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. 19, 2016
Filed:
Jul. 06, 2012
Applicants:
Joseph Dean Enke, Kansas City, MO (US);
Edward N. Koop, Olathe, KS (US);
Inventors:
Joseph Dean Enke, Kansas City, MO (US);
Edward N. Koop, Olathe, KS (US);
Assignee:
Ruskin Company, Grandview, MO (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24F 13/14 (2006.01); F24F 13/15 (2006.01);
U.S. Cl.
CPC ...
F24F 13/14 (2013.01); F24F 13/1406 (2013.01); F24F 13/1413 (2013.01);
Abstract
A damper having a first seal and a second seal disposed to cooperatively engage an adjacent first blade end portion and second blade end portion such that a dead air space is created between the adjacent first seal and second seal in a damper closed position, and a first thermal gap and a second thermal gap disposed within said dead air space in the damper closed position.