Patent · US Expired

Spray dispenser with spring biased flexible container

US4136802A · kind A · utility

67Cited by
5References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 21, 1977
Grant dateJan 30, 1979
Priority date
Expiry dateSep 21, 1997

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D83/766
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A dispensing unit which may be readily incorporated in an enclosure, such as a conventional can. The dispensing unit includes a readily collapsible bag in which a product to be dispensed is stored, and a plurality of spring strips. Each of the spring strips is of a construction to inherently roll into a coiled form and constantly urging the collapsing of the container. When the container is incorporated in an enclosure of the general can type including an upper end unit secured to a body by a seam, upper end portions of the spring strips may be anchored within the seam.

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