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:
Dec. 04, 2018
Filed:
Dec. 10, 2009
Applicant:
Thomas Graham, Ocean, NJ (US);
Inventor:
Thomas Graham, Ocean, NJ (US);
Assignee:
COMPONENT HARDWARE GROUP, INC., Lakewood, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F 13/10 (2006.01); F24F 13/18 (2006.01); F24F 7/00 (2006.01); F25D 17/04 (2006.01);
U.S. Cl.
CPC ...
F24F 7/00 (2013.01); F25D 17/047 (2013.01); F24F 2007/003 (2013.01); F24F 2221/34 (2013.01);
Abstract
The vent port employs a pair of mated housing parts that define a space for two flap valves. Each flap valve is formed of an aluminum bracket with an aperture for the passage of air and a silicone flap that closes over the aperture. The flap valves are oriented so that gravity enhances the closing of the flaps. Resistors are mounted on the brackets to heat the brackets at a low wattage. In one embodiment, the flap valves are vertically arranged over each other. In another embodiment, the flap valves are horizontally disposed in criss-crossing relation.