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Orr . . . Screw Machine Products, Inc. Patents |
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Assignee: Orr . . . Screw Machine Products, Inc.
Address: Greensburg, PA
No. of patents: 2
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 4368789 |
Drilling apparatus |
January 18, 1983 |
| A drill steel and a drill bit having a tip with a cutting element and a hollow open ended shank forming a polygonal socket which is fitted onto a complementary engagement portion at one end of the drill steel so that rotation of the drill steel rotates the bit. The engagement portion of |
| 4330044 |
Drill bit |
May 18, 1982 |
| A drill bit having a hollow shank, a cutting element and a mounting bridge supported in diametrically opposed cutouts at one end of the shank. The bridge is U-shaped in cross section with a base and spaced parallel legs perpendicular to the base. The cutting element is mounted in the bri |
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