Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David B. Parzynski0
Thomas M. Congdon0
Date of Patent
March 17, 2020
0Patent Application Number
158641710
Date Filed
January 8, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A system for use in securing bits against rotation in a motor grader may include a bit, with the bit having a shank. The shank may include a locking portion. The system may include an adapter board including a hole configured to receive the shank of the bit. The system may also include an anti-rotation plate configured to engage the locking portion of the shank of the bit such that the anti-rotation plate constrains the bit against rotation with respect to the adapter board.
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