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, 2001
Filed:
Oct. 25, 1999
Applicant:
Inventors:
Donald Rising, Stow, MA (US);
John F. Zettler, Stow, MA (US);
Assignee:
Stargaze Corporation, Braintree, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
F16K 3/00 ; G05D 7/06 ;
U.S. Cl.
CPC ...
F16K 3/00 ; G05D 7/06 ;
Abstract
A variable orifice valve for controlling fluid flow in a conduit, comprising a band or other movable members defining an opening for passing the fluid therethrough, the band mounted transverse to the direction of fluid flow in the conduit, so that the band opening is at least partially in the conduit. The band is movable relative to the conduit, to change the amount of the opening exposed to fluid flow.