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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.:

US 5477155 B1

PDFFull Text
Date of Patent:
Dec. 19, 1995

Filed:

Aug. 11, 1993

Current flow integrity test

Applicant:
Inventors:

Stephen Proulx, Littleton, MA (US);

John L Burns, Jr, Dracut, MA (US);

Scott Emory, Boston, MA (US);

Richard W Gray, Chestnut Hill, MA (US);

Frank M Lentine, Bedford, MA (US);

Assignee:

Millipore Corporation, Bedford, MA (US);

Attorneys:

Karnakis; Andrew T.

Cook; Paul J.

Primary Examiner:

Maura K Regan

Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
324 711 ; 324439 ;
Abstract

A new method and apparatus is described for conducting an integrity test on porous membranes and membrane filters and for conducting a pore-size characterization of membrane. The method and apparatus apply to membrane integrity tests and pore-size characterizations which are based on the dependence on the pore size of the pressure required to intrude a non-wetting, electrically conductive liquid into and through the pores. Electrical-measurement methods are described for identifying the pressure at which intrusion occurs.

Find Patent Forward Citations

Proulx, Stephen. (1995). Current flow integrity test (U.S. Patent No. 5477155). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5477155

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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