Monitoring device and patch assembly

• US 7,331,367 B2
• Filed: 05/07/2002
• Issued: 02/19/2008
• Est. Priority Date: 03/31/2000
• Status: Expired due to Term

• Current Assignee: Bridgestone Firestone North American Tire LLC (Bridgestone Corporation)
• Original Assignee: Bridgestone Firestone North American Tire LLC (Bridgestone Corporation)
• Inventors: Sears, Robert John, Koch, Russell W., Przygocki, David A., Loudin, Philip B.
• Primary Examiner(s): Knable; Geoffrey L.
• Application Number:
  US10/140,607
• Publication Number:
  US 20020124934A1
• Time in Patent Office: 2,114 Days
• Field of Search: 152/152.1, 152/367, 73146-1465, 340/442, 340445-448
• US Class Current: 152/152.1
• CPC Class Codes: B60C 23/0493 for attachment on the tyre

Abstract

A monitoring device and patch assembly and method for forming the assembly is disclosed wherein the patch includes a platform and at least a portion of the monitoring device is positioned adjacent the patch. At least a portion of the monitoring device and platform are encapsulated to connect the monitoring device to the patch.

Claims

1. In combination:

a pneumatic tire having an inner surface;

a monitoring package for a tire monitoring device;

a flexible rubber patch for mounting the monitoring package to the inner surface of the pneumatic tire;

the patch comprising a flexible rubber body having a first side, a second side, and a platform extending from the first side;

the body being fabricated from a material;

the second side of the rubber patch being mounted to the inner surface of the tire; and

at least first and second layers of encapsulation material cooperating to substantially surround the monitoring package and at least a portion of the platform to connect the monitoring package to the patch;

a first layer of the encapsulation material having been directly applied and then cured to the platform so as to directly and securely bond with the material of the platform;

the first layer of encapsulation material being disposed between the monitoring package and the platform;

the second layer of encapsulation material having been directly applied and then cured to the first layer so as to directly and securely bond with the first layer of encapsulation material.

2. The combination of claim 1, wherein the platform has an overhang;

the first layer of encapsulation material substantially surrounding the overhang of the platform.

3. The combination of claim 1, further comprising an antenna substantially surrounded by the encapsulation material;

the antenna being connected to the monitoring package.

4. A patch for mounting a monitoring device to the inside of a pneumatic tire;

the patch comprising;

a flexible rubber body having a first side, a second side, and a platform extending from the first side;

the platform including an overhang having a lower surface spaced from the first surface of the body;

the overhang including a plurality of spaced overhang portions disposed about the platform;

a monitoring package for an electronic monitoring device;

an encapsulation material substantially surrounding the monitoring package and the overhang to connect the monitoring package to the patch;

the encapsulation material having been directly applied and then cured to the platform so as to directly and securely bond with the rubber of the platform to connect the encapsulation material and the monitoring package to the material of the platform;

an encapsulation mold defining an encapsulation chamber;

the monitoring package, the encapsulation material, and the overhang being disposed within the encapsulation chamber;

the platform extending through a portion of the mold; and

a portion of the encapsulation mold disposed between the lower surface of the overhang and the first surface of the body.

5. The patch of claim 4, wherein the platform defines a recessed collar;

the encapsulation mold engaging the recessed collar.

6. The patch of claim 4, wherein the platform defines a hollow portion;

the encapsulation material disposed in the hollow portion of the platform.

7. The patch of claim 4, further comprising an antenna substantially surrounded by the encapsulation material;

the antenna being connected to the monitoring package.

8. The patch of claim 4, further comprising an antenna carried by the patch;

the antenna being electrically connected to the monitoring package.