Bar screen filter apparatus and method
AssigneeParkson Corporation
InventorsJames K. Simonelli, Walter B. Stanek
Life of this patent
Estimating the term…
Abstract
An apparatus for removing debris from water in a channel includes a bar screen assembly having a plurality of spaced apart, elongated filter bars arranged in a parallel relationship. A continuous conveyor carries a plurality of rakes. Each rake includes a plurality of spaced-apart tines interdigitated with the filter bars as the rake is moved along the filter bars by the conveyor to remove debris from the bar screen assembly. A conveyor belt retaining system includes at least one guide engaging an upstream side of an inner run of the conveyor and a counterweight connected to the at least one guide for biasing the inner run in a downstream direction.
Claims13
A bar screen assembly for removing debris from water flowing through a channel, comprising:
- a plurality of elongate, spaced apart, parallel filter bars;
- a continuous conveyor including:
- a frame;
- a pair of spaced apart endless link loops movably mounted on the frame;
- a plurality of rakes extending between and connected to each of the endless link loops, each rake including a plurality of spaced apart tines interdigitated with the parallel filter bars, where, as each rake is moved along the parallel filter bars by the endless link loops, it is capable of removing debris from the parallel filter bars;
- a drive mechanism for moving the pair of endless link loops about the frame, is connected to the endless link loops;
- an endless link loop retaining system including:
- a first guide capable of biasingly engaging an upstream side of an inner run of one of said endless link loops;
- a first arm pivotally attached to the frame and having an end connected to the first guide;
- a second guide capable of biasingly engaging the upstream side of the same endless link loop to be engaged by the first guide;
- a second arm pivotally attached to the frame and having an end connected to the second guide;
- and
- a first counterweight connected to another portion of each arm and capable of causing the first and second guides to biasingly engage the inner run in a downstream direction.
Dependencies are inferred from the claim text.