Lift and portable lift
OwnerAdam Krotov, Sandra L. Krotovinventors
Life of this patent
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Abstract
The instant invention uses a ladder which attaches to a wheel-base type stabilizer which aids in rolling the object onto and off a roof or other elevated area. The ladder attaches to the wheel base stabilizer with two "U" shaped channels which receive two of the ladder rungs and the rungs are locked in place with two slip pins on the underside. At the top of the ladder is a leg which also has two "U" shaped channels which slip over the rungs of the ladder and are locked in place with two slip pins. A boom, with a mating square tube welded to it, receives the leg which is attached to the top of the ladder. A leg and wheel assembly are assembled into a second mating square tube welded to the other end of the boom and held in place with a slip pin.
Claims3
A lift and portable lift apparatus for lifting a heavy load from the ground to the roof of a building comprising in combination:
- a lifting boom having a first end and a second end and a winch and pulley mounted thereon between said first and second ends,
- an end support leg and wheel assembly removably attached to said lifting boom at said first end,
- a ladder top mounting assembly having a top end removably attached to said lifting boom at said second end, and having a plurality of channels at a bottom end,
- a vertically positioned, heavy duty ladder having multiple rungs, said ladder top mounting assembly plurality of channels removably engaged with ladder rungs at a top end of said ladder, and
- a ladder wheel base stabilizer having a pair of vertical rods affixed to a top surface and a pair of wheel mounts affixed to a bottom surface at a first end and a second end, said vertical rods having a pair of parallel, horizontally spaced channels removably engaged with ladder rungs at a bottom end of said ladder and said wheel mounts each having a wheel rotatably mounted therein and a wheel brake assembly mounted thereon.
Dependencies are inferred from the claim text.