Patent ID: 6491490
Filing Date: 2002-12-10
Classification: B60P,B62D

Abstract:
An apparatus for lifting a load, said apparatus comprising a beam and a draw works wherein:said beam is comprised of an elongated member, a first connecting member, having a first distal end and a first proximal end, and a second connecting member, having a second distal end and a second proximal end; said elongated member is comprised of a center link positioned intermediate a first end link and a second end link, wherein said center link has a hollow interior, a first end and a second end, said first end link has a first proximal end and a first distal end, wherein said first proximal end of said first end link is slidably inserted into said hollow interior of said center link at said first end of said center link, and said first end link is removably connected to said center link; and said second end link has a second proximal end and a second distal end, wherein said second proximal end of said second end link is slidably inserted into said hollow interior of said center link at said second end of said center link, and said second end link is removably connected to said center link to thereby form said elongated member having a top side, a bottom side, a right side, a left side, a first end and a second end; said first proximal end of said first connecting member is attached to said first end of said elongated member whereby said first connecting member projects downwardly from and substantially perpendicular to said bottom side of said elongated member and said first distal end of said first connecting member is adapted for rotational attachment to said load at a first pivot connected to said load; said second proximal end of said second connecting member is attached to said second end of said elongated member whereby said second connecting member projects downwardly from and substantially perpendicular to said bottom side of said elongated member and said second distal end of said second connecting member is adapted for rotational attachment to a stationary base at a second pivot connected to said stationary base; said draw works is comprised of a winch, a traveling block and a flexible line, having a free end and a winch end, wherein said flexible line connects said winch and said traveling block; said winch is supported by and slidably positioned on said top side of said elongated member intermediate said first end and said second end of said elongated member; and said traveling block is positioned below said bottom side of said elongated member and is adapted to grip said load at a position intermediate said first pivot and said second pivot.