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:
Oct. 01, 1991
Filed:
Apr. 17, 1989
Ian J Clarke-Pounder, Nashua, NH (US);
Richard L Smythe, Senneville, CA;
Marcel A Carboneau, Sherbrooke, CA;
Ingersoll-Rand Company, Woodcliff Lake, NJ (US);
Abstract
Disclosed is an adjustable valve for use with filters wherein internal valve partition members effect the relative duration and timing of withdrawal of the atmospheric and vacuum portion of filtrate from the filter. The valve further provides for the distribution of filtrate to clear or cloudy sump wells depending on the concentration of particulate matter contained in the filtrate portions. Timing and apportioning of the filtrate is accomplished by a combination timing plate and valve housing containing movable valve partitions, the valve body being in communication with a vacuum box and atmospheric drains.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile