Tire pressure monitoring system with a capped tire valve

• US 7,764,168 B1
• Filed: 05/04/2007
• Issued: 07/27/2010
• Est. Priority Date: 05/04/2007
• Status: Active Grant

• Current Assignee: Mobiletron Electronics Co. Ltd.
• Original Assignee: Mobiletron Electronics Co. Ltd.
• Inventors: Huang, Shiao-Hwa
• Primary Examiner(s): Goins; Davetta W
• Assistant Examiner(s): LAU, HOI CHING
• Application Number:
  US11/744,443
• Time in Patent Office: 1,180 Days
• Field of Search: 340/442, 340/447, 340/446, 340/445, 731/463, 731/465, 731/468, 137/227
• US Class Current: 340/442
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60C 23/0496 Valve stem attachments positioned outside of the tyre chamber

Abstract

The present invention is a tire pressure monitoring system (TPMS) with a capped tire valve. The system includes a baseplate, a signal transmitter, a cap, and an antenna. The antenna is assembled at the bottom of the baseplate, and also positioned outside the connecting end of the baseplate. Thus, the volume of TPMS is considerably reduced, providing resistance to collision and pollution with improved applicability.

Claims

1. A tire pressure monitoring system, which is connected to a capped tire valve of a tire, comprising:

a baseplate having a connecting end with an air hole at a center of a bottom thereof to connect the capped tire valve and an antenna container surrounding the connecting end, and further having a bored groove on a top thereof;

a cap detachably connected to the top of the baseplate to form an overhead container therein, so that the overhead container and the antenna container are separated by the baseplate, and the bored groove communicates the overhead container and the antenna container;

an antenna received in the antenna container of the baseplate;

a signal transmitter, which is received in the overhead container, having a signal conducting wire connected to the antenna through the bored groove; and

a power supply received in the overhead container and above the signal transmitter to provide the signal transmitter power, wherein the power supply includes a battery with a bottom end conducted with the signal transmitter and a cover body with a spring conducted with a top end of the battery.

2. The tire pressure monitoring system as defined in claim 1, wherein the antenna container is open at the bottom of the baseplate.

3. The tire pressure monitoring system as defined in claim 1, wherein the cover body further has a plurality of flexible ribs.

4. The tire pressure monitoring system as defined in claim 3, wherein each of the ribs has a flange at a distal end thereof.

5. The tire pressure monitoring system as defined in claim 1, wherein the power supply further includes a ring body to receive the battery therein.