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| Issue 1298-3 |
| US 6,945,276 B2 |
| Valve with unilaterally constrained piezoelectric bending element as actuating device |
| Erich Dörfler, Landsberg-Erpfting (Germany); Bernhard Russ, Peiting (Germany); Günther Strasser, Rottenbuch (Germany); and Rainer Teltscher, Waakirchen (Germany) |
| Assigned to Hygrama AG, Zug (Switzerland) |
| Filed on Jun. 16, 2003, as Appl. No. 10/461,882. |
| Claims priority of application No. A 917/2002 (AT), filed on Jun. 18, 2002. |
| Prior Publication US 2003/0230346 A1, Dec. 18, 2003 |
| Int. Cl.7F16K 11/04 |
| U.S. Cl. 137—625.44 [251/11; 251/75; 251/243; 251/303] | 15 Claims |
| 1. A valve with a displaceable actuating device (1) which controls the movements of at least one actual sealing device (3) for opening and closing, and the actuating device is loaded by an elastic element (5) essentially in a perpendicular direction relative to the direction of displacement, and the longitudinal axis of the actuating device and the force that is exercised by the elastic element are aligned in one position of the actuating device between its extreme positions wherein the actuating device (1) is realized as a unilaterally constrained piezoelectric bending element. |