Patent · US Expired

Simultaneous dispensing apparatus

US5305917A · kind A · utility

44Cited by
86References
38Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 19, 1992
Grant dateApr 26, 1994
Priority date
Expiry dateNov 19, 2012

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01F2101/30
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Dispensing apparatus is provided for simultaneously dispensing metered quantities of a plurality of materials into a common receptacle. Pump modules each containing a plurality of individual pump members are arranged in a rectangular pattern, between a base plate and a drive plate. The drive plate is raised and lowered, toward and away from the base plate, by a pair of drive screws. The plurality of individual pump members are thus simultaneously operated to dispense different materials into a common receptacle, at the same time.

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