to deliver said outflow in mixed fashion;
said main mixing means including rotatable impeller means positioned proximate said outlet for contact with and mixing of said first and second liquids into said liquid stream.
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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.
41 Citations
8 Claims
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1. A shower device apparatus for combining a first liquid stream with selected secondary liquids into a mixed liquid outflow comprising:
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an inlet for said first liquid stream at its first end; an outlet for said outflow at its second end; fluid conduit means for the passage of said liquid stream therethrough communicating with said inlet at its upstream end and with said outlet at its downstream end; injection means interposed between said inlet and said outlet to inject selected ones of said secondary liquids into said first liquid stream within said fluid conduit; said injection means having venturi means along a portion of its length so as to result in said secondary liquids being drawn into said fluid conduit; and main mixing means positioned intermediate said injection means and said outlet in a position, substantially within said fluid conduit and cooperating with said venturi means to deliver said outflow in mixed fashion; said main mixing means including rotatable impeller means positioned proximate said outlet for contact with and mixing of said first and second liquids into said liquid stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification