Back to results
US 5,493,160 AGranted
Air filter for electric motors
OwnerThomas J. Botteninventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a filter assembly for capturing particles in electric motor exhaust streams. That assembly comprises a filter of extended surface area, including filter material and a frame substantially wrapped by the filter material, and a securing means, preferably a C-shaped channel, for receiving the filter frame. In operation, the filter is slid into the channel and is held securely by the channel so that a positive seal is formed between the channel and the filter as an exhaust stream is passed through the filter.
Claims8
A filter assembly for capturing particles in electric motor exhaust streams comprising:
- a filter (i) a filter material made from a substantially amorphous network of fibers and (ii) a frame substantially wrapped by the filter material, the filter material having an extended surface area and defining a surface that is closed except for an open area defined by the frame;
- channel means for securing the filter to a motor housing at an exhaust vent in the housing;
- whereby the filter is slid into the channel means with the open area adjacent to the exhaust vent and is held securely by the channel means so that a positive seal is formed between the channel means and the filter as an exhaust stream is passes through the filter.
Dependencies are inferred from the claim text.