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:
Aug. 25, 2009
Filed:
Sep. 19, 2003
Jason Dondlinger, Bellevue, IA (US);
Tom Jansen, Dubuque, IA (US);
Frank Heim, Platteville, WI (US);
Kevin J. Gebke, Dubuque, IA (US);
Jason Dondlinger, Bellevue, IA (US);
Tom Jansen, Dubuque, IA (US);
Frank Heim, Platteville, WI (US);
Kevin J. Gebke, Dubuque, IA (US);
Rite-Hite Holding Corporation, Milwaukee, WI (US);
Abstract
A door for a cold storage locker or other applications includes an inflatable or fluid-filled seal system. The seal system comprises a network of pliable tubular seals that expand as air or another fluid is forced air through the seals. Expansion of the seals provides a more positive seal. To inhibit frost from accumulating near the seals, the seals are kept relatively warm by continuously circulating fluid through the seals regardless of whether the door is open or closed. In some cases, the fluid within the seals is heated.