Method for enabling the cutting to size of a continuously extrud

Details Method for enabling the cutting to size of a continuously extrud Method for enabling the cutting to size of a continuously extrud

1988-06-03

1989-08-29

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264149, 264167, 264172, 2641772, 425142, B29C 4702, B29C 4792

Patent

active

048615307

ABSTRACT:
A method for enabling the cutting to size of a continuous extruded weather strip including an anchoring profile provided with internal longitudinal retaining ribs and a tubular sealing profile co-extruded with the retaining profile and having variable characteristics. In order to cut the weather strip in predetermined zones related to the variations in the characteristics of the weather strip during extrusion, at least one of the internal longitudinal ribs is at least partially omitted in sections spaced from each other according to the length of the pieces of extrusion to be cut to size, and the omitted sections are detected to provide corresponding signals to enable cutting.

REFERENCES:
patent: 4576773 (1986-03-01), Azzola et al.
patent: 4584150 (1986-04-01), Ballocca
patent: 4753765 (1988-06-01), Pande
patent: 4765936 (1988-08-01), Ballocca

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