Patent · US Active

Fluid dispenser head and a dispenser including such a dispenser head

US8534509B2 · kind B2 · utility

6Cited by
8References
19Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 26, 2011
Grant dateSep 17, 2013
Priority date—
Expiry dateNov 7, 2031

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D47/2068
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

Fluid dispenser head for mounting on a variable-volume fluid reservoir that has a movable wall. The head has a dispenser orifice, a sealing closure pin that closes the dispenser orifice, a resilient mechanism for urging the pin against the orifice, and a fluid inlet in communication with the reservoir. The head further includes a flexible differential membrane respectively defining bottom and top surface areas that are subjected to opposite pressure forces that are exerted by the fluid under pressure, the bottom surface area being substantially smaller than the top surface area, the closure member being formed by the flexible membrane.

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