Safety pipe wrench
AssigneeNational Oilwell Varco, L.P.
InventorsJames Robert Streater, Jeffery Ronald Clausen
Life of this patent
Estimating the term…
Abstract
A safety pipe wrench includes a Y-shaped handle having a stem extending from a first end of the handle towards a second end of the handle. The stem bifurcates into a first arm and a second arm at a location between the first end and the second end of the handle. The first arm and the second arm extend to the second end of the handle. A slot is defined between the first arm and the second arm. A first gripping insert is mounted on the first arm. A nut is rotatably retained in the slot. A jaw has a shank terminating in a jaw head. The shank is movably engaged with the nut. A second gripping insert is mounted on the jaw head.
Claims23
A safety pipe wrench comprising:
- a V-shaped handle having a stem extending from a first end of the handle towards a second end of the handle, the stem bifurcating into a first arm and a second arm at a location between the first end and the second of the handle, the first arm and the second arm extending to the second end of the handle, a terminal free end of the second arm defining in part said second end of the handle, a slot being defined between the first arm and the second arm;
- a first gripping insert mounted on the first arm, the first gripping insert and the first arm immovable relative to the handle;
- a nut rotatably retained in the slot;
- a jaw consisting of a shank terminating in a single jaw head, the shank being movably engaged with the nut, a second gripping insert mounted on the single jaw head;
- and
- wherein a width of the first arm is greater than a width of the second arm so that the slot defined between the first arm and the second arm is eccentric relative to a longitudinal axis of the handle.
A safety pipe wrench comprising:
- a V-shaped handle having a stem extending from a first end of the handle towards a second end of the handle, the stem bifurcating into a first arm and a second arm at a location between the first end and the second of the handle, the first arm and the second arm extending to the second end of the handle, a terminal free end of the second arm defining in part said second end of the handle, a slot being defined between the first arm and the second arm;
- a first gripping insert mounted on the first arm;
- a nut rotatably retained in the slot;
- a jaw consisting of a shank terminating in a single jaw head, the shank being movably engaged with the nut, a second gripping insert mounted on the single jaw head;
- a pair of side plates positionable about the slot and enclosing a free end of the shank therein;
- and
- wherein a width of the first arm is greater than a width of the second arm so that the slot defined between the first arm and the second arm is eccentric relative to a longitudinal axis of the handle.
Dependencies are inferred from the claim text.