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.:

US 6818178 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 16, 2004

Filed:

Aug. 01, 2002
Applicant:
Inventors:

Nelson E. Kohl, Philadelphia, PA (US);

Richard J. Falkowski, Folsom, PA (US);

Assignee:

Environmental Tectonics Corporation, Southampton, PA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61L 2/08 ; A61L 2/00 ; G01N 2/100 ; A45B 1/100 ; E04H 1/536 ;
U.S. Cl.
CPC ...
A61L 2/08 ; A61L 2/00 ; G01N 2/100 ; A45B 1/100 ; E04H 1/536 ;
Abstract

A heat sterilization process for small, washed, and bagged articles such as vial stoppers includes a conditioning or air removal phase prior to sterilization. During the air removal phase, a substantial majority of the liquid moisture is removed from the bagged articles by introducing brief periods of dry, warm air to the autoclave chamber. The air is introduced in short bursts at the point of greatest vacuum while pressure pulsing the chamber during the air removal phase. The air is heated and injected into the chamber through a supply valve which is rapidly opened and closed while the chamber is maintained within a preselected vacuum range between the pressure pulses. The result is a greatly reduced time for a complete sterilization and drying process.


Find Patent Forward Citations

Kohl, Nelson. (2004). Method for high vacuum sterilization of closures (U.S. Patent No. 6818178). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6818178

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