Implements or apparatus for applying pushing or pulling force – Single throw lever – Special engaging feature
Patent
1988-02-16
1989-08-01
Hartman, Judy
Implements or apparatus for applying pushing or pulling force
Single throw lever
Special engaging feature
B66F 1100
Patent
active
048528552
ABSTRACT:
Large, flat objects such as manhole covers, storm drain grates and the like, are lifted and maneuvered. A tool includes a gripper assembly which receives the object at or near an edge and establishes control by an arrangement of at least one concentrated contact area or pressure point on one surface of the object and a pair of such concentrated contact areas or pressure points on the other surface. A long lever handle allows pivoting to raise the object; rollers on the tool accommodate maneuvering afterwards. Avoidance of runaway rolling and maintenance of positive movement control is possible by a stub or pin which is attachable is desired to engage the ground, street or the like, after the object is lifted.
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Hancock Earl C.
Hartman Judy
Sirr Francis A.
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