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:
Apr. 05, 1994
Filed:
May. 12, 1992
Applicant:
Inventor:
Ronald F Cassidy, Hampshire, GB;
Assignee:
Pall Corporation, Glen Cove, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L / ;
U.S. Cl.
CPC ...
116267 ;
Abstract
A differential pressure indicator is of the type which uses a magentically attracted spring loaded pop-up button to indicate when the pressure difference between two fluids reaches a predetermined difference. In order to reduce or eliminate false readings caused by fretting between the button and a housing passage in which it slides the button and the passage have a square cross-section to prevent rotation.
Cassidy, Ronald. (1994). Indicators (U.S. Patent No. 5299526). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5299526
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile