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Class Information
Number: 493/209
Name: Manufacturing container or tube from paper; or other manufacturing from a sheet or web > Container making > Pliable container (e.g., bag, envelope, etc.) > Including heat sealing > By reciprocatory heat sealer
Description: Method or apparatus including use of means to raise the thermal level of the sheet or web workpiece, which means moves to-and-fro along a straight line or about a fixed pivot point during operation.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7497065 Reciprocating sealer for web converters Mar. 3, 2009
7404789 Machine and method for making filter bags for infusion products Jul. 29, 2008
7396321 Pouch packaging machine having adjustable operating orientations Jul. 8, 2008
7389623 Seal apparatus Jun. 24, 2008
7204794 Machine and method for making filter bags for infusion products Apr. 17, 2007
7174699 Combination seal bar and cutter Feb. 13, 2007
7067037 Modular reciprocating heat seal jaw assembly Jun. 27, 2006
6871476 Heat sealing and cutting mechanism and container forming apparatus incorporating the same Mar. 29, 2005
6629917 Sealer apparatus for plastic film processing including an adjustably mounted seal bar, particularly for bag making machines Oct. 7, 2003
6564843 Fastener tape, method of and apparatus for making fastener tape, method of using fastener tape, and reclosable bag utilizing fastener tape May. 20, 2003
6422987 Apparatus for producing recloseable bags Jul. 23, 2002
6422986 Sealer apparatus for forming a cross seal in plastic film processing and particularly for bag making machines Jul. 23, 2002
6416453 Seal bar mechanism for bag machines Jul. 9, 2002
6210308 Apparatus and method for sealing foil material Apr. 3, 2001
6190296 Apparatus for machining a material web Feb. 20, 2001
6117059 Method of manufacturing a filtration bag Sep. 12, 2000
6027438 Method and apparatus for manufacturing a fluid pouch Feb. 22, 2000
5976300 Method of sealing a port tube in a container Nov. 2, 1999
5964688 Linear clamping assembly for bag sealing machines Oct. 12, 1999
5934048 Seal assembly for easy open pouch Aug. 10, 1999
5885411 Modular sealing machine Mar. 23, 1999
5865941 Device for sealing plastics films Feb. 2, 1999
5830118 Packaging machine for forming free-standing pouches Nov. 3, 1998
5772565 Heat sealer Jun. 30, 1998
5713181 Carton bottom seal Feb. 3, 1998
5705026 Modular sealing machine Jan. 6, 1998
5662575 Method and apparatus for continuously forming bags Sep. 2, 1997
5620542 Apparatus and method for sealing valved bags transported by a conveyor Apr. 15, 1997
5588944 Apparatus for welding the tubular sections of sacks, bags or the like Dec. 31, 1996
5575880 Method for stamping heat-sensitive sheets Nov. 19, 1996
5571370 Apparatus for heat-sealing thermoplastic materials Nov. 5, 1996
5398486 Tubular bagging machine for the continuous manufacture of bags having folded sides Mar. 21, 1995
5282778 Method for making bags of synthetic material Feb. 1, 1994
5236543 Apparatus for welding the sealing seam on a package Aug. 17, 1993
5230688 Servo driven components of a bag machine Jul. 27, 1993
5107659 Method of and apparatus for continuous bakery product wrapping Apr. 28, 1992
5094657 Method and apparatus for continuously forming and sealing low density polyethylene bags at high speed Mar. 10, 1992
5088971 Method of making protruding end stops for plastic reclosable fastener Feb. 18, 1992
5080747 Heat sealing mechanism with linearly movable seal bars Jan. 14, 1992
5019027 Method and apparatus for sealing reclosable flexible containers without spot sealing May. 28, 1991
5014497 Method and apparatus for smoothing of bag making material in form, fill and seal machines May. 14, 1991
5015325 Perforating means for apparatus for heat-sealing thermoplastic sheeting May. 14, 1991
5009632 Method and device for joining foil hoses Apr. 23, 1991
4994137 Bag making machine sealer slitter apparatus Feb. 19, 1991
4986804 Method for forming angular seals in side-gussetted bags Jan. 22, 1991
4946432 Device for sealing and perforating a thermoplastic film Aug. 7, 1990
4895556 Sealing element for angle seals and T-shirt bags Jan. 23, 1990
4860621 Heat knife holding device for heat cutting plastic films Aug. 29, 1989
4861414 Easy-open flexible pouch and apparatus and method for making same Aug. 29, 1989
4838977 Process and apparatus for making plastic carrying bags or sacks Jun. 13, 1989

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