Spray dispenser with spring biased flexible container
US4136802A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1977 |
| Grant date | Jan 30, 1979 |
| Priority date | — |
| Expiry date | Sep 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.