Patent · US Active

Fluid dispenser

US10400952B1 · kind B1 · utility

0Cited by
30References
23Claims
0Family size

Inventor

Key dates

Filing dateApr 6, 2017
Grant dateSep 3, 2019
Priority date—
Expiry dateApr 6, 2037

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16N13/08
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

A higher viscosity fluid dispensing apparatus is provided having a reservoir chamber and a pump head positioned adjacent to an end of the reservoir chamber. The pump head includes a pump body having a pump cavity formed therein, a first one-way valve between the reservoir chamber and the pump cavity, a piston slidably engaged with the pump cavity and having a pump outlet in fluid communication with the pump cavity, and a second one-way valve between the pump outlet and the first one-way valve. The first one-way valve and second one-way valve cooperate to draw a higher viscosity fluid from the reservoir chamber into the pump cavity and expel the fluid out of the pump cavity through the pump outlet.

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