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Class Information
Number: 264/DIG.70
Name: Plastic and nonmetallic article shaping or treating: processes > Processes for forming screens or perforating articles
Description:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6722508 |
Removable cartridge assembly for filtering bi-directional axial flow and radial flow and method of making same |
Apr. 20, 2004 |
| 5879782 |
Absorbent articles comprising apertured films having durable wettability |
Mar. 9, 1999 |
| 5792412 |
Apertured films having durable wettability and processes for marking them |
Aug. 11, 1998 |
| 5674211 |
Method for manufacturing a material suitable for use as a top sheet of an absorbent disposable article, and one such material |
Oct. 7, 1997 |
| 4986900 |
Sectional screen cylinder |
Jan. 22, 1991 |
| 4911872 |
Process of making a perforated film |
Mar. 27, 1990 |
| 4882055 |
Unitary injection molded filter |
Nov. 21, 1989 |
| 4842794 |
Method of making apertured films and net like fabrics |
Jun. 27, 1989 |
| 4832886 |
Abrasion process for the manufacture of microporous film |
May. 23, 1989 |
| 4808358 |
Process to obtain molecular orientations in perforated plates made of extruded plastic material |
Feb. 28, 1989 |
| 4801379 |
Microfilter foil and method of producing same |
Jan. 31, 1989 |
| 4797246 |
Continuous manufacture of a perforated plastic film |
Jan. 10, 1989 |
| 4695422 |
Production of formed material by solid-state formation with a high-pressure liquid stream |
Sep. 22, 1987 |
| 4483053 |
Method of making an ink roller |
Nov. 20, 1984 |
| 4317792 |
Process for producing perforated film |
Mar. 2, 1982 |
| 4303609 |
Process for extruding a thermoplastic sheath in the form of a tubular film provided with perforations and device for carrying out the process |
Dec. 1, 1981 |
| 4280978 |
Process of embossing and perforating thermoplastic film |
Jul. 28, 1981 |
| 4259283 |
Manufacture of a sieve having substantially plane sieve sheets |
Mar. 31, 1981 |
| 4226828 |
Process for producing a reticulated web net |
Oct. 7, 1980 |
| 4100248 |
Manufacture of grading and dewatering screens |
Jul. 11, 1978 |
| 3972974 |
Manufacture of abrasion-resistant screening apparatus |
Aug. 3, 1976 |
| 3953566 |
Process for producing porous products |
Apr. 27, 1976 |
| 3935632 |
Method of preparing an insulated negative buoyancy flow line |
Feb. 3, 1976 |
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