Patent ID: 7497071

Claim:
A chain puller comprising: an elongate housing made from square tubing and having a first end, a second end, and a C-shaped channel extending between the first end and the second end; a one piece first chain engaging member, the first chain engaging member having an integrally formed lower portion and an integrally formed upper portion, the upper portion having a chain engaging face to be inserted between links of a chain, and the lower portion being fixedly attached toward the first end of the housing; a one piece second chain engaging member, the second chain engaging member having an integrally formed lower portion and an integrally formed upper portion, the upper portion having a chain engaging face to be inserted between links of a chain, where the chain engaging face of the second chain engaging member faces the chain engaging face of the first chain engaging member, and the lower portion being rectangular in cross-section and slideably engaged within the C-shaped channel toward the second end of the housing relative to the first chain engaging member such that the second chain engaging member slides along within the C-shaped channel between the first end and the second end; and a screw actuator having a nut fixedly attached toward the second end of the housing relative to the second chain engaging member and a screw member engaged within the nut, the screw member having a first end and a second end, the first end having an engagement face extending into the C-shaped channel for engaging the lower portion of the second chain engaging member, and the second end having means for rotating the screw member, such that rotation in a first direction causes the engagement face to advance toward the first end of the housing, and rotation in a second direction causes the engagement face to retract toward the second end of the housing.