Device for providing a hinge to extruded plastic

Details Device for providing a hinge to extruded plastic Device for providing a hinge to extruded plastic

1997-08-25

1999-06-15

Mackey, James P.

Plastic article or earthenware shaping or treating: apparatus

Diverse distinct type shaping means

Shaping orifice and either a downstream preform reshaping...

2642101, 264284, 264294, 425335, 425363, 425385, B29C 5904

Patent

active

059120266

ABSTRACT:
Disclosed is a device for forming a hinge in a sheet of extruded plastic. Plastic material is extruded and passed between a pair of rolls to determine the thickness of the plastic sheet. A groove forming member of a scoring assembly then creates a groove in the sheet of plastic when the plastic is still warm. The groove forming process creates a plastic ridge on both sides of the groove. To flatten these ridges, the sheet then passes through a second set of rolls. The sheet of plastic, still warm, is then cooled by a conventional method. The scoring assembly is movable along the width of the sheet of plastic and is adjustable for the depth of groove. The scoring assembly can also be removable. Once a groove is created, the groove acts as a hinge and the sheet can be bent or folded along the grooved edge.

REFERENCES:
patent: 683863 (1901-10-01), Semmer
patent: 3320225 (1967-05-01), Bradbury
patent: 3704975 (1972-12-01), Bunting, Jr. et al.
patent: 3917772 (1975-11-01), Hollenbeck
patent: 4079114 (1978-03-01), Bonner
patent: 4080878 (1978-03-01), Gallagher et al.
patent: 4528148 (1985-07-01), Potti
patent: 4921563 (1990-05-01), Schwertner et al.
patent: 4938677 (1990-07-01), Robbins, III
patent: 5169651 (1992-12-01), Heiber et al.
patent: 5552101 (1996-09-01), Fujii et al.

Affiliated with

Also associated with

Rating

Device for providing a hinge to extruded plastic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for providing a hinge to extruded plastic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for providing a hinge to extruded plastic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-401181