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STOPPER TYPE LIQUID DISPENSING APPARATUS

  • US 3,802,606 A
  • Filed: 05/05/1972
  • Issued: 04/09/1974
  • Est. Priority Date: 05/05/1972
  • Status: Expired due to Term
First Claim
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1. Liquid dispensing apparatus, comprising, a nozzle valve unit having means for attachment to a bottle of liquid to be dispensed, a separate dispensing unit having holder means for slidably receiving and holding said valve unit therein with an inverted bottle attached, said valve unit having a liquid conducting passage therethrough with normally closed valve means in the passage, said valve means being solely positioned in said valve unit, actuating means solely positioned in said holder means for solely selectively opening said valve, said valve unit has a body with a nozzle at one end with the dispensing end of the nozzle forming the end of said passage, said holder means having a substantially vertical sleeve that is open to both ends in which said valve unit body is a close fit, stop means on said valve unit for holding the body in predetermined axial position in said sleeve with the dispensing end of said nozzle adjacent the lower open end of the sleeve, said valve means includes an outlet having a valve seat therein adjacent said nozzle, a valve element movably mounted in said body and biased to seal against said seat, and a solenoid armature connected to said valve element, said actuating means including an electromagnetic coil surrounding said sleeve, indexing means on said valve body, sensing means in said holder for detecting said indexing means, said indexing means includes at least one annular groove in said body at a predetermined axial location, and said sensing means having axially spaced feelers for individual engagement with grooves at specific axial locations.

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