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US 4,396,511 AGranted
Cleaning apparatus for curved filter screens
AssigneePassavant-Werke Michelbacher Huette
InventorKarl Neumann
Life of this patent
Estimating the term…
Abstract
A boom is mounted for pivotal movement about the center from which the arcuate shape of a filter screen is struck and a cleaner is pivoted to the free end of the boom. A single reversible drive unit is operatively connected to the cleaner for exerting a force thereto to tilt the cleaner toward a cleaning position. A stop operatively and rigidly connects the cleaner to the boom to transmit force from the cleaner to the boom as a pivotal force only after the cleaner is tilted to the cleaning position to thus rigidly connect the drive unit and cleaner to the boom.
Claims16
Cleaning apparatus for a filter screen comprising:
- (a) a curved filter screen in the shape of a circular arc,
- (b) a boom mounted for free pivotal movement about the center of the circular arc of said screen,
- (c) a cleaner pivotally connected to the end of said boom and movable up and down relative to said screen upon pivotal movement of said boom and being tiltably relative to said boom,
- (d) a single reversible drive unit operatively connected by a connecting rod to said cleaner for exerting a force thereto to tilt said cleaner toward a cleaning position on the screen and to a return position tilted away from the screen, and
- (e) stop means operatively and rigidly connecting said cleaner to said boom and transmitting said force from said cleaner to said boom as a pivotal force only after said cleaner is tilted to said cleaning position and said return position, respectively.
2 more elements
Dependencies are inferred from the claim text.