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.

Date of Patent:
Jul. 03, 1984

Filed:

Jul. 26, 1982
Applicant:
Inventor:

Kenneth V Pepper, Elkhart Lake, WI (US);

Assignee:

Bemis Manufacturing Company, Sheboygan Falls, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137 67 ; 206438 ; 220201 ; 220202 ; 220209 ; 422112 ; 422113 ; 422114 ; 422310 ;
Abstract

A unique temperature responsive operating mechanism is disclosed which is particularly suited for embodiment as a temperature responsive valve mechanism for use with a steam sterilization container. The mechanism includes a valve operating member which is movable by the action of a biasing spring from a first, opened position to a second, closed position with respect to an opening defined by the sterilization container. The mechanism further includes a temperature responsive, heat deformable member operatively associated with the biasing spring and the valve operating member to provide progressive movement of the valve operating member from its first to its second position in response to an elevation in temperature of the environment of the operating mechanism. Desired communication is provided between the interior and exterior of the sterilization container during a substantial portion of the steam sterilization process, with the mechanism subsequently tightly sealing the container. The mechanism further functions in the nature of one-way valve to permit escape of vapor pressure from the sterilization container to assure that the contents therein are properly dried during the vacuum drying cycle of the steam sterilization process.


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