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:
Mar. 05, 2019
Filed:
Feb. 28, 2017
Applicant:
Fisher Controls International Llc, Marshalltown, IA (US);
Inventors:
Daniel J. Eilers, Marshalltown, IA (US);
Allen C. Fagerlund, Marshalltown, IA (US);
Assignee:
FISHER CONTROLS INTERNATIONAL LLC, Marshalltown, IA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 47/02 (2006.01); F16K 5/06 (2006.01); F16K 47/04 (2006.01);
U.S. Cl.
CPC ...
F16K 47/02 (2013.01); F16K 5/06 (2013.01); F16K 5/0605 (2013.01); F16K 5/0657 (2013.01); F16K 47/045 (2013.01);
Abstract
A ball valve may include a control element including a perforated screen disposed within the control element and spaced apart from an inner surface of the control element to form an annular space and a plurality of chambers disposed within the control element. When fluid flows through the control element, sound waves pass through the perforated screen and are reflected back by the plurality of chambers to disrupt other sound waves, thereby reducing fluid noise in the rotary valve.