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Axial loading apparatus for strengthening the spine

  • US 5,893,818 A
  • Filed: 08/14/1998
  • Issued: 04/13/1999
  • Est. Priority Date: 08/14/1998
  • Status: Expired due to Term
First Claim
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1. An axial loading apparatus for strengthening bony structure of a spine of a person, the apparatus comprising:

  • a. a frame member having a base portion, a vertical portion affixed to the base portion and extending upwardly from the base portion, and a top inclined portion integrally connected to a top end of the vertical portion and extending outwardly away from the vertical portion;

    b. a first yoke member affixed to said top inclined portion of said frame member and extending downwardly therefrom;

    c. a second yoke member affixed to said top inclined portion of said frame member and spaced apart from said first yoke member and extending downwardly therefrom;

    d. an actuator mechanism including an upper bracket portion and a lower elongated hollow handle portion integrally connected to a bottom part of the bracket portion and extending downwardly therefrom, the bracket portion rotatably installed on said first yoke member;

    e. a locking mechanism including a ratchet wheel permanently fixed to one side of said first yoke member and adjacent to said bracket portion of said actuator mechanism and a reciprocating pin slidably installed within an upper part of said hollow handle portion of said actuator mechanism and biased by a coil spring to engage the pin onto the ratchet wheel to prevent said hollow handle portion from moving in a direction of loading;

    f. a linkage arm connected to a side part of said bracket portion of said actuator mechanism and extending outwardly therefrom;

    g. a free spinning pulley rotatably installed on said second yoke member;

    h. a loading and holding mechanism including a helmet support with a top external holding cavity, a lower internal surface conforming to a person'"'"'s head, and a vertical support extending upwardly from the external holding cavity;

    i. an elongated cable movably installed on said free spinning pulley and having one end attached to said linkage arm and the other end attached to said vertical support of said loading and holding mechanism;

    j. a seat extending upwardly from said base portion of said frame member for receiving a person;

    k. a back support connected to said vertical portion of said frame member for supporting a person'"'"'s back;

    l. a plurality of U-shaped weights being adapted to be vertically stacked on top of each other and positioned on said external holding cavity of said loading and holding mechanism; and

    m. means for disengaging said reciprocating pin from said ratchet wheel which in turn allows said hollow handle portion of said actuator mechanism to move in the direction of loading to apply said helmet support onto a person'"'"'s head to strengthen a person'"'"'s spine;

    n. whereby said axial loading apparatus may apply a compressive force to strengthen a person'"'"'s spine.

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