Refining plate
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Description
FIG. 1 is a perspective view of a refining plate showing our new design;
FIG. 2 is a right side elevational view;
FIG. 3 is a left side elevational view;
FIG. 4 is a radially outer end elevational view;
FIG. 5 is a radially inner end elevational view;
FIG. 6 is a top plan view; and,
FIG. 7 is a bottom plan view.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
D232460 | August 1974 | Sandstrom |
D232462 | August 1974 | Sandstrom |
D232463 | August 1974 | Sandstrom |
D232464 | August 1974 | Sandstrom |
D232468 | August 1974 | Sandstrom |
D232470 | August 1974 | Sandstrom |
D232471 | August 1974 | Sandstrom |
827059 | July 1906 | Davis |
874764 | December 1907 | Halstead |
4274602 | June 23, 1981 | Johansson |
4635864 | January 13, 1987 | Peterson et al. |
4953796 | September 4, 1990 | Virving |
8806490 | September 1988 | WOX |
Patent History
Patent number: D342745
Type: Grant
Filed: Jul 27, 1992
Date of Patent: Dec 28, 1993
Assignee: Sunds Defibrator Industries Aktiebolag
Inventors: Christer Nastren (Upplands Vasby), Lennart Rohden (Enskede)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Lerner, David, Littenberg, Krumholz & Mentlik
Application Number: 7/920,045
Type: Grant
Filed: Jul 27, 1992
Date of Patent: Dec 28, 1993
Assignee: Sunds Defibrator Industries Aktiebolag
Inventors: Christer Nastren (Upplands Vasby), Lennart Rohden (Enskede)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Lerner, David, Littenberg, Krumholz & Mentlik
Application Number: 7/920,045
Classifications
Current U.S. Class:
Element Or Attachment (D15/126)