The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 13, 2000
Filed:
Jan. 25, 1999
Allan E Wade, Manchester, MO (US);
Keith D Alsberg, Chicago, IL (US);
Jon B Taylor, Chicago, IL (US);
Steris Inc., Temecula, CA (US);
Abstract
A multi-layer film (22) covers an aperture (21) in a rigid container (10) to provide a filtered venting system (C) for the container. The film includes a porous filter layer (36,36') of a material such as polytetrafluoroethylene foam which filters bioburden from air as it enters the container during the dispensing of a fluid from a nozzle (14) in the container. The film also includes a barrier layer (34,34') of an impermeable material that prevents air from entering the container during transit and storage and prevents blockage of the porous layer with dried fluid. Before dispensing, the film is stretched, thereby destroying the integrity of the barrier layer and allowing air to enter through the porous layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile