Grinding pin
Description
FIG. 1 illustrates a top front perspective view of a grinding pin;
FIG. 2 illustrates a top plan view of the pin of FIG. 1;
FIG. 3 illustrates a bottom plan view of the pin of FIG. 1;
FIG. 4 illustrates a front elevational view of the pin of FIG. 1 the rear elevational view being identical thereto; and,
FIG. 5 illustrates a side view of the pin of FIG. 1 the opposite side elevational view being identical thereto.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
D350887 | September 27, 1994 | Sjolander |
382340 | May 1888 | Vinton |
1088154 | February 1914 | Keller |
1474025 | November 1923 | Emerson |
1488230 | March 1924 | Cundiff |
4611438 | September 16, 1986 | Siden |
4811843 | March 14, 1989 | Stribiak |
5125777 | June 30, 1992 | Osawa |
74091 | March 1994 | CAX |
- Sandvik Coromat rock drilling tools, Product Catalogue, p. 140, 1989.
Patent History
Patent number: D383659
Type: Grant
Filed: Jun 9, 1995
Date of Patent: Sep 16, 1997
Inventor: Murray Norman (North Bay, Ontario)
Primary Examiner: James Gandy
Assistant Examiner: Robert M. Spear
Law Firm: Evenson, McKeown, Edwards & Lenahan P.L.L.C.
Application Number: 0/40,097
Type: Grant
Filed: Jun 9, 1995
Date of Patent: Sep 16, 1997
Inventor: Murray Norman (North Bay, Ontario)
Primary Examiner: James Gandy
Assistant Examiner: Robert M. Spear
Law Firm: Evenson, McKeown, Edwards & Lenahan P.L.L.C.
Application Number: 0/40,097
Classifications
Current U.S. Class:
D 8/70
International Classification: 0803;
International Classification: 0803;