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:
Sep. 11, 1990
Filed:
Dec. 30, 1987
Arthur L Cummings, Erie, PA (US);
Robert W Childers, Erie, PA (US);
American Sterilizer Company, Erie, PA (US);
Abstract
A sterilization method including the steps of injecting a hydrogen peroxide and water vapor mixture into a closed sterilization chamber of a predetermined volume at a predetermined temperature in an initial amount up to the saturation limit of such vapor mixture and thereafter, injecting a plurality of intermittent make-up injections of such vapor mixture into the chamber. The rate of the make-up injections and the amount of each such make-up injection is based on the rate and amounts necessary to maintain the concentration of hydrogen peroxide vapor at a level effective for sterilization but less than that which would raise the concentration of the vapor mixture to the saturation limit which will be present in the chamber immediately following injection of a make-up injection.