Riser sleeve
Description
FIG. 1 is an isometric view of the riser sleeve;
FIG. 2 is an end view of the riser sleeve;
FIG. 3 is a side top view of the riser sleeve;
FIG. 4 is a rear view of the riser sleeve;
FIG. 5 is a front view of the riser sleeve;
FIG. 6 is a longitudinal cross section taken on the line 6--6 of FIG. 4;
FIG. 7 is a transverse cross-section taken on the line 7--7 of FIG. 3; and,
FIG. 8 is a transverse cross-section taken on the line 8--8 of FIG. 3.
Referenced Cited
Patent History
Patent number: D397702
Type: Grant
Filed: Jun 13, 1997
Date of Patent: Sep 1, 1998
Inventors: Ronald C. Aufderheide (Dublin, OH), David M. Gilson (Columbus, OH), John L. Perrins (Guelph, Ontario)
Primary Examiner: Antoine Duval Davis
Attorney: David L. Hedden
Application Number: 0/72,282
Type: Grant
Filed: Jun 13, 1997
Date of Patent: Sep 1, 1998
Inventors: Ronald C. Aufderheide (Dublin, OH), David M. Gilson (Columbus, OH), John L. Perrins (Guelph, Ontario)
Primary Examiner: Antoine Duval Davis
Attorney: David L. Hedden
Application Number: 0/72,282
Classifications