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

• Current Assignee: Raymond E. Gust
• Original Assignee: Raymond E. Gust
• Inventors: Gust, Raymond E.
• Primary Examiner(s): Reeves, Robert B.
• Assistant Examiner(s): Kocovsky, Thomas E.
• Application Number:
  US05/250,747
• Time in Patent Office: 704 Days
• Field of Search: 222/181,186,504 239/139
• US Class Current: 222/484
• CPC Class Codes: B67D 2001/0811 provided with coded information
• CPC Class Codes: B67D 3/0003 provided with automatic fluid control means
• CPC Class Codes: B67D 3/0006 responsive to coded information provided on the neck or spout of the storage container, e.g. bar-code, magnets or transponder
• CPC Class Codes: B67D 3/0025 provided with dispensing valves actuated by the receptacle to be filled B67D3/02 takes precedence
• CPC Class Codes: F16K 21/16 closing after a predetermined quantity of fluid has been delivered F16K21/10 takes precedence

Abstract

Liquid dispensing apparatus comprising a solenoid valve unit which is inserted into a bottle containing the liquid to be dispensed. The bottle and valve assembly is inverted and inserted in a dispensing holder containing an electromagnetic coil for actuating the solenoid valve, which has air vent means operable with the valve to ensure accurate volumetric delivery, regardless of the head of liquid in the bottle. The body of the valve unit has indexing means for engagement by sensors in the holder, to facilitate remote identification of the type of liquid being dispensed.

Claims

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.

2. 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 a predetermined axial position in said sleeve with the dispensing end of said nozzle adjacent the lower open end of the sleeve, vent means in said valve unit, actuated by opening said valve, for admitting air to the bottle, 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, said vent means includes a hollow stem extending from said valve body at the opposite end from said nozzle, said body having a vent opening from the exterior thereof to the interior of said stem, and vent controlling means in said stem coupled to said valve element to open and close therewith, said vent controlling means comprises a seat at the outer end of said stem, a push rod extending through said stem and having a vent plug on one end to fit into said seat, the other end of said push rod being positioned for engagement by said valve element, and spring means on said push rod biasing said vent plug to closed position in said seat.