Patent · US Active

Barrier piston with seal

US8245888B2 · kind B2 · utility

11Cited by

37References

7Claims

0Family size

Assignee

S. C. JOHNSON & SON, INC. · US

Inventors

Daniel A. Andersen · Burlington, US
Lawrence M. Brown · Roswell, US

Key dates

Filing date	Oct 24, 2008
Grant date	Aug 21, 2012
Priority date	—
Expiry date	Aug 25, 2030

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65D83/64
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A barrier piston with an integrated seal for use with aerosol containers is disclosed. The barrier piston includes a piston body with flow channels disposed on the surface thereof. Stabilizers of a low durometer material are provided on the flow channels to prevent tilting and binding of the piston body within a container. A seal also of a low durometer material is disposed on the base of the piston body to ensure separation of the product and propellant.

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