Open seam friction rock stabilizer
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Description
FIG. 1 is a front elevational view of an open seam friction rock stabilizer showing my design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is back elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof; and,
FIG. 7 is a top front perspective view thereof.
The views are fragmentarily shown and the broken line showing of the bottom portion is for illustrative purposes only and forms no part of the claimed design.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
RE30256 | April 8, 1980 | Scott |
3922867 | December 1975 | Scott |
4012913 | March 22, 1977 | Scott |
4126004 | November 21, 1978 | Lindeboom |
4310266 | January 12, 1982 | Malsbury et al. |
4313695 | February 2, 1982 | McCartney |
4316677 | February 23, 1982 | Ciavatta |
4322183 | March 30, 1982 | Ciavatta |
4400113 | August 23, 1983 | Chaiko et al. |
4490074 | December 25, 1984 | Chaiko |
4490074 | December 25, 1984 | Chaiko |
5192146 | March 9, 1993 | Landsberg |
514153 | October 1979 | AUX |
Patent History
Patent number: D362448
Type: Grant
Filed: Apr 21, 1994
Date of Patent: Sep 19, 1995
Assignee: Ingersoll-Rand Company (Woodcliff Lake, NJ)
Inventor: Thomas J. Landsberg (Princeton, NJ)
Primary Examiner: Theodore M. Shooman
Assistant Examiner: Mitchell I. Siegel
Attorney: John J. Selko
Application Number: 0/21,623
Type: Grant
Filed: Apr 21, 1994
Date of Patent: Sep 19, 1995
Assignee: Ingersoll-Rand Company (Woodcliff Lake, NJ)
Inventor: Thomas J. Landsberg (Princeton, NJ)
Primary Examiner: Theodore M. Shooman
Assistant Examiner: Mitchell I. Siegel
Attorney: John J. Selko
Application Number: 0/21,623
Classifications
Current U.S. Class:
Drilling, Mining, Or Soil Treatment (includes Element) (D15/21)