Method of making three-fold bellows and an arrangement for...

Details Method of making three-fold bellows and an arrangement for... Method of making three-fold bellows and an arrangement for...

2006-01-17

2006-01-17

McDowell, Suzanne E. (Department: 1732)

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Corrugating

C264S508000, C425S336000, C425S396000, C425S183000, C425S190000, C425S193000

Reexamination Certificate

active

06986862

ABSTRACT:
A vulcanization mold (2) includes several segments (8a,8b;10a,10b;12a,12b;14a,14b) which define two end profiles (8, 10) and two inner profile shells (12, 14) having concave surfaces. With synchronous movement sequences, which take place via linear controls from both ends, the segments (8a,8b;10a,10b;12a,12b;14a,14b) are moved together under simultaneous shaping pressure. The outer profile shells (8, 10) pass through twice the distance as the inner profile shells (12, 14). The forming of the work blank (20) is completed via the shaping pressure when the mold (2) has reached the closed position. Preferably the upper profile half shells (8a,10a,12a,14a) and the lower profile segments (8b,10b,12b,14b) are operatively connected to each other via toothed racks (40a,46a,48a,54a;40b,46b,48b,54b) and gear wheels (42a,44a,50a, 52a; 42b, 44b, 50b, 52b) including additional sets of teeth (42a′, 50a′; 42b′, 50b′).

REFERENCES:
patent: 2221470 (1940-11-01), Brown
patent: 2814072 (1957-11-01), Soderquist
patent: 4120635 (1978-10-01), Langecker
patent: 4749345 (1988-06-01), Warmuth et al.
patent: 5560941 (1996-10-01), Hegler et al.
patent: 5578333 (1996-11-01), Schad et al.
patent: 6089852 (2000-07-01), Lee et al.
patent: 6644951 (2003-11-01), Lupke et al.
patent: 695 17 467 (1995-11-01), None

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