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:
Jan. 05, 2016
Filed:
Apr. 03, 2013
Applicant:
Robert Hansen, Oakdale, MN (US);
Inventor:
Robert Hansen, Oakdale, MN (US);
Assignee:
DYNAMIC AIR INC, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 1/22 (2006.01); F16K 1/228 (2006.01); F16K 37/00 (2006.01);
U.S. Cl.
CPC ...
F16K 1/2285 (2013.01); F16K 1/222 (2013.01); F16K 1/224 (2013.01); F16K 1/228 (2013.01); F16K 37/0041 (2013.01); Y10T 137/0525 (2015.04); Y10T 137/8225 (2015.04);
Abstract
A lightweight butterfly valve having a disk maintained in a fixed position on a compound shaft through an interlocking relation ship between each of the individual shafts of the compound shaft and the disk as the disk is moveable between an open or closed position with the butterfly valve may having other features such as an electric drive to quickly rotate the compound shaft to provide for rapid opening and closing the butterfly valve, a disk position indicator and a shaft stop to prevent the disk from being driven past a full open condition.