Matthew P Kokolis

US Patent:

20110127477, Jun 2, 2011

Filed:

May 30, 2010

Appl. No.:

12/790836

Inventors:

MATTHEW PAUL KOKOLIS - OAKDALE PA, US

International Classification:

B66D 1/26
B66D 1/36
B66D 1/28

US Classification:

254285, 254338, 254286

Abstract:

A hoist system includes a drive system and a shaft in rotatable connection with the drive system. The hoist system also includes a flexible first hoist member operatively connected to the shaft at a first longitudinal position thereon so that it can be wound around the shaft or unwound from around the shaft upon rotation of the shaft. The first hoist member extends from the shaft in a first direction. The hoist system also includes at least a second flexible hoist member operatively connected to the shaft at the first longitudinal position so that it can be wound around the shaft or unwound from around the shaft upon rotation of the shaft. The second hoist member extends from the shaft in a second direction, different from the first direction, so that the first hoist member and the second hoist member are wound around the shaft upon rotation of the shaft in a first or forward direction and are unwound from around the shaft upon rotation of the shaft in a second or reverse direction. The first hoist member and the second hoist member are wound on top of each other when the shaft is rotated in the forward direction. The hoist system also includes a first guide member spaced from the drive shaft on a first side of the drive shaft. The first hoist member passes around at least a portion of the first guide member and extends downward to be operatively connectible to an object to be hoisted. The hoist system further includes a second guide member spaced from the drive shaft on a second side of the drive shaft. The second side is different from the first side. The second hoist member passes around at least a portion of the second guide member and extends downward to be operatively connectible to an object to be hoisted.