| 8356990 |
Toggle drive system for driving in a thermoforming press |
Brian Keeley, James Martin, James Robbins |
2013-01-22 |
| 7399175 |
Thermoformer plug assist drive assembly |
— |
2008-07-15 |
| 6454557 |
Thermoforming machine with linear recirculation of sheet holding frames |
Victor L. Chun, Roland Karklin |
2002-09-24 |
| 6393942 |
Method of driving ejector pins to eject formed parts |
— |
2002-05-28 |
| 6200122 |
Thermoforming apparatus with improved press |
Victor L. Chun, Andrew P. Richard |
2001-03-13 |
| 6135756 |
Differential pressure forming, trimming and stacking apparatus |
— |
2000-10-24 |
| 6055904 |
Shut height adjustment and crank support arrangements and methods for a thermoforming press |
Victor L. Chun |
2000-05-02 |
| 5980231 |
Thermoforming machine with linear recirculation of sheet holding frames |
Victor L. Chun, Roland Karklin |
1999-11-09 |
| 5964134 |
Trim apparatus and method for trimming an article from a thermoplastic sheet |
— |
1999-10-12 |
| 5940953 |
Cart and method for changing tooling in a thermoformer machine |
Andrew P. Richard |
1999-08-24 |
| 5939107 |
Preheater for differential pressure forming machine |
Andrew P. Richard |
1999-08-17 |
| 5225213 |
Apparatus for differential pressure forming and trimming |
Gaylord W. Brown |
1993-07-06 |
| 4890524 |
Trim press with counterbalance |
Gaylord W. Brown |
1990-01-02 |
| 4676938 |
Differential pressure thermoforming and foam injection process and apparatus |
Roland Karklin, Terrance L. Brokoff, Edward J. Russell, James R. Greiner |
1987-06-30 |
| 4666544 |
Thermoforming methods |
Robert C. Whiteside, Roland Karklin |
1987-05-19 |
| 4608009 |
Thermoforming equipment for differential pressure forming products in thermoplastic material |
Robert C. Whiteside |
1986-08-26 |
| 4555377 |
Thermoforming methods and apparatus |
Robert C. Whiteside, Roland Karklin |
1985-11-26 |
| 4509909 |
Clamp mechanism for differential pressure thermoformer |
— |
1985-04-09 |
| 4502588 |
Apparatus and methods for transferring nested stacks of plastic articles from an elevated chute to an underlying conveyor surface |
Robert C. Whiteside, Fred L. Greynolds |
1985-03-05 |
| 4391768 |
Methods and apparatus for curling lips about the open mouths of stacked thermoplastic containers |
Ronald E. Henke |
1983-07-05 |
| 4377377 |
Differential pressure forming machine with variable mold closed cycle |
George L. Pickard, George West, Edward J. Russell |
1983-03-22 |
| 4306474 |
Trim press with oscillating canopy sheet feed |
George L. Pickard, George West |
1981-12-22 |
| 4255382 |
Thermoforming machine with automatically mechanically operated web stripping element |
Ronald E. Henke |
1981-03-10 |
| 4194663 |
Hydromechanical plastic web indexing system for synthetic plastics thermoforming machinery |
George West, George L. Pickard |
1980-03-25 |