Patent · US Expired

Closed transfer means

US5191919A · kind A · utility

1Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 18, 1991
Grant dateMar 9, 1993
Priority date
Expiry dateOct 18, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/87249
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A closed transfer apparatus for transferring liquid from a container to a dilution tank in measured volume includes an actuator moveable to a first position that energizes an electric pump to pump liquid from the container into a transfer tank and moveable to a second position which energizes the pump to pump liquid from the transfer tank to the dilution tank; the actuator being biased to a center position in which the electric pump is de-energized and the tanks and the container are all isolated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.