Resumes
Resumes
Daniel Preuss Phones & Addresses
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500 Dupont Ave, Madison, TN 37115 (615) 860-1008
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311 Sarver Ave, Madison, TN 37115
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Genoa City, WI
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Wheeling, IL
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Nashville, TN
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311 Sarver Ave, Madison, TN 37115 (615) 509-2062
Work
Position:
Precision Production Occupations
Education
Degree:
Associate degree or higher
Publications
Us Patents
Method And Apparatus For The Clean Replacement Of Contaminated Hepa Filters
View pageUS Patent:
6364923, Apr 2, 2002
Filed:
Jul 14, 2000
Appl. No.:
09/616419
Inventors:
Stanley G. Wiedmeyer - Glen Ellyn IL
Arthur A. Frigo - Downers Grove IL
Daniel Preuss - Hinsdale IL
Edward F. Bielick - Darien IL
Richard F. Malecha - Naperville IL
Arthur A. Frigo - Downers Grove IL
Daniel Preuss - Hinsdale IL
Edward F. Bielick - Darien IL
Richard F. Malecha - Naperville IL
Assignee:
The University of Chicago - Chicago IL
International Classification:
B01D 5000
US Classification:
553852, 55502, 55DIG 18, 55DIG 46, 454187
Abstract:
A method and apparatus are provided for the replacement of contaminated HEPA filters without contamination of the surrounding environment. A filter housing is generally cylindrical and defines a filter receiving cavity. The filter housing having a filter receiving end and a filter removing end. An active HEPA filter is received within the filter housing cavity and is located near the filter removing end. A backup HEPA filter is received within the filter housing cavity and is located near the filter receiving end. A change-out bag is received within the filter housing cavity and is located adjacent to the filter removing end. The filter housing includes a gas flow path through the active HEPA filter without passing through the backup HEPA filter. For the replacement of contaminated HEPA filter, end covers are removed from the filter receiving end and the filter removing end of the filter housing and the change-out bag is opened. The backup HEPA filter is pushed into position of the active HEPA filter, thereby moving the active contaminated HEPA filter into the change-out bag during filter replacement.