Abstract: A catch basin erosion containment filter assembly. The filter assembly includes a rigid frame and a containment bag attached at its open end to the frame. The frame is adapted to be seated and/or held in the horizontal or vertical opening to a catch basin. The bag has one or more layers, preferably at least two layers. The outer layer is preferably a woven geotextile fabric and the inner layer is preferably a nonwoven geotextile fabric. A hydrocarbon absorbent layer, such as a nonwoven oileophilic fabric, may be located between the inner and outer layers for capturing spilled fuel and/or oil.

Abstract: A catch basin curb inlet filter assembly for preventing debris from being swept into the catch basin by rainwater. The filter assembly has first and second outer filters, an inner filter located between said first and second outer filters adjacent the lower longitudinal edges thereof, and a rigid rib member located between the first and second outer filters. The first and second outer filters have identical configurations. Each of the first and second outer filters may be provided with an overflow passageway adjacent the mid-portion of the top edges thereof. The first and second outer filters, inner filter, and rigid rib member are attached together to form the filter assembly. At least two strap openings extend through the filter assembly to permit a flexible or rigid strap to pass therethrough for attaching the assembly to the curb grate of a catch basin.

Abstract: A capacitance charge transfer sensing and control system for a venting system. Preferably the sensing and control system is used with a toilet having an integrated venting system which includes ducting communicating with an exhaust air passageway located in the toilet bowl and an exhaust fan to draw air from the bowl and exhaust it outside. A sensing electrode, such as a wire antenna, is located in a covered location adjacent the toilet bowl, preferably in the exhaust air passageway located in the bowl of an integrated toilet venting system. The wire antenna is connected to a detection and motor control circuit which can detect a change in capacitance of the wire antenna upon a person entering into close proximity thereto. A micro-controller in the detection and motor control circuit is programmed to generate a circuit closing signal to an electric switch located in the circuit between a power source and the exhaust fan in response to a minimum pre-selected increase in the capacitance of the wire antenna.

Abstract: A catch basin curb inlet filter assembly for preventing debris from being swept into the catch basin by rainwater. The filter assembly has first and second outer filters, an inner filter located between said first and second outer filters adjacent the lower longitudinal edges thereof, and a rigid rib member located between the first and second outer filters. The first and second outer filters have identical configurations. Each of the first and second outer filters may be provided with an overflow passageway adjacent the mid-portion of the top edges thereof. The first and second outer filters, inner filter, and rigid rib member are attached together to form the filter assembly. At least two strap openings extend through the filter assembly to permit a flexible or rigid strap to pass therethrough for attaching the assembly to the curb grate of a catch basin.

Abstract: A capacitance charge transfer sensing and control system for a venting system. Preferably the sensing and control system is used with a toilet having an integrated venting system which includes ducting communicating with an exhaust air passageway located in the toilet bowl and an exhaust fan to draw air from the bowl and exhaust it outside. A sensing electrode, such as a wire antenna, is located in a covered location adjacent the toilet bowl, preferably in the exhaust air passageway located in the bowl of an integrated toilet venting system. The wire antenna is connected to a detection and motor control circuit which can detect a change in capacitance of the wire antenna upon a person entering into close proximity thereto. A micro-controller in the detection and motor control circuit is programmed to generate a circuit closing signal to an electric switch located in the circuit between a power source and the exhaust fan in response to a minimum pre-selected increase in the capacitance of the wire antenna.