Drum
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FIG. 1 is a front elevational view of a drum showing our new design;
FIG. 2 is a side elevational view;
FIG 3 is a top, front perspective view of the closing ring;
FIG. 4 is a top perspective view of the cover it being understood that the ribs partially shown on the top are continuous around the cover as indicated by the radial lines and as shown in FIG. 8;
FIG. 5 is a top, front perspective view of the drum body;
FIG. 6 is an enlarged fragmentary sectional view taken on the line 6--6 of FIG. 3;
FIG. 7 is an enlarged fragmentary sectional view taken on the line of 7--7 of FIG. 4;
FIG. 8 is an enlarged fragmentary sectional view taken on the line 8--8 of FIG. 5;
FIG. 9 is an enlarged fragmentary view taken on the line 9--9 of FIG. 11;
FIG. 10 is an enlarged top plan view of the drum with the closing ring and cover in place; and
FIG. 11 is an enlarged bottom plan view of the drum.
D210354 | March 1968 | Cornelius |
D229892 | January 1974 | Dubois et al. |
D280706 | September 24, 1985 | Franek et al. |
3561637 | February 1971 | McConnell |
Type: Grant
Filed: Dec 10, 1984
Date of Patent: Nov 1, 1988
Assignee: Wavin B.V. (Zwolle)
Inventors: Bernardus A. Lesscher (Harbrinkhoek), Edward H. Hamilton (Wilmington, DE), Ralph M. Onstenk (Papendrecht)
Primary Examiner: Robert C. Spangler
Attorney: Edmund M. Jaskiewicz
Application Number: 6/679,686