| 9891000 |
Center heating element for a vacuum heat treating furnace |
— |
2018-02-13 |
| 9719149 |
Load transport mechanism for a multi-station heat treating system |
Hendrik Grobler, Kevin Michael Woerner |
2017-08-01 |
| 9617611 |
Quenching process and apparatus for practicing said process |
Werner Hendrik Grobler, Bernd Edenhofer |
2017-04-11 |
| 9441886 |
Work load lifting system for a vertical vacuum furnace |
Jake Hamid |
2016-09-13 |
| 8992213 |
Sealing mechanism for a vacuum heat treating furnace |
Werner Hendrik Grobler, Jake Hamid |
2015-03-31 |
| 8662888 |
Loading system for a heat treating furnace |
Christopher S. Hawkins |
2014-03-04 |
| 6903306 |
Directional cooling system for vacuum heat treating furnace |
— |
2005-06-07 |
| 6756566 |
Convection heating system for vacuum furnaces |
— |
2004-06-29 |
| 6533991 |
Cooling gas injection nozzle for a vacuum heat treating furnace |
— |
2003-03-18 |
| 6307874 |
Expansion loops for heating elements in vacuum furnaces |
— |
2001-10-23 |
| 5930285 |
Heating element support for an electric heat treating furnace |
— |
1999-07-27 |
| 4906182 |
Gas cooling system for processing furnace |
— |
1990-03-06 |
| 4612651 |
Heat treating furnace with heating element hangers and radiation shield spacers |
Eric H. Wolter |
1986-09-16 |
| 4608698 |
Electric heat treating furnace with quickly serviceable heating assembly components |
Eric H. Wolter |
1986-08-26 |
| 4560348 |
Gas nozzle for a heat treating furnace |
Eric H. Wolter |
1985-12-24 |
| 4559631 |
Heat treating furnace with graphite heating elements |
— |
1985-12-17 |