US 10,094,741 B2Granted

Obstruction detecting system for motor vehicle exhaust pipes

OwnerRuth Anne Gougian, Susan Lucia Gougianinventors

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Abstract

An obstruction detecting system for identifying the existence of an obstruction or a partial obstruction in or at the opening of a motor vehicle exhaust pipe. The obstruction detecting system may include a sensor having the ability to detect an obstruction or a partial obstruction in a motor vehicle exhaust system. The obstruction detecting system may include a logic device, a plurality of relays, an alarm, and a motor. The obstruction detecting system may be contained in a housing that is capable of being mounted in or near a motor vehicle exhaust system. When the obstruction detecting system senses an obstruction or a partial obstruction in or at the opening of the exhaust pipe, the system may send an electrical signal to an alarm, which may be a visual alarm, an audible alarm, or both. The alarm may be located in the vehicle control panel, and may alert the operator and passengers of a motor vehicle of an obstruction or a partial obstruction in or at the opening of a motor vehicle exhaust pipe, when the motor is operating. The obstruction detecting system may send an electrical signal to a motor for the purpose of lowering a window in a motor vehicle.

Claims4

Dependent claims

An obstruction detecting system to detect an obstruction or a partial obstruction in or at the opening of a motor vehicle exhaust pipe comprising:

a differential pressure sensor, a programmable logic device, a plastic tubing, a metal tube, a relay, and an alarm;
said differential pressure sensor for detecting an obstruction or a partial obstruction in or at the opening of a motor vehicle exhaust pipe;
said differential pressure sensor connected to said programmable logic device;
said differential pressure sensor for sending an electrical signal to said programmable logic device in response to applied air pressure;
said programmable logic device connected to said relay;
said programmable logic device for sending an electrical signal to said relay if an obstruction or a partial obstruction is detected in or at the opening of a motor vehicle exhaust pipe;
said plastic tubing connected to said differential pressure sensor;
said plastic tubing for conveying air from a motor vehicle exhaust pipe to said differential pressure sensor;
said metal tube connected to said plastic tubing;
said metal tube for inserting through a hole drilled into a motor vehicle exhaust pipe;
said metal tube for conveying air from a motor vehicle exhaust pipe to said plastic tubing;
said relay connected to said alarm;
said relay for sending an electrical signal to said alarm if an obstruction or a partial obstruction is detected in or at the opening of a motor vehicle exhaust pipe;
said alarm for alerting occupants of a motor vehicle if an obstruction or a partial obstruction is detected in or at the opening of a motor vehicle exhaust pipe;
said alarm being a visual alarm, an audible alarm, or both.

12 more elements

Dependencies are inferred from the claim text.