Cutting by use of rotating axially moving tool – With product handling or receiving means
Reexamination Certificate
2005-04-19
2005-04-19
Howell, Daniel W. (Department: 3722)
Cutting by use of rotating axially moving tool
With product handling or receiving means
C408S204000
Reexamination Certificate
active
06881016
ABSTRACT:
A core retainer includes a base plate releasably attached to a concrete floor from which a concrete core is to be removed. A brake assembly atop the plate includes a plurality of brake pads for contact with the interior of the core drill bit. The retainer is configured to fit within the core drill bit and either rotate with the core drill bit or be stationary relative thereto. Upon drilling, the plate and separated core fall to the floor below. This movement is translated to the brake assembly by the linkage such that the brake pads engage the core drill bit at a sufficient pressure allowing for the separated core to be retained within the core drill bit.
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Chase Law Firm, L.C.
Howell Daniel W.
Williams Jamila O
LandOfFree
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