# US 8,464,615 B2 · Safety pipe wrench > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,464,615 B2 - Document ID: US8464615B2 - Status: Granted - Kind: B2 - Application number: 12/748,509 - Filed: 2010-03-29 - Published: 2011-09-29 - Granted: 2013-06-18 - Earliest claimed: 2010-03-29 - Assignees: National Oilwell Varco, L.P. - Applicants: James Robert Streater; Jeffery Ronald Clausen - Inventors: James Robert Streater; Jeffery Ronald Clausen - Web page: https://patentgrep.com/patent/US8464615B2 ## CPC - B25B 13/16: by screw or nut - B25B 13/5033: {with fixed jaws} - B25B 13/58: Jaw attachments - B25G 1/105: {for screwdrivers, wrenches or spanners (B25G1/102, B25G1/125 take precedence)} - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING - B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B) ## 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. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The safety pipe wrench of claim 1, further comprising a retention member coupled to the first and second arms for retaining the nut in the slot. ### Claim 3 (depends on 2) The safety pipe wrench of claim 2, wherein the retention member comprises a first surface adjacent to the first arm and the second arm on a first side of the handle and a second surface adjacent to the first arm and the second arm on a second side of the handle. ### Claim 4 (depends on 3) The safety pipe wrench of claim 3, wherein a first window is formed in the first surface and a second window is formed in the second surface. ### Claim 5 (depends on 4) The safety pipe wrench of claim 4, wherein each of the first and second windows encompasses and constrains the nut. ### Claim 6 (depends on 3) The safety pipe wrench of claim 3, wherein the first surface is attached to the first and second arms at a total of at least three points, the three points being non-collinear. ### Claim 7 (depends on 6) The safety pipe wrench of claim 6, wherein the second surface is attached to the first and second arms at a total of at least three points, the three points being non-collinear. ### Claim 8 (depends on 3) The safety pipe wrench of claim 3, wherein the first surface is attached to the first arm at a single point and the second surface is attached to the second arm at a single point. ### Claim 9 (depends on 3) The safety pipe wrench of claim 3, wherein the first surface is attached to the first arm at a single point and is attached to the second arm at a two points. ### Claim 10 (depends on 9) The safety pipe wrench of claim 9, wherein the second surface is attached to the first arm at a single point and is attached to the second arm at a two points, further comprising an elongated slot formed in at least one of the first and second arms, the slot providing a pick-up point for the Y-shaped handle. ### Claim 11 (depends on 2) The safety pipe wrench of claim 2, wherein the handle, jaw, gripping inserts, nut, and retention member are each made of a ductile and malleable material. ### Claim 12 (depends on 11) The safety pipe wrench of claim 11, wherein the handle is made of a high-strength aluminum alloy and the jaw, gripping inserts, nut, and retention member are made of a high-strength alloy steel. ### Claim 13 (depends on 1) The safety pipe wrench of claim 1, further comprising a plurality of elongated slots formed in the stem along a longitudinal axis of the handle. ### Claim 14 (depends on 1) The safety pipe wrench of claim 1, further comprising a first load distribution key being an elongated bar disposed between a backside of the first gripping insert and an end face of the jaw head. ### Claim 15 (depends on 14) The safety pipe wrench of claim 14, wherein the first load distribution key is integrally formed with the backside of the first gripping insert and is adapted for embedding on the end face of the jaw head. ### Claim 16 (depends on 1) The safety pipe wrench of claim 1, further comprising a second load distribution key being an elongated bar disposed between a backside of the second gripping insert and an end face of the first arm. ### Claim 17 (depends on 16) The safety pipe wrench of claim 16, wherein the second load distribution key is integrally formed with the backside of the second gripping insert and is adapted for embedding on the end face of the first arm. ### Claim 18 (depends on 1) The safety pipe wrench of claim 1, wherein the first gripping insert and the second gripping insert have teeth. ### Claim 19 (depends on 1) The safety pipe wrench of claim 1, further comprising a shackle coupled to the first end of the handle for attachment of the handle to an overhead device. ### Claim 20 (depends on 1) The safety pipe wrench of claim 1, wherein the second gripping insert is in opposing relation to the first gripping insert to allow the first and second gripping inserts to cooperatively grip an object. ### Claim 21 (depends on 1) The safety pipe wrench of claim 1, further comprising a pair of side plates positionable about the slot and enclosing the shank therein. ### Claim 22 (depends on 21) The safety pipe wrench of claim 21, wherein the pair of side plates rotatably support the nut such that the nut is rotatable about its axis to act as a hinge for the jaw. ### Claim 23 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.