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:
Jun. 30, 1998
Filed:
Dec. 11, 1995
Allan Jaikaran, San Fernando, TT;
Other;
Abstract
A pair of strainer systems in parallel provide continuous filtration of solids from an influent stream. In influent strikes a filtration medium in the form of a porous membrane at an angle other than the perpendicular to create a washing action to remove filtrate from the surface of the porous membrane. As filtrate builds up on the surface of the porous membrane, the pressure differential across the strainer increases to a first setpoint which activates a motor which drives a wiper blade to scrub filtrate off the surface of the porous membrane. Ultimately, solids build up within the pores of the porous membrane to a point where the wiper blade is no longer effective to lower the differential pressure across the strainer to an acceptable level. When this happens, a differential pressure signal isolates the operations strainer and places the standby, parallel strainer in service. Filtrate scrubbed from the surface of the porous membrane is collected in a sump and occasionally drained or flushed from the system.