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. 24, 2000
Filed:
Aug. 13, 1998
Lori B Herbst, Englewood, CO (US);
Robert Herbst, Englewood, CO (US);
Other;
Abstract
A water/sludge filter press used with a filter bag for filtering water and collecting sludge in the bag. When the filter press is actuated, the filter bag is compressed therein for dewatering the sludge in the bag for ease in removing the sludge and reusing the bag or replacing the bag. The filter press includes a horizontal stand with an upright vertical press frame. A hydraulic cylinder with piston is mounted on the vertical press frame. Attached to the vertical press frame is an open-top housing adapted for receiving the filter bag therein. The sides and bottom of the housing are lined with screens for passing filtered water therethrough. The housing includes a first vertical side, a second vertical side, a stationary vertical press plate, a vertical movable press plate and a foldable bottom. The foldable bottom includes a pair of pivot arms attached to the piston of the hydraulic cylinder. The foldable bottom is also attached to a lower end of a pair of coil springs. An upper end of the coil springs is attached to one end of a pair of spring arms. An opposite end of the spring arms is attached to the vertical movable press plate and the vertical stationary press plate. When the hydraulic cylinder is actuated, the piston moves upwardly pivoting the pivot arms downwardly folding the bottom and moving the movable press plate inwardly in the filter housing. At this time the filter bag is compressed between the stationary press plate and the movable press plate with the sludge therein being compressed and dewatered.