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US3740293A Expired / Lapsed US ⏱️ 0.0 years remaining

Tire building machine

Assignee: NRM Corp
•
Filing: 1971-05-17
•
Granted: 1973-06-19
•
Expires: 1991-05-17
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Abstract

Abstract A TIRE BUILDING MACHINE HAVING AN EXPANDABLE DRUM WITH SEPARATE CROWN AND SHOULDER DRIVES FOR CONTROLLING THE MOVEMENT OF THE CROWN AND SHOULDER PORTIONS TO SHAPE THE PLIES TO THE FULL TIRE SHAPE AND MAINTAIN UNIFORM SPACING OF THE CORDS. THE OUTBOARD END OF THE DRUM IS SUPPORTED BY AND LATCHED TO A TAILSTOCK TUBE FOR THE TRANSFER OF AXIAL FORCES FROM THE TAILSTOCK TO THE DRUM DURING THE BUILDING OPERATION. AXIAL MOVEMENT OF THE DRUM SHOULDERS IS ADJUSTABLY CONTROLLED BY INTERCONNECTED ADJUSTABLE STOPS MOUNTED ON THE TAILSTOCK AND MAIN HOUSING WITH PISTON CYLINDER ASSEMBLIES RESISTING MOVEMENT OF THE SHOULDERS IN DIFFERENT DIRECTIONS TO CONTROL RADIAL EXPANSION AND CONTRACTIONN OF THE SHOULDERS DURING THE BUILDING OPERATION IN COOPERATION WITH THE SHOULDER DRIVE.

Inventors

  • 👤 T Jones
  • 👤 A Cantarutti

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 16:54
CPC Classifications
B; B29; B29D; B29D30/00; B29D30/06; B29D30/08; B29D30/20; B29D30/24; B29D30/244; B29D30/245; B29D30/36; B29D30/26; B29D2030/2635; B29D30/32; B29D2030/3221; B29D2030/3242

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) 1976-06-18 1976-12-18 1977-06-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-06-18 1980-12-18 1981-06-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-06-18 1984-12-18 1985-06-19 $7700.00 Window Closed / Lapsed

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