Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Perforation by differential fluid pressure; or smoothing,...
Patent
1986-01-23
1988-05-03
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Direct application of fluid pressure differential to...
Perforation by differential fluid pressure; or smoothing,...
264555, 425290, 4253261, 425388, B29C 5110, B29C 5120
Patent
active
047418770
ABSTRACT:
Method and apparatus for uniformly macroscopically expanding and, if desired, aperturing a plastic web. This is preferably accomplished by supporting the plastic web on a moving three-dimensional forming structure which is supported in a fluid pressure differential zone by a stationary support member. By providing a relationship between the size and pattern of the apertures in the stationary support member and the size and pattern of the apertures in the three-dimensional forming structure, substantially all of the apertures present in the forming structure are unobstructed by the stationary support member at some point during the forming structure's traverse of the fluid pressure differential zone. Thus the resultant plastic web is uniformly debossed and, if desired, apertured in the pattern of the three-dimensional forming structure.
REFERENCES:
patent: Re23910 (1954-12-01), Smith et al.
patent: 2776451 (1957-01-01), Chavannes
patent: 3054148 (1962-09-01), Zimmerli
patent: 3932248 (1976-01-01), Keaton
patent: 3954368 (1976-05-01), Kawakami
patent: 3957414 (1976-05-01), Bussey, Jr. et al.
patent: 3966383 (1976-06-01), Bussey, Jr. et al.
patent: 4151240 (1979-04-01), Lucas et al.
patent: 4155693 (1979-05-01), Raley
patent: 4157237 (1979-06-01), Raley
patent: 4226828 (1980-10-01), Hall
patent: 4342314 (1982-08-01), Radel et al.
patent: 4351784 (1982-09-01), Thomas et al.
patent: 4364723 (1982-12-01), Louis et al.
patent: 4541794 (1985-09-01), Raley et al.
Bartholomew James
Gorman John V.
Linman E. Kelly
Silbaugh Jan H.
The Procter & Gamble & Company
LandOfFree
Uniformly debossing and aperturing a moving plastic web using st does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Uniformly debossing and aperturing a moving plastic web using st, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Uniformly debossing and aperturing a moving plastic web using st will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1504750