Viewing window

Info

Patent number: D322129
Type: Grant
Filed: May 18, 1989
Date of Patent: Dec 3, 1991
Assignee: Tsubakimoto Bulk Systems Corporation (Osaka)
Inventors: Chozo Matsumoto (Mie), Tsuyoshi Yonezawa (Osaka)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris Clark
Law Firm: Dann, Dorfman, Herrell and Skillman
Application Number: 7/354,697

Description

Description

FIG. 1 is a top plan view of a viewing window showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view; the left side being a mirror image thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view of a second embodiment of a viewing window showing our new design;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a right side elevational view, the left side being a mirror image thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a right side elevational view of the viewing window in FIG. 4 with the cover raised; and

FIG. 12 is a right side elevational view of the viewing window in FIG. 9 with the cover raised.