Jaw insert for power tongs
Latest Martin-Decker, Inc. Patents:
Description
FIG. 1 is an enlarged top-front perspective view of a jaw insert for power tongs, showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a top plan view;
FIG. 4 is a rear elevational view;
FIG. 5 is a right side elevational view;
FIG. 6 is a bottom plan view; and
FIG. 7 is a left side elevational view thereof.
Referenced Cited
U.S. Patent Documents
Other references
D29767 | December 1898 | Vaughan |
D187745 | April 1960 | Bird |
D287928 | January 27, 1987 | Watanabe |
2150611 | March 1939 | Speck |
2166449 | July 1939 | Sharpe |
2558440 | June 1951 | Johnson |
2733624 | February 1956 | Dowidat |
3916735 | November 1975 | Evans |
- Aero Space America, 6/1985, inside back cover, Wrench.
Patent History
Patent number: D314896
Type: Grant
Filed: Oct 15, 1987
Date of Patent: Feb 26, 1991
Assignee: Martin-Decker, Inc.
Inventor: Charles W. Haynes (Marshall, TX)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Gary D. Watson
Attorney: William P. Green
Application Number: 7/108,881
Type: Grant
Filed: Oct 15, 1987
Date of Patent: Feb 26, 1991
Assignee: Martin-Decker, Inc.
Inventor: Charles W. Haynes (Marshall, TX)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Gary D. Watson
Attorney: William P. Green
Application Number: 7/108,881
Classifications
Current U.S. Class:
D 8/22;
D 8/61