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Class Information
Number: 493/207
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 yieldable, heated means
Description: Method or apparatus including a member from which energy is to flow to the workpiece surface which member is urged toward the workpiece by means intended to yield.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6792807 |
Method and apparatus for sensing a seal on a film |
Sep. 21, 2004 |
| 6719867 |
Heat sealer for thermoplastic films |
Apr. 13, 2004 |
| 6210308 |
Apparatus and method for sealing foil material |
Apr. 3, 2001 |
| 6190296 |
Apparatus for machining a material web |
Feb. 20, 2001 |
| 5964688 |
Linear clamping assembly for bag sealing machines |
Oct. 12, 1999 |
| 5236543 |
Apparatus for welding the sealing seam on a package |
Aug. 17, 1993 |
| 5019027 |
Method and apparatus for sealing reclosable flexible containers without spot sealing |
May. 28, 1991 |
| 4753629 |
Cam driven hem sealer |
Jun. 28, 1988 |
| 4734088 |
Apparatus for making bags |
Mar. 29, 1988 |
| 4713047 |
Tubular bag closing machine |
Dec. 15, 1987 |
| 4692135 |
Sealer for side gusseted bags |
Sep. 8, 1987 |
| 4650535 |
Apparatus for heat-sealing thermoplastic sheeting |
Mar. 17, 1987 |
| 4430069 |
Method and apparatus for sealing and cutting plastic films |
Feb. 7, 1984 |
| 4128049 |
Apparatus for manufacture of pad stacked bags or the like |
Dec. 5, 1978 |
| 4118912 |
Method of securing a commodity in a plastic bag |
Oct. 10, 1978 |
| 3952636 |
Case erector |
Apr. 27, 1976 |
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