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:
Feb. 22, 2011
Filed:
Mar. 02, 2007
Kenneth Arthur Logan, Callaghan, AU;
Paul Christopher Dastoor, Callaghan, AU;
Ian Wesley Robert Clarke, Callaghan, AU;
Peter J. Hester, Revesby, AU;
Kenneth Arthur Logan, Callaghan, AU;
Paul Christopher Dastoor, Callaghan, AU;
Ian Wesley Robert Clarke, Callaghan, AU;
Peter J. Hester, Revesby, AU;
Keystone Medical Pty Ltd, Morisset, New South Wales, AU;
Abstract
A fluid flow indicator for observation of low flow rates in liquids includes a capillary tube () slidably mounted at each end in passageways () and () and biased into a no-flow indicating position by a castellated elastomeric membrane () providing a sealed barrier within a chamber () between a first zone () and a second zone (). Fluid flow introduced through spigot () causes the capillary tube () to slide to the opposite end of the passageways () and () whereupon the deformed position of the elastomeric membrane () can readily be observed through transparent walls () in the chamber (). Upon cessation of flow, the elastomeric membrane () causes the capillary tube () to revert to its original position.