|Publication number||USD574403 S1|
|Application number||US 29/277,766|
|Publication date||Aug 5, 2008|
|Filing date||Mar 9, 2007|
|Priority date||Mar 9, 2007|
|Publication number||277766, 29277766, US D574403 S1, US D574403S1, US-S1-D574403, USD574403 S1, USD574403S1|
|Inventors||William J. Brady|
|Original Assignee||The William J. Brady Loving Trust|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (1), Classifications (1) |
|External Links: USPTO, USPTO Assignment, Espacenet|
Hard rock percussion drill bit with paraboloid PCD inserts
US D574403 S1
The ornamental design for a hard rock percussion drill bit with paraboloid PCD inserts, as shown and described.
FIG. 1 is a greatly enlarged side elevational view of a hard rock percussion drill bit embodying the invention.
FIG. 2 is a top plan view thereof.
FIG. 3 is a bottom view thereof.
FIG. 4 is a side elevation thereof, as rotated 90° from the FIG. 1 position, and partially fragmented and broken away to illustrate the interiorly threaded bore at the bottom end; and,
FIG. 5 is a perspective view of thereof.
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US8641336||Aug 12, 2011||Feb 4, 2014||Charles A. Van Horssen||Tool holder and cutting tool|