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US 2021/0198952 A1Published application
Expandable cutting tool
AssigneeSmith International, Inc.
InventorPatrick Virene
Life of this patent
Estimating the term…
Abstract
An expandable tool includes a cutting block set. The cutting block set includes an upper cutting block and a lower cutting block, arranged longitudinally. The upper cutting block includes upper block splines having an upper block angle. The lower cutting block includes lower block splines having a lower block angle. The upper block angle is greater than the lower block angle, which directs the upper cutting block to extend radially further outward than the lower cutting block.
Claims19
An expandable tool, comprising:
- a cutting block set, including:
- a first cutting block, the first cutting block including a first block angle of between 10° and 25°;
- and
- a second cutting block, the first cutting block and the second cutting block being arranged longitudinally, the second cutting block including a second block angle of greater than 17°.
1 more element
An expandable tool, comprising:
- a cutting block set, including:
- a first cutting block;
- and
- a second cutting block, the first cutting block and the second cutting block being arranged longitudinally, the first cutting block being connected to the second cutting block with an interlocking connection.
1 more element
A method for operating an expandable tool, comprising:
- expanding a first cutting block of a cutting block set at a first extension ratio of longitudinal movement to radial extension of the first cutting block;
- and
- expanding a second cutting block of the cutting set at a second extension ratio of longitudinal movement to radial extension of the second cutting block, the second extension ratio being different from the first extension ratio, wherein the first cutting block and the second cutting block are arranged longitudinally.
Dependencies are inferred from the claim text.