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US 2019/0316429 A1Published application
Wrench assembly with proportional grip circuit
AssigneeForum US, Inc.
InventorJoshua Brandon Meuth
Life of this patent
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Abstract
A wrench assembly comprises upper and lower clamp assemblies each having a plurality of grip assemblies, a plurality of torqueing cylinders, and a hydraulic circuit. The hydraulic circuit is in fluid communication with the grip assemblies and the torqueing cylinders and is configured to control a gripping force applied by the grip assemblies relative to a torqueing force applied by the torqueing cylinders. The hydraulic circuit is configured to maintain the gripping force in a proportional relationship with the torqueing force.
Claims11
A wrench assembly, comprising;
- a lower clamp assembly having a plurality of first grip assemblies;
- an upper clamp assembly coupled to the lower clamp assembly, the upper clamp assembly having a plurality of second grip assemblies and a plurality of torqueing cylinders coupled thereto;
- and
- a hydraulic circuit in fluid communication with the torqueing cylinders and each of the first and second grip assemblies, wherein the hydraulic circuit is configured to control a gripping force applied by the first and second grip assemblies relative to a torqueing force applied by the torqueing cylinders such that the gripping force is proportional to the torqueing force.
1 more element
Dependencies are inferred from the claim text.