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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12551995-B2, on 17 February 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000002903

Hydraulic torque wrench

Published
Permanent URL
Classification
Tools & Tooling › Clamping Tools
Inventors
DODDS TONY, GILL JOSEPH, O'BRIEN IAN, O'BRIEN TERESA
Assignee
ATLAS COPCO IND TECHNIQUE AB
Original source
US-12551995-B2, the United States Patent and Trademark Office, 17 February 2026
Document SHA-256
91ceba46ae5f63ae45728a604158fd941e26df61bf4ca26eadd3a430b8fbd6f1

Abstract

A hydraulic torque wrench ( 10 ), comprising: an input, for pressurised hydraulic fluid; a drive connector ( 14 ); a drive connector ( 13 ), driven by hydraulic fluid introduced at the input and arranged to drive the drive connector ( 14 ) to rotate; a drive member ( 1 ) for connecting to an item to be rotated by the hydraulic torque wrench ( 10 ), the drive member ( 1 ) comprising: a drive member ( 16 ), which engages the drive connector ( 14 ) so as to be driven by the drive connector ( 14 ) and a second part ( 18 ) arranged to be coupled to the item to be rotated. In which the drive member ( 1 ) comprises a retention mechanism which has two states: a first state, in which it prevents removal of the drive member ( 1 ) from the drive connector ( 14 ); and, a second, state in which it permits removal of the drive member ( 1 ) from the drive connector ( 14 ). In which the retention mechanism remains connected to the drive member ( 1 ) in the first state and in the second state. In which the retention mechanism comprises at least one retractable pin in the drive member ( 1 ), the retractable pin extending from the drive member ( 1 ) into the drive connector ( 14 ) in the first state and retracting into the drive member ( 1 ) in the second state. In which the drive member ( 16 ) of the drive member ( 1 ) has splines ( 15 ), and the drive connector ( 14 ) has splines ( 15 ) complementary to those of the drive member ( 16 ) of the drive member ( 1 ). In which each pin protrudes from the splines ( 15 ) of the drive member ( 1 ). There is no need to remove a separate retention member to change the drive member ( 16 ).

Publication information

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Citation

OpenTechnical Publication OT-2026-000002903, “Hydraulic torque wrench,” published September 15, 2026 at 19:16:03 UTC, https://opentechnical.org/p/OT-2026-000002903.

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Terms

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