Issued Patents All Time
Showing 26–50 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643970 | Method and apparatus for foam manufacture using carbon dioxide dissolved under pressure | Ferdinand Althausen, Herbert Steilen, Reiner Raffel, Robert Eiben, Wilfried Ebeling | 1997-07-01 |
| 5587182 | Apparatus for the production of endless polyurethane moldings | Lothar R ohrig | 1996-12-24 |
| 5547276 | Method and apparatus for continuously dispersing fine particle-sized solids in a liquid | Reiner Raffel, Ferdinand Althausen, Jurgen Wirth | 1996-08-20 |
| 5521224 | Method and apparatus for controlling the number of cells in polyurethane foam | Reiner Raffel, Herbert Steilen | 1996-05-28 |
| 5476638 | Process and device for the production of plastics from at least two free-flowing reactants | — | 1995-12-19 |
| 5453249 | Apparatus for producing a flowable reaction mixture from at least two flowable reaction components | Ferdinand Proksa, Helmuth Duschanek | 1995-09-26 |
| 5451376 | Process and apparatus for reprocessing polyurethane foam wastes, in particular flexible foam wastes, for recycling as additives in the production of polyurethane | Ferdinand Proksa, Ferdinand Althausen, Jurgen Wirth, Reiner Raffel | 1995-09-19 |
| 5443797 | Process and apparatus for the production of a flowable reaction mixture from at least two flowable reactive components | Ferdinand Proksa, Ferdinand Althausen, Helmut Duschanek, Reiner Raffel | 1995-08-22 |
| 5415540 | Apparatus for manufacturing molded plastic articles or for manufacturing hollow foamed articles | Ferdinand Proksa | 1995-05-16 |
| 5388975 | Apparatus for continuously manufacturing sandwich elements | Ferdinand Proksa, Hans Klonk, Reiner Raffel | 1995-02-14 |
| 5382603 | Process and apparatus for the preparation of a polyurethane reaction mixture | Kurt Krippl, Wilfried Ebeling, Jurgen Fietz, Reiner Raffel, Ferdinand Althausen | 1995-01-17 |
| 5330647 | Filter device for separating coarse components from liquid components | Ferdinand Althausen, Reiner Raffel | 1994-07-19 |
| 5312596 | Mixhead for mixing at least two free-flowing reaction components | Ferdinand Proksa, Ferdinand Althausen | 1994-05-17 |
| 5264167 | Process and apparatus for continuously manufacturing sandwich elements | Ferdinand Proksa, Hans Klonk, Reiner Raffel | 1993-11-23 |
| 5152943 | Process for the production of plastics from at least two free-flowing reactants | — | 1992-10-06 |
| 5143946 | Process and apparatus for the production of a flowable reaction mixture from at least two flowable reactive components | Ferdinand Proksa, Ferdinand Althausen, Helmut Duschanek, Reiner Raffel | 1992-09-01 |
| 5002704 | Apparatus for the production of a flowable mixture which reacts to form foam from flowable components stored in storage containers | Kurt Krippl, Klaus Schulte | 1991-03-26 |
| 5000882 | Apparatus for the preparation of a free-flowing mixture of free-flowing components which reacts to form foam | Ferdinand Proksa, Ferdinand Althausen, Gottfried Bucher, Reiner Raffel | 1991-03-19 |
| 4933115 | Process for the production of a flowable mixture which reacts to form foam from flowable components stored in storage containers | Kurt Krippl, Klaus Schulte | 1990-06-12 |
| 4917502 | Nozzle for the mixing of at least two flowable reaction components and process for operating such nozzle | Ferdinand Proksa, Reiner Raffel, Ferinand Althausen | 1990-04-17 |
| 4904451 | Process and device for the preparation of flowable reaction mixtures | Ferdinand Proksa, Ferdinand Althausen, Reiner Raffel | 1990-02-27 |
| 4895503 | Device to produce molded plastic parts from a flowable reaction mixture | Ferdinand Proska, Ferdinand Althausen, Reiner Raffel | 1990-01-23 |
| 4863010 | Double belt conveyor for the continuous production of laminates having a foam core foamed in situ between covering layers | Ferdinand Proksa | 1989-09-05 |
| 4775517 | Apparatus for the preparation of a reaction mixture from liquid components | — | 1988-10-04 |
| 4764536 | Process and apparatus for the preparation of a free-flowing mixture made of free-flowing components which reacts to form foam | Ferdinand Proksa, Ferdinand Althausen, Gottfried Bucher, Reiner Raffel | 1988-08-16 |