Radon removal apparatus
First Claim
1. A gas venting system for a building including a basement, a basement floor and a side wall comprisinga single continuous pipe having one end disposed beneath the basement floor and the other end extending through the side wall of the building,a fan coupled to the outer wall of the side wall of the building,said pipe being secured to said fan,a pipe extending from said fan vertically to draw gas pulled by the fan away from the building, anda low voltage D.C. motor coupled to and driving said fan and including a current limiter, the speed of operation of said motor varying with the load on said motor, with the speed increasing as the load increases.
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Accused Products
Abstract
The radon removal system includes one or more pipes coupled to the source of radon gas beneath the basement floor in a building. The pipes are coupled through the side wall of the basement to a fan which draws the radon out of the basement and away through piping coupled to the fan housing. The fan has a DC motor which is current limited to improve its operation. In addition, a vacuum switch is provided in the fan housing to sense proper operation of the fan. The switch is coupled to a signal light at the power cord inside the basement to indicate when the fan is operating properly.
32 Citations
8 Claims
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1. A gas venting system for a building including a basement, a basement floor and a side wall comprising
a single continuous pipe having one end disposed beneath the basement floor and the other end extending through the side wall of the building, a fan coupled to the outer wall of the side wall of the building, said pipe being secured to said fan, a pipe extending from said fan vertically to draw gas pulled by the fan away from the building, and a low voltage D.C. motor coupled to and driving said fan and including a current limiter, the speed of operation of said motor varying with the load on said motor, with the speed increasing as the load increases.
Specification