Piston ring compressor
Description
FIG. 1 is a top perspective view of a piston ring compressor showing my new design;
FIG. 2 is a top plan view; and
FIG. 3 is a cross-sectional view taken along the line 3--3 in FIG. 1. "
The side and end not shown are like the side and end shown respectively, while the undisclosed bottom is conventional in appearance."O'Donnell; Patrick J.
3040 Connor St.
Salt Lake City
UT
84109
]
Referenced Cited
U.S. Patent Documents
| D123097 | October 1940 | Brandon |
| D135425 | April 1943 | McLaren |
| D212644 | November 1968 | Nesteriak |
| D287329 | December 23, 1986 | Hamatani |
| D289005 | March 31, 1987 | Babb |
| D306250 | February 27, 1990 | Kyrklund |
| 1303614 | May 1919 | Swart et al. |
| 1488628 | April 1924 | Watson |
| 1536496 | May 1925 | Hill |
| 1849532 | March 1932 | McDevitt |
| 2553663 | May 1951 | Martin |
| 2697870 | December 1954 | Zucker |
| 3305920 | February 1967 | Massey |
| 3707027 | December 1972 | Davis et al. |
| 3754312 | August 1973 | Komorek |
| 4495689 | January 29, 1985 | McNeal et al. |
| 4843697 | July 4, 1989 | Marshall |
Patent History
Patent number: D316214
Type: Grant
Filed: May 13, 1987
Date of Patent: Apr 16, 1991
Inventor: Patrick J. O'Donnell (Salt Lake City, UT)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Application Number: 7/49,081
Type: Grant
Filed: May 13, 1987
Date of Patent: Apr 16, 1991
Inventor: Patrick J. O'Donnell (Salt Lake City, UT)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Martha Thompson
Application Number: 7/49,081
Classifications
Current U.S. Class:
D 8/14;
D 8/71;
Tool Motion Initiates Work Feed And Vice Versa (83/222)
