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. 03, 2001
Filed:
Nov. 18, 1999
Avraham Shekalim, Nesher, IL;
Medrip Ltd., Migdal Haemek, IL;
Abstract
A fluid flow regulator of a type having a variable outlet defined by a spacing between an outlet aperture and a flexible diaphragm, and in which the position of the flexible diaphragm varies as a function of a pressure differential between a sensing chamber on a first side of the diaphragm and an outlet chamber on a second side of the diaphragm. The regulator includes an adjustable flow impedance configuration in the flow path from the sensing chamber to the outlet chamber has a two elements providing opposing cylindrical surfaces in sliding contact. One of the cylindrical surfaces has a groove configured to define a flow-attenuating passageway having a net flow vector substantially parallel to the axis of the cylindrical surfaces. Axial relative movement between the elements causes a variation in an extent of overlap between the cylindrical surfaces, thereby varying an operative length of the flow-attenuating passageway.