Method and apparatus for producing mesh film

Details Method and apparatus for producing mesh film Method and apparatus for producing mesh film

1988-03-22

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Differential temperature conditioning

264565, 264569, 26417719, 425 72R, 4253261, 425 721, B29C 4720, B29C 4790

Patent

active

047327278

ABSTRACT:
A method and apparatus for producing mesh film include an extrusion die for extruding a tube of a heat-plastified, resinous, mesh film material. A first cooling arrangement, centrally located within the extruded tube, cools the internal surface of the tube. The first cooling arrangement has an outer diameter substantially equal to the inner diameter of the extruded tube. A plurality of cooling nozzles are disposed radially outward from the first cooling arrangement for directing a plurality of streams of a cooling gas toward the exterior surface of the extruded tube. An annular gas bearing is spaced axially from the first cooling arrangement such that the extruded tube passes therethrough after leaving the first cooling arrangement, thereby permitting the diameter of the extruded tube to be increased subsequently by means of a trapped air bubble therewithin.

REFERENCES:
patent: 2987767 (1961-06-01), Berry et al.
patent: 3140330 (1964-07-01), Gutierrez
patent: 3399262 (1968-08-01), Quackenbush et al.
patent: 3488809 (1970-01-01), James
patent: 3762853 (1973-10-01), Upmeier
patent: 3810725 (1974-05-01), Trub et al.
patent: 3950466 (1976-04-01), Hasler
patent: 3976733 (1976-08-01), Havens
patent: 4115048 (1978-09-01), Alderfer et al.
patent: 4176155 (1979-11-01), Heisterkamp et al.
patent: 4265853 (1981-05-01), Havens
patent: 4315963 (1982-02-01), Havens
patent: 4443400 (1984-04-01), Herrington
patent: 4472343 (1984-09-01), Kawamura et al.

Affiliated with

Also associated with

Rating

Method and apparatus for producing mesh film does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-441015