Device for controlling the tire pressure of automobiles by means of a battery-powered circuit
First Claim
1. An apparatus for monitoring tire pressure on automobiles, having an arrangement (1), intended for installation into a wheel, made up of a pressure sensor, a transmitter, and a circuit for operating the pressure sensor and transmitter, and having a battery (2) which supplies the circuit with power via a power supply line (3), the arrangement (1) and the battery (2) being located in a sealed housing (9), wherein there is located in the power supply line (3) an electronic switch (4) which has a control electrode (5) and is nonconductive when the control electrode (5) is connected to ground, where the line (6) can be permanently interrupted between the control electrode (5) and ground by a measure to be effected on the housing (9), for purposes of setting the arrangement into operation.
4 Assignments
0 Petitions
Accused Products
Abstract
An apparatus for monitoring tire pressure on automobiles, having an arrangement (1), intended for installation into a wheel, made up of a pressure sensor, a transmitter, and a circuit for operating the pressure sensor and transmitter, and having a battery (2) which supplies the circuit with power via a power supply line (3), the arrangement (1) and the battery (2) being located in a sealed housing (9). Located in the power supply line (3) is an electronic switch (4) which has a control electrode (5) and is nonconductive when the control electrode (5) is connected to ground.
25 Citations
9 Claims
- 1. An apparatus for monitoring tire pressure on automobiles, having an arrangement (1), intended for installation into a wheel, made up of a pressure sensor, a transmitter, and a circuit for operating the pressure sensor and transmitter, and having a battery (2) which supplies the circuit with power via a power supply line (3), the arrangement (1) and the battery (2) being located in a sealed housing (9), wherein there is located in the power supply line (3) an electronic switch (4) which has a control electrode (5) and is nonconductive when the control electrode (5) is connected to ground, where the line (6) can be permanently interrupted between the control electrode (5) and ground by a measure to be effected on the housing (9), for purposes of setting the arrangement into operation.
Specification