Thermoforming trim press having adjustable bushing assembly,...

Details Thermoforming trim press having adjustable bushing assembly,... Thermoforming trim press having adjustable bushing assembly,...

2006-11-07

2006-11-07

Banks, Derris H. (Department: 3725)

Cutting

Processes

C083S615000, C083S821000, C083S824000, C083S684000, C029S465000, C100S269170, C100S269180, C100S269210

Reexamination Certificate

active

07131360

ABSTRACT:
A thermoforming trim press is provided with a frame, a punch plate, a die plate, and a bushing. The frame has a guide post including a tapered outer surface with increasing cross-sectional dimension toward a closing position. The punch plate has a male cutting die. The die plate has a female cutting die configured to scissor in intermeshing relation with the male cutting die. The bushing has a tapered inner surface complementary and reverse to the tapered outer surface of the guide post. The bushing is adjustable in cross-sectional dimension and is configured to guide one of the punch plate and the die plate for axial reciprocation along the guide post. A method is also provided.

REFERENCES:
patent: 3763732 (1973-10-01), Stursberg
patent: 6067886 (2000-05-01), Irwin
patent: 6116133 (2000-09-01), Nishida

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