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US3734576A Expired / Lapsed US ⏱️ 0.0 years remaining

Track for vehicles

Assignee: Dresser Industries Inc
•
Filing: 1971-07-06
•
Granted: 1973-05-22
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Expires: 1991-07-06
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Abstract

Abstract A sectional rubber track having cables extending longitudinally and embedded in the rubber with traction teeth on the ground contacting side of the track. Transverse connecting bars secure the ends of the cables. Adjacent connecting bars of adjacent track sections form intercalated knuckles which connect by meshing relationship. The knuckles have aligned holes to receive an anchor bar therethrough. The knuckles pivot upon the anchor bar. The cable ends are fixedly mounted to the connecting bar by swaging, riveting, or the like, the location where the cable changes from flexible to non-flexible being referred to as the transition location. A ferrule enclosing the cable is mounted at each transition location. The ferrule has a larger inner diameter than the diameter of the cable and the space between cable and ferrule is filled with an epoxy to allow limited flexing of the cable. Line pivots and associated seats are located around the cables near the ferrules. Each line pivot is secured to a cable with a pair of wedge portions forming two line edges on opposite sides of the cable and radial and transverse to the cable. Complementary seats upon which the edges pivot are mounted on bearing blocks in hollow channel structures extending across the track sections.

Inventors

  • 👤 D Heiple
  • 👤 D Hillman
  • 👤 E Orth
  • 👤 P Stueve

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 01:08
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/253

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 145 words
A track for a track-laying vehicle comprising: a flexible band of rubber-like material having an end and opposite geneRally parallel inner and outer faces; a plurality of flexible tension members extending longitudinally, laterally spaced from each other and embedded in the band; means for connecting the ends of the band to form a closed loop track; and line pivots mounted around the tension members to resist bending of the tension members, said pivots comprising: a. pairs of wedge members forming two line-edges on opposite sides of the tension members, said line-edges extending radially and transversely to the cable; b. hollow channel structure extending across the track sections and embedded in the band of rubber-like material; c. bearing blocks mounted in the channel structures and in the spaces between tension members; and d. complementary seats having grooved surfaces to receive the line-edges for pivoting contact thereon.
Claim 2
Dependent Claim 145 words
A track for a track-laying vehicle comprising: a flexible band of rubber-like material having an end and opposite geneRally parallel inner and outer faces; a plurality of flexible tension members extending longitudinally, laterally spaced from each other and embedded in the band; means for connecting the ends of the band to form a closed loop track; and line pivots mounted around the tension members to resist bending of the tension members, said pivots comprising: a. pairs of wedge members forming two line-edges on opposite sides of the tension members, said line-edges extending radially and transversely to the cable; b. hollow channel structure extending across the track sections and embedded in the band of rubber-like material; c. bearing blocks mounted in the channel structures and in the spaces between tension members; and d. complementary seats having grooved surfaces to receive the line-edges for pivoting contact thereon.

References Cited (Backward Citations)

US2385453A Cited
US2402042A Cited
US2728612A Cited
US2845308A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-05-21 1976-11-20 1977-05-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-05-21 1980-11-20 1981-05-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-05-21 1984-11-20 1985-05-22 $7700.00 Window Closed / Lapsed

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