Vehicle transporter with screw actuators

  • US 7,025,547 B2
  • Filed: 03/29/2004
  • Issued: 04/11/2006
  • Est. Priority Date: 03/29/2004
  • Status: Expired due to Fees
First Claim
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1. A vehicle transporter comprising:

  • (a) a vehicular frame;

    (b) a vehicle support member movable relative to said vehicular frame; and

    (c) a screw actuator comprising;

    (i) an elongate tubular shell connectible to one of said vehicular frame and said vehicle support member, said tubular shell comprising a wall defining an exterior and an interior;

    (ii) an elongate slide tube having a first end connectible to the other of said vehicular frame and said vehicle support member, a second end, and a slide tube wall connecting said first end and said second end and defining a slide tube interior and a slide tube exterior, said slide tube exterior being slidably arranged in said interior of said tubular shell;

    (iii) a guide in sliding engagement with said slide tube interior;

    (iv) a screw having a threaded portion, a first end arranged for rotation in said interior of said tubular shell, and a second end rotatably supported by said guide; and

    (v) a nut constrained to translate with said slide tube and in threaded engagement with said threaded portion of said screw so that rotation of said screw will cause said slide tube to translate longitudinally in said tubular shell altering said length of said screw actuator and moving said vehicle support member relative to said vehicular frame.

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