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Class Information
Number: 76/117
Name: Metal tools and implements, making > Blank or process > Involving use of tap or die
Description: Invention including utilization of a threaded member to cut or impress a helical shape on the outer surface of a rod-like blank, or on the inner surface of a pipe-like blank.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7147939 |
Coated carbide tap |
Dec. 12, 2006 |
| 6035744 |
Method for the production of a cutting insert for thread cutting |
Mar. 14, 2000 |
| 5515750 |
Formation of tools for producing threads with varying pitch |
May. 14, 1996 |
| 4794821 |
Method of roll forming a skip threading tap |
Jan. 3, 1989 |
| 4572032 |
Rethreading die and method |
Feb. 25, 1986 |
| 4408418 |
Method of forming through-feed cylindrical thread rolling dies |
Oct. 11, 1983 |
| 4316683 |
Semi-circular thread tap |
Feb. 23, 1982 |
| 4266449 |
Method for making a cutting tool |
May. 12, 1981 |
| 4152091 |
Numerical controlled rotary cutting tool extension |
May. 1, 1979 |
| 4147088 |
Drill screw |
Apr. 3, 1979 |
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