Tire pressure sensors and methods of making the same

Details Tire pressure sensors and methods of making the same Tire pressure sensors and methods of making the same

2006-06-13

2006-06-13

Ortiz, Angela (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

C264S272170, C264S278000, C438S112000, C438S106000

Reexamination Certificate

active

07060216

ABSTRACT:
The elements of a tire pressure monitoring and transmitting system are encapsulated into a single package. A pressure sensitive device is covered with a flexible gel coat and then inserted into a molding tool cavity. A removable pin is incorporated into the molding tool and in its normal position is in contact with the gel. A molding compound is injected into the cavity so as to encapsulate the device and gel coat. When the pin is extracted and the device ejected from the molding cavity, an airway is left defined by the removable pin. The airway exposes the flexible gel covering the pressure sensitive device to the local air pressure, whereby the gel, being flexible, transfers the pressure to the pressure sensitive device.

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