A - Human Necessities – 01 – C
Patent
A - Human Necessities
01
C
222/87, 6/16.5
A01C 15/02 (2006.01) B05B 7/12 (2006.01) B05B 7/24 (2006.01) B29B 7/74 (2006.01)
Patent
CA 1069471
APPARATUS AND METHOD FOR INSERTING AN ADDITIVE LIQUID INTO A FLOWING FLUID AND DISCHARGING THE RESULTANT MIXTURE ABSTRACT OF THE DISCLOSURE A dispensing assembly for discharging a flowing fluid into which a desired amount of an additive liquid has been inserted includes a container for the additive liquid which may be removed from a dispenser body. The container is normally positively biased to a closed condition to prevent escape of the additive liquid. Opening of the container is achieved through an interconnection with the dispenser body, opening of the container being effected upon establishment of a predetermined minimum pressure by the flowing fluid in the dispenser body. Additive liquid is forced from the container into the flowing fluid by a metered amount of flowing fluid inserted into the container to cause a flexible pressure member to force the additive liquid from the container. Opening of the container is not achieved until after the pressure member is exerting a force on the additive liquid in order to prevent dilution of the additive liquid by the flowing fluid. Resistance to flow of the additive liquid from the container is minimized, so that the amount of additive liquid inserted into the flowing fluid is determined by metering of the flowing fluid, which is dependent upon the flow rate of the flowing fluid. Thus, a constant proportion of additive liquid is inserted into the flowing fluid and the metering is essentially independent of the characteristics of the additive liquid. All metering passages are easily accessible for cleaning. An alternative rinse path is provided to insure rinsing of the dispenser body before and after opening of the container. An appropriate flow regulating arrangement is utilized to selectively direct the flowing fluid through the alternative rinse path or to a pressure chamber to activate a mechanism for opening of the container. Various modifications, such as a manual control for providing a selection of spray patterns for the mixture of additive liquid and flowing fluid, as well as for selecting clear water in a rinsing mode, and a bypass route to provide greatly diluted mixtures, may be employed.
305109
Colgate Samuel O.
Ramey Robert A.
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