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. 11, 2017
Filed:
Oct. 09, 2008
Andrey V. Livchak, Bowling Green, KY (US);
Derek W. Schrock, Bowling Green, KY (US);
Darrin W. Beardslee, Bowling Green, KY (US);
Andrew C. Faller, Smiths Grove, KY (US);
Andrey V. Livchak, Bowling Green, KY (US);
Derek W. Schrock, Bowling Green, KY (US);
Darrin W. Beardslee, Bowling Green, KY (US);
Andrew C. Faller, Smiths Grove, KY (US);
OY HALTO GROUP LTD., Vantaa, FI;
Abstract
A flow control device has a duct section with a plurality of damper blocking elements, each having a major plane. The damper blocking elements are pivotably connected to the duct section and movable in a range that is limited to ensure that, when the duct section is mounted in a preferred orientation, the damper blocking element major planes always form an angle of at least 45 degrees from the horizontal throughout the range. The range is such that the plurality of damper blocking elements can selectively close and open the duct. The blocking elements can completely close the duct, for example, to block natural convection.