DEVICE FOR ROAD VEHICLES FOR THE WIRELESS TRANSMISSION OF AT LEAST ONE MEASURED VALUE OF A ROTATING WHEEL TO AN INDICATING INSTRUMENT

• US 3,662,335 A
• Filed: 10/08/1969
• Issued: 05/09/1972
• Est. Priority Date: 10/08/1969
• Status: Expired due to Term

• Current Assignee: Kurt Fritze
• Original Assignee: Kurt Fritze
• Inventors: Fritze, Kurt
• Primary Examiner(s): Caldwell, John W.
• Assistant Examiner(s): Swann, III, Glen R.
• Application Number:
  US04/864,651
• Time in Patent Office: 944 Days
• Field of Search: 340/58 180/103 73/146.5 116/34R 200/61.25,61.22 307/1R
• US Class Current: 340/448
• CPC Class Codes: B60C 23/0428 using passive wheel mounted resonance circuits
• CPC Class Codes: B60C 23/0452 Antenna structure, control or arrangement vehicle tyre mounted antennas H01Q1/2241
• CPC Class Codes: B60C 23/0493 for attachment on the tyre
• CPC Class Codes: B60C 23/20 Devices for measuring or signalling tyre temperature only

Abstract

A device for road vehicle wheels for a wireless transmission of electrical signals corresponding with at least one measured value, such as pressure, temperature, imbalance, etc. from a coupling element of the respective wheel to a coupling means fixed to the vehicle frame in proximity to said wheel and being connected with an indicating instrument located in the driver'"'"''"'"'s cab or compartment on the vehicle frame, with the coupling element of the wheel extending coaxially to the wheel hub, and the coupling element extending radially outside of the rim base of the wheel about the entire circumference of the wheel and being accommodated in the tire casing near an outer edge of the rim of the wheel.

Claims

1. A device for road vehicle wheels in which the wheels include a rim and a tire casing, with the device being for the wireless transmission of electrical signals corresponding with at least one measured value, such as pressure, from a coupling element of the respective wheel to a coupling means fixed to the vehicle frame in proximity to said wheel and being connected with an indicating instrument located in an operator'"'"''"'"'s compartment on the vehicle frame, said coupling element of said wheel extending coaxially to the wheel hub, the improvement being that said coupling element extends radially outside of the rim base of the wheel about the entire circumference of the wheel, and being accommodated in the tire casing near an outer edge of the rim of the wheel.

2. The device for the wireless transmission of at least one measured value as claimed in claim 1 in which said coupling element is vulcanized to the inside of the tire casing. 3. The device for the wireless transmission of at least one measured value as claimed in claim 1 including an inner tube within the tire casing, said coupling element being accommodated in the inner tube near the outer edge of the rim.

4. The device for the wireless transmission of at least one measured value as claimed in claim 1 and further including an inner tube within the tire casing, and a separate bead said bead band having portions located between the rim and the inner tube and the tire casing and the inner tube, respectively, said coupling element being accommodated in said bead band.

5. The device for the wireless transmission of at least one measured value as claimed in claim 4, in which said coupling element is accommodated in the portion of said bead band located between the tire casing and the inner tube.

6. The device for the wireless transmission of at least one measured value as claimed in claim 4, in which said coupling element is accommodated in the portion of the bead band located between the rim and the inner tube.