John Madden Barth

US Patent:

D377217, May 8, 1990

Filed:

Oct 29, 1987

Appl. No.:

7/114531

Inventors:

John M. Barth - Saline MI

Assignee:

Hoover Universal, Inc. - Ann Arbor MI

US Classification:

D 9455

US Patent:

48831883, Nov 28, 1989

Filed:

Oct 27, 1987

Appl. No.:

7/114092

Inventors:

John M. Barth - Saline MI

Assignee:

Hoover Universal, Inc. - Ann Arbor MI

International Classification:

B65D 2308
B65D 2102

US Classification:

215 121

Abstract:

According to the preferred embodiment of the present invention, a method and apparatus for forming base cups for plastic bottles is disclosed wherein a hollow body is blow molded and then cut in half to form two base cups. The side wall of the body is molded with a pair of outwardly extending projections such that when stacking a plurality of base cups, the projection of one cup engages the top lip of the adjacent lower cup thereby making denesting of the top easier.

US Patent:

49617010, Oct 9, 1990

Filed:

Feb 10, 1989

Appl. No.:

7/308557

Inventors:

John M. Barth - Chelsea MI

Assignee:

Hoover Universal, Inc. - Ann Arbor MI

International Classification:

B29C 4950

US Classification:

425527

Abstract:

According to the preferred embodiment of the present invention, an apparatus for forming base cups for plastic bottles is disclosed wherein a hollow body is blow molded and then cut in half to form two base cups. The side wall of the body is molded with a pair of outwardly extending projections such that when stacking a plurality of base cups, the projection of one cup engages the top lip of the adjacent lower cup thereby making denesting of the top cup easier. After molding the hollow body, the body is transferred to a carrier having clamps for engaging the end walls of the body to move and rotate the bodies past a knife for cutting the body in half to form the two base cups.