Thermoforming apparatus and method

Details Thermoforming apparatus and method Thermoforming apparatus and method

1981-10-19

1983-05-10

Welsh, Maurice J.

Plastic article or earthenware shaping or treating: apparatus

Control means responsive to or actuated by means sensing or...

Cutter control

264 401, 264548, 330 6, 425150, 425156, 4253021, B28B 1700

Patent

active

043827624

ABSTRACT:
Thermoforming equipment includes a solid state sensor adapted to determine when a sheet of thermoplastic material has been clamped between a forming mold and a heating platen. Clamping force is provided by a cutter blade carried by said mold around the periphery thereof. Electronic control circuitry responsive to the sensor maintains the thermoplastic sheet in clamped relation without being severed by the blade. After the thermoplastic sheet has been formed into an article defined by the mold, the mold and platen are permitted to continue to close beyond the point sensed by the sensor, permitting the blade to penetrate the sheet and sever the formed article therefrom.

REFERENCES:
patent: Re26413 (1968-06-01), Keyes
patent: 3113345 (1963-12-01), Butzko
patent: 3166790 (1965-01-01), Keyes
patent: 3199630 (1965-08-01), Engel et al.

Affiliated with

Also associated with

Rating

Thermoforming apparatus and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thermoforming apparatus and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermoforming apparatus and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-524879