Molding apparatus to form a three dimensional product on a web m

Details Molding apparatus to form a three dimensional product on a web m Molding apparatus to form a three dimensional product on a web m

1972-12-21

1976-03-23

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Endless surface means to shape fluent material

425122, 425129R, B29F 100, B29C 302

Patent

active

039457818

ABSTRACT:
Continuous production of a molded three-dimensional product employs an indexing rotatable drum having along its periphery a plurality of mold cavities into which molten thermoplastic material is introduced, and a web of material permeable to the molten thermoplastic material and which is guided along the drum periphery. In one embodiment the thermoplastic material enters the cavities through the web to which the thermoplastic is subsequently bonded. The thermoplastic material in the cavities is then shaped and cooled before it is removed from the cavities by dissociating the web from the drum periphery. In a second embodiment the molten thermoplastic material is introduced into the cavities before the web is associated onto the drum periphery. After cooling the thermoplastic to bond it to the web, the web is dissociated from the drum and removes the molded thermoplastic from the cavities.

REFERENCES:
patent: 2282308 (1942-05-01), Dahlin
patent: 2534678 (1950-12-01), Obermann et al.
patent: 3196490 (1965-07-01), Erb
patent: 3314112 (1967-04-01), Hardcastle
patent: 3507010 (1970-04-01), Doleman et al.
patent: 3594863 (1971-07-01), Erb
patent: 3594865 (1971-07-01), Erb
patent: 3658971 (1972-04-01), Schickedanz

Affiliated with

Also associated with

Rating

Molding apparatus to form a three dimensional product on a web m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Molding apparatus to form a three dimensional product on a web m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molding apparatus to form a three dimensional product on a web m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1641272