REAMER TOOL
First Claim
Patent Images
1. A device for enlarging a hole comprising:
- a. a cutter assembly having a rotational axis;
b. a plurality of blades formed in the cutter assembly positioned about the rotational axis; and
c. cutting faces on less than all of the blades in said plurality of blades, said cutting faces configured to remove material from the inner surface of said hole.
1 Assignment
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Accused Products
Abstract
An improved reamer tool is described that has lower torque requirements, despite having more blades. Because of the lower torque requirements, the reamer can be used with a handheld drill. The reamer uses fewer cutting edges and has blades that do not extend into the material of the pipe.
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Citations
21 Claims
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1. A device for enlarging a hole comprising:
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a. a cutter assembly having a rotational axis; b. a plurality of blades formed in the cutter assembly positioned about the rotational axis; and c. cutting faces on less than all of the blades in said plurality of blades, said cutting faces configured to remove material from the inner surface of said hole. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A device for enlarging a hole comprising:
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a. a cutter assembly having a rotational axis; b. a plurality of blades formed in the cutter assembly positioned about the rotational axis; and c. an edge on each blade of the plurality of blades facing the sidewall of the hole, wherein said edge has a primary relief angle of between zero and three degrees. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification