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US3838142A Expired / Lapsed US ⏱️ 0.0 years remaining

Procedure for correcting radial force variations in pneumatic tires

Assignee: Motors Liquidation Co
•
Filing: 1973-04-23
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Granted: 1974-09-24
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Expires: 1993-04-23
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Abstract

Abstract A procedure for correcting radial force variations in pneumatic tires of the type having a body portion of polymeric material defining a pair of circular sidewalls interconnected by a tread body, the procedure including the steps of rotating the inflated pneumatic tire while subjecting the latter to a normal operating load, continuously monitoring the magnitude of the reaction force resisting the applied load to determine the magnitude and location of the maximum reaction force, and subjecting selected sections of the sidewalls and/or tread body to ionizing radiation to increase the modules of elasticity of the irradiated sections. The sections to be irradiated are those corresponding to instantaneous reaction force magnitudes not exceeding a predetermined portion of the maximum reaction force magnitude achieved through 360 degree of tire rotation.

Inventors

  • 👤 P Hochstein

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 13:57
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/0601; B29D30/0633; G; G01; G01M; G01M1/00; G01M1/30; G01M17/00; G01M17/007; G01M17/02; G01M17/022; G01M17/024; B29D2030/0634; B29D2030/0635

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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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) 1977-09-23 1978-03-25 1978-09-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-09-23 1982-03-25 1982-09-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-09-23 1986-03-25 1986-09-24 $7700.00 Window Closed / Lapsed

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