Drip prevention by flow reversing and/or overfill removal > Simultaneous filling and removing > Double acting or plural pumps > Patents

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Class Information
Number: 141/127
Name: Fluent material handling, with receiver or receiver coacting means > Drip prevention by flow reversing and/or overfill removal > Simultaneous filling and removing > Double acting or plural pumps
Description: Apparatus in which simultaneous filling and removing is accomplished by plural fluid flow causing devices or by a fluid flow device which when acting in one direction causes filling and when acting in the opposite direction causes removal of contents material.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7219818	Controlled dispensing device	May. 22, 2007
7108024	Apparatus for the simultaneous filling of precise amounts of viscous liquid material in a sanitary environment	Sep. 19, 2006
6726389	Paint brush assembly having two-stage anti-reverse effect	Apr. 27, 2004
6640840	Delivery of liquid precursors to semiconductor processing reactors	Nov. 4, 2003
6520221	Filling nozzle with interception of supply liquids for filling machines	Feb. 18, 2003
6390146	Battery acid filler method	May. 21, 2002
5992477	Battery acid filler machine and method	Nov. 30, 1999
5121773	Process for drawing off a milk sample	Jun. 16, 1992