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:
Feb. 14, 2012
Filed:
Mar. 02, 2009
Carl David Hardison, Iii, Preston, IA (US);
James C. Boerger, Franksville, WI (US);
Peter S. Schulte, East Dubuque, IL (US);
Thomas Jansen, Dubuque, IA (US);
Carl David Hardison, III, Preston, IA (US);
James C. Boerger, Franksville, WI (US);
Peter S. Schulte, East Dubuque, IL (US);
Thomas Jansen, Dubuque, IA (US);
Rite-Hite Holding Corporation, Milwaukee, WI (US);
Abstract
An example of a door with a pliable curtain includes various washdown features that make the door particularly suitable for use in food and drug related environments that demand cleanliness. To prevent product contamination, such as bacteria and other microorganisms, some examples of the door include a curtain storage track with a spiral groove machined in a unitary block of plastic, a ventilated side frame with a removable curtain guide track and a removable seal, and various curtain seams that not only join multiple sheets of the curtain together but also promote and strategically direct liquid runoff to avoid creating water-holding surfaces and to prevent liquid from dripping on products passing through the doorway.