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US5121808A Expired / Lapsed US ⏱️ 0.0 years remaining

Adjustable gauge steering axle

Assignee: Carraro SpA
•
Filing: 1990-12-13
•
Granted: 1992-06-16
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Expires: 2010-12-13
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Abstract

Abstract An adjustable gauge steering axle is disclosed which comprises an adjustable length beam and a steering control including a double-acting, dual piston rod hydraulic cylinder. Each piston rod of the hydraulic cylinder is connected to a corresponding steering arm through a respective strut which is adjustable telescopingly in length; a swivel joint intervenes between the rod and the strut.

Inventors

  • 👤 Ivano Visentini
  • 👤 Gianni Massaccesi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 19:13
CPC Classifications
B; B60; B60B; B60B35/00; B60B35/003; B60B35/02; B60B35/10; B60B35/1009; B60B35/1018; B60B35/1072; B60B35/109; B62; B62D; B62D49/00; B62D49/06; B62D49/0678; B62D7/00; B62D7/20; B60G; B60G2206/00; B60G2206/01; B60G2206/10; B60G2206/11; B60G2206/111; B60G2206/1112; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221; Y; Y10; Y10S; Y10S180/00; Y10S180/906; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2151

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 132 words
An adjustable gauge steering axle comprising an adjustable length beam and a steering control associated with said beam and including a double-acting, dual piston rod hydraulic cylinder with either each piston rod connected to a corresponding steering arm through a respective strut, wherein said struts are adjustable in length telescopically and linked to their respective piston rod, through an intervening swivel joint with each strut including a tubular sleeve; a first hollow tubular draw-out telescopically slidable in said sleeve and a second draw-out telescopically slidable in said first draw-out with the adjustment pitch distance on one draw-out being a sub-multiple of the adjustment pitch distance of the other draw-out, each draw-out being provided with notches at predetermined pitch intervals and means cooperating with said notches to lock said strut in adjusted position.
Claim 2
Dependent Claim 132 words
An adjustable gauge steering axle comprising an adjustable length beam and a steering control associated with said beam and including a double-acting, dual piston rod hydraulic cylinder with either each piston rod connected to a corresponding steering arm through a respective strut, wherein said struts are adjustable in length telescopically and linked to their respective piston rod, through an intervening swivel joint with each strut including a tubular sleeve; a first hollow tubular draw-out telescopically slidable in said sleeve and a second draw-out telescopically slidable in said first draw-out with the adjustment pitch distance on one draw-out being a sub-multiple of the adjustment pitch distance of the other draw-out, each draw-out being provided with notches at predetermined pitch intervals and means cooperating with said notches to lock said strut in adjusted position.
Claim 3
Dependent Claim 19 words
An axle according to claim 1, characterized in that said hydraulic cylinder includes a housing affixed to said beam.
Claim 4
Dependent Claim 179 words
An adjustable gauge steering axle comprising an adjustable length beam and a steering control associated with said beam and including a double-acting, dual piston rod hydraulic cylinder with either each piston rod connected to a corresponding steering arm through a respective strut, wherein said struts are adjustable in length telescopically and linked to their respective piston rod, through an intervening swivel joint with each strut including a tubular sleeve; a first hollow tubular draw-out telescopically slidable in said sleeve and a second draw-out telescopically slidable in said first draw-out, each draw-out being provided with notches at predetermined pitch intervals and means cooperating with said notches to lock said strut in adjusted position, and wherein said beam comprises a tubular crosspiece having, at opposed ends thereof, two arms perforated at pitch intervals and fitting telescopically thereinto, said crosspiece being formed with holes adapted to receive a screw for locking the arms to the crosspiece, removably therein, the spacing between the centers of said holes being a sub-multiple of the spacing between the centers of the holes formed in each arm.
Claim 5
Dependent Claim 179 words
An adjustable gauge steering axle comprising an adjustable length beam and a steering control associated with said beam and including a double-acting, dual piston rod hydraulic cylinder with either each piston rod connected to a corresponding steering arm through a respective strut, wherein said struts are adjustable in length telescopically and linked to their respective piston rod, through an intervening swivel joint with each strut including a tubular sleeve; a first hollow tubular draw-out telescopically slidable in said sleeve and a second draw-out telescopically slidable in said first draw-out, each draw-out being provided with notches at predetermined pitch intervals and means cooperating with said notches to lock said strut in adjusted position, and wherein said beam comprises a tubular crosspiece having, at opposed ends thereof, two arms perforated at pitch intervals and fitting telescopically thereinto, said crosspiece being formed with holes adapted to receive a screw for locking the arms to the crosspiece, removably therein, the spacing between the centers of said holes being a sub-multiple of the spacing between the centers of the holes formed in each arm.

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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) 1995-06-16 1995-12-16 1996-06-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-06-16 1999-12-16 2000-06-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-06-16 2003-12-16 2004-06-16 $7700.00 Window Closed / Lapsed

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