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Class Information
Number: 493/450
Name: Manufacturing container or tube from paper; or other manufacturing from a sheet or web > Bending > Folding > By direct application of vacuum or fluid
Description: Method or apparatus including (a) application of reduced pressure to certain portions of a sheet or web workpiece so that atmospheric pressure acting on an opposing portion thereof effects the stress to form a crease line in the workpiece; or, (b) application of increased pressure from a flowable medium to effect the stress to form a crease line in the workpiece.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7591123 |
Method for the production of a gas bag packet for an airbag module |
Sep. 22, 2009 |
| 7399266 |
Method and machine for folding and finishing training pant diapers |
Jul. 15, 2008 |
| 7322925 |
Apparatus and method for making pre-fastened absorbent undergarments |
Jan. 29, 2008 |
| 7314440 |
Former for a strip-producing or strip-processing machine |
Jan. 1, 2008 |
| 7270631 |
Method of tucking side panels with side panel fold location control |
Sep. 18, 2007 |
| 7214174 |
Apparatus for folding a nonbonded nonwoven web |
May. 8, 2007 |
| 7008364 |
Sheet folding apparatus and method |
Mar. 7, 2006 |
| 7008363 |
Apparatus and methods for folding a nonbonded nonwoven web |
Mar. 7, 2006 |
| 6840616 |
Air folder adjuster apparatus and method |
Jan. 11, 2005 |
| 6821370 |
Method for positioning garment side panels |
Nov. 23, 2004 |
| 6773387 |
Vacuum cleaning folding rail |
Aug. 10, 2004 |
| 6726615 |
Method of folding a gas bag for a vehicle occupant restraint system, a folded gas bag for a vehicle occupant restraint system and a device for performing the method |
Apr. 27, 2004 |
| 6723035 |
Method of tucking side panels with side panel fold location control |
Apr. 20, 2004 |
| 6723036 |
Methods and apparatus for folding sheet material |
Apr. 20, 2004 |
| 6685616 |
Method and apparatus for setting up at least one tool on a tool carrier in relation to format |
Feb. 3, 2004 |
| 6673003 |
Vacuum cleaning folding rail |
Jan. 6, 2004 |
| 6638202 |
Bag turning device |
Oct. 28, 2003 |
| 6612974 |
Adjustable folding station for cards |
Sep. 2, 2003 |
| 6588179 |
Method and apparatus for packaging an airbag |
Jul. 8, 2003 |
| 6572520 |
Apparatus for transporting envelope blanks in an envelope making machine |
Jun. 3, 2003 |
| 6514187 |
Folding and manufacture of pants |
Feb. 4, 2003 |
| 6260330 |
Method and apparatus for the folding of an inflatable airbag |
Jul. 17, 2001 |
| 5954006 |
Apparatus for folding a cloth conveyed continuously along a conveying surface of a conveying device |
Sep. 21, 1999 |
| 5921908 |
Folding device and method for folding flat pieces of laundry in longitudinal direction |
Jul. 13, 1999 |
| 5797831 |
Vacuum hold down folder/gluers and process |
Aug. 25, 1998 |
| 5782737 |
Method of folding a vehicle safety airbag |
Jul. 21, 1998 |
| 5779614 |
Method and apparatus for folding toy balloons |
Jul. 14, 1998 |
| 5729954 |
Envelope flap opener apparatus |
Mar. 24, 1998 |
| 5730695 |
Method and apparatus for stacking folded towels and the like |
Mar. 24, 1998 |
| 5716312 |
Vacuum cylinder |
Feb. 10, 1998 |
| 5624366 |
Laundry sheet folding apparatus |
Apr. 29, 1997 |
| 5556360 |
High production folder construction |
Sep. 17, 1996 |
| RE35265 |
Bag folding system |
Jun. 4, 1996 |
| 5435802 |
Folder construction |
Jul. 25, 1995 |
| 5360387 |
Bag folding system |
Nov. 1, 1994 |
| 5299793 |
Multi-panel refolding transfer system with rotating transfer clamp |
Apr. 5, 1994 |
| 5300007 |
Folder construction |
Apr. 5, 1994 |
| 5197722 |
Cloth folding device with airblower for uncurling ends |
Mar. 30, 1993 |
| 5162035 |
Bag folding system |
Nov. 10, 1992 |
| 5094658 |
Vacuum side-folder section for envelope blank folding apparatus |
Mar. 10, 1992 |
| 5045044 |
Method and device for folding a paper web |
Sep. 3, 1991 |
| 5015317 |
Method and apparatus for making a multi-cellular collapsible shade |
May. 14, 1991 |
| 4850949 |
Apparatus for folding a band into accordion pleats including three panels |
Jul. 25, 1989 |
| 4840609 |
Bag folding machine |
Jun. 20, 1989 |
| 4756170 |
Applicator for crease-setting composition |
Jul. 12, 1988 |
| 4708332 |
Method and apparatus for zig-zag folding webs of paper and the like |
Nov. 24, 1987 |
| 4682977 |
Apparatus for folding spaced segments of web material |
Jul. 28, 1987 |
| 4624095 |
Folding and packaging system |
Nov. 25, 1986 |
| 4614512 |
Sheet folding machine |
Sep. 30, 1986 |
| 4578051 |
Film tube gusset forming machine |
Mar. 25, 1986 |
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