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:
Jul. 05, 2022
Filed:
Feb. 17, 2017
Applicants:
Philip Preston, Northfield, IL (US);
Thomas P. Wallbaum, Mt. Prospect, IL (US);
Inventors:
Philip Preston, Northfield, IL (US);
Thomas P. Wallbaum, Mt. Prospect, IL (US);
Assignee:
Preston Industries, Inc., Niles, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25B 47/00 (2006.01); F25B 25/00 (2006.01); F25B 39/04 (2006.01);
U.S. Cl.
CPC ...
F25B 47/00 (2013.01); F25B 25/005 (2013.01); F25B 39/04 (2013.01); F25B 2700/21151 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21172 (2013.01); F25B 2700/21173 (2013.01);
Abstract
An automatic and dynamic filter window for the air inlet to a chiller or cooler is disclosed, including a controller and a scrolling filter for replacing filters prior to clogging or contamination that may compromise the operation of the chiller.