Patent · US Expired

Method of dispensing materials with improved accuracy

US5474211A · kind A · utility

128Cited by
12References
5Claims
0Family size

Inventor

Key dates

Filing dateNov 7, 1994
Grant dateDec 12, 1995
Priority date—
Expiry dateNov 7, 2014

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01F2101/35
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Dispensing mechanism includes a plurality of storage containers, each container having two or more metering pumps associated therewith. The containers and metering pumps are located on a turntable which is indexed to move a particular metering pump to a dispensing station. Automated dispensing equipment operate the metering pump at the dispensing station and the turntable is thereafter indexed a smaller amount to bring the other pump associated with the same container into a dispensing position. In this manner, a single actuator system can be employed for multiple discharge cycles associated with a particular canister, and can accommodate multiple canisters.

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