US4570152A
Expired / Lapsed
US
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Magnetic tire monitor system
Assignee: HYPERION Corp 1595 PROMENADE CENTER RICHARDSON TX 75085 A CORP OF TX
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Filing: 1984-04-23
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Granted: 1986-02-11
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Expires: 2004-04-23
Abstract
Abstract A method and apparatus are described for monitoring the condition of a rotating pneumatic tire on a moving vehicle. A plurality of magnetic studs are embedded into the body of a pneumatic tire at the selected points about the periphery thereof. A magnetic field sensor is mounted upon a non-rotating portion of the vehicle adjacent to the tire and is utilized to detect the magnetic field pulsations generated by the rotating plurality of magnetic studs. As the temperature of the tire increases, toward imminent failure, or tread separation, the heat generated will decrease the magnetic field associated with the magnetic studs. When the temperature increases to a selected point and the magnetic field decreases accordingly, a display device is utilized to generate a visual and/or audible indication of imminent tire failure.
Inventors
- 👤 Jack D. Melton
- 👤 Collin J. McKinney
- 👤 James A. Reimund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:32
CPC Classifications
B; B60; B60C; B60C23/00; B60C23/02; B60C23/04; B60C23/0491; B60C23/0493; B60C23/0408; B60C23/0422; B60C23/0425; B60C23/20
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
128 words
Apparatus for monitoring the condition of a pneumatic tire on a moving vehicle comprising: a plurality of magnetic members embedded in the body of a pneumatic tire at selected points about the periphery thereof; at least one magnetic field sensing device mounted upon a non-rotating portion of said vehicle in proximity to the periphery of said tire for generating an output signal representative of the magnetic field generated by said plurality of magnetic members; signal processing means coupled to said at least one magnetic field sensing device for measuring decreases in said output signal indicative of an increase in temperature of said tire; and display means coupled to said signal processing means for generating a visual display signal in response to a selected decrease in said output signal.
Claim 2
Dependent Claim
128 words
Apparatus for monitoring the condition of a pneumatic tire on a moving vehicle comprising: a plurality of magnetic members embedded in the body of a pneumatic tire at selected points about the periphery thereof; at least one magnetic field sensing device mounted upon a non-rotating portion of said vehicle in proximity to the periphery of said tire for generating an output signal representative of the magnetic field generated by said plurality of magnetic members; signal processing means coupled to said at least one magnetic field sensing device for measuring decreases in said output signal indicative of an increase in temperature of said tire; and display means coupled to said signal processing means for generating a visual display signal in response to a selected decrease in said output signal.
Claim 3
Dependent Claim
31 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said plurality of magnetic members comprises a plurality of cylindrical magnetic studs.
Claim 4
Dependent Claim
37 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 2 wherein said plurality of cylindrical magnetic studs comprises a plurality of cylindrical studs constructed of a hard magnetic material.
Claim 5
Dependent Claim
35 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said plurality of said magnetic members are embedded in the shoulder portion of said pneumatic tire.
Claim 6
Dependent Claim
36 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 4 wherein said plurality of magnetic members are embedded at substantially equidistant points about the periphery of said tire.
Claim 7
Dependent Claim
32 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said at least one magnetic field sensing device comprises a Hall effect device.
Claim 8
Dependent Claim
35 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said signal processing means comprises means for comparing said output signal with a predetermined signal level.
Claim 9
Dependent Claim
27 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said display means is mounted within said vehicle.
Claim 10
Dependent Claim
30 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said display means further includes means for generating an audible signal.
Claim 11
Dependent Claim
27 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 8 wherein said display means includes a light emitting diode.
Claim 12
Dependent Claim
27 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 1 wherein said vehicle includes a plurality of pneumatic tires.
Claim 13
Dependent Claim
39 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 11 wherein said apparatus includes a plurality of magnetic members embedded in the body of each of said plurality of pneumatic tires.
Claim 14
Dependent Claim
46 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 12 wherein said apparatus includes a plurality of display means, each of said plurality of display means associated with a single one of said of plurality of pneumatic tires.
Claim 15
Dependent Claim
102 words
Apparatus for monitoring the condition of a pneumatic tire on a moving vehicle comprising: a plurality of magnetic members embedded in the body of a pneumatic tire at selected points about the periphery thereof; at least one magnetic field sensing device mounted upon a non-rotating portion of said vehicle in proximity to the periphery of said tire for generating an output signal representative of the magnetic field generated by said plurality of magnetic members; and means for generating a visual signal in response to a selected decrease in said output signal corresponding to a selected increase in the temperature of said tire.
Claim 16
Dependent Claim
102 words
Apparatus for monitoring the condition of a pneumatic tire on a moving vehicle comprising: a plurality of magnetic members embedded in the body of a pneumatic tire at selected points about the periphery thereof; at least one magnetic field sensing device mounted upon a non-rotating portion of said vehicle in proximity to the periphery of said tire for generating an output signal representative of the magnetic field generated by said plurality of magnetic members; and means for generating a visual signal in response to a selected decrease in said output signal corresponding to a selected increase in the temperature of said tire.
Claim 17
Dependent Claim
31 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 14 wherein said plurality of magnetic members comprises a plurality of cylindrical magnetic studs.
Claim 18
Dependent Claim
37 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 15 wherein said plurality of cylindrical magnetic studs comprises a plurality of cylindrical studs constructed of a hard magnetic material.
Claim 19
Dependent Claim
35 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 14 wherein said plurality of said magnetic members are embedded in the shoulder portion of said pneumatic tire.
Claim 20
Dependent Claim
36 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 17 wherein said plurality of magnetic members are embedded at substantially equidistant points about the periphery of said tire.
Claim 21
Dependent Claim
32 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 14 wherein said at least one magnetic field sensing device comprises a Hall effect device.
Claim 22
Dependent Claim
27 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 14 wherein said vehicle includes a plurality of pneumatic tires.
Claim 23
Dependent Claim
39 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 19 wherein said apparatus includes a plurality of magnetic members embedded in the body of each of said plurality of pneumatic tires.
Claim 24
Dependent Claim
48 words
The apparatus for monitoring the condition of a pneumatic tire on a moving vehicle according to claim 14 wherein said apparatus includes a means associated with each of said plurality of pneumatic tires for generating a visual signal in response to a selected decrease in said output signal.
Claim 25
Independent Claim
76 words
A method for monitoring the condition of a pneumatic tire on a moving vehicle comprising: embedding a plurality of magnetic members in the body of a pneumatic tire at selected points about the periphery thereof; sensing the magnetic field generated by said plurality of magnetic members during rotation of said tire; and generating a visual signal in response to a selected decrease in said magnetic field corresponding to a selected increase of temperature of said tire.
Claim 26
Independent Claim
76 words
A method for monitoring the condition of a pneumatic tire on a moving vehicle comprising: embedding a plurality of magnetic members in the body of a pneumatic tire at selected points about the periphery thereof; sensing the magnetic field generated by said plurality of magnetic members during rotation of said tire; and generating a visual signal in response to a selected decrease in said magnetic field corresponding to a selected increase of temperature of said tire.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |