초록 ▼

A slip-type gripping assembly comprises an outer body defining a longitudinal through opening for receipt of the object. A number of slip bodies are circumferentially spaced about the through opening and are radially movable toward and away from the locus of the object. Each slip body is pivotable a

A slip-type gripping assembly comprises an outer body defining a longitudinal through opening for receipt of the object. A number of slip bodies are circumferentially spaced about the through opening and are radially movable toward and away from the locus of the object. Each slip body is pivotable about a generally longitudinal axis generally circumferentially centered with respect to the slip body as well as about a tangential axis. A respective force transfer formation is cooperative between each slip body and the outer body for transferring radial force therebetween while permitting the pivoting.

대표청구항 ▼

A method of gripping a tubular member with a plurality of slip bodies each disposed generally about an outer body, each slip body having gripping teeth on a radially inner surface thereof, the method comprising: pivotably mounting each of a plurality of slip bodies with respect to the outer body abo

A method of gripping a tubular member with a plurality of slip bodies each disposed generally about an outer body, each slip body having gripping teeth on a radially inner surface thereof, the method comprising: pivotably mounting each of a plurality of slip bodies with respect to the outer body about a respective tangential axis for radial movement of an upper portion of each slip body with respect to a lower portion of each slip body; pivotably mounting each of the plurality of slip bodies with respect to the outer body about a respective longitudinal axis for radial movement of a left side of each slip body with respect to a right side of each slip body; and providing a longitudinal inclined camming surface for longitudinal movement of each slip body with respect to the outer body to radially move each slip body with respect to the outer body for gripping engagement with the tubular member.