| 5861078 |
Method and apparatus for detecting a seal on a plastic bag |
John J. Huben, John Schmidt, Charles H. Sauder, Kevin O. Heindel, Thomas C. Jansen |
1999-01-19 |
| 5701180 |
Apparatus and method for detecting a formation in a sheet material |
Kevin O. Heindel, James G. Morrow, Sr. |
1997-12-23 |
| 5660674 |
Method and apparatus for registration of a seal and perforation on a plastic bag |
Peter J. Gietman, Jr., Nicholas J. Nagel, Kevin O. Heindel |
1997-08-26 |
| 5587032 |
Method and apparatus for registration of a seal on a plastic bag |
Peter J. Gietman, Jr., Nicholas J. Nagel |
1996-12-24 |
| 5518559 |
Method and apparatus for registration of a seal on a plastic bag |
Peter J. Gietman, Jr. |
1996-05-21 |
| 5488480 |
Apparatus and method for detecting a heat seal in a moving plastic film |
Kevin O. Heindel, James G. Morrow, Sr. |
1996-01-30 |
| 5390875 |
Method and apparatus for interleaving plastic bags |
Peter J. Gietman, Jr. |
1995-02-21 |
| 5377929 |
Method and apparatus for interleaving plastic bags |
Peter J. Gietman, Jr. |
1995-01-03 |
| 5362013 |
Method and apparatus for interleaving plastic bags |
Peter J. Gietman, Jr. |
1994-11-08 |