| Patents for F04D 33 - Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type (448) |
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| 10/16/1991 | CN2086817U Inflator with adjustable pressure |
| 10/08/1991 | US5054376 Electric ceiling fan |
| 05/02/1991 | DE3935502A1 Blood pump pendulum, bearing - uses contactless magnetic drive to produce swivel |
| 04/10/1991 | EP0421280A1 Precessing centrifugal pump integrally combined with a motor |
| 03/13/1991 | CN2073046U Miniature inflater |
| 03/06/1991 | EP0319565B1 A transporter |
| 02/04/1991 | WO1991002375A1 Microminiaturized electrostatic pump |
| 01/24/1991 | DE3937661A1 Electrically-operated ceiling fan |
| 10/09/1990 | US4961692 Oscillating vessel pump |
| 09/26/1990 | EP0368858A4 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same |
| 09/05/1990 | EP0385090A1 Heat exchanger having piezoelectric fan means |
| 09/03/1990 | CA2009799A1 Heat exchanger having piezoelectric fan means |
| 05/23/1990 | EP0368858A1 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same. |
| 05/08/1990 | US4923000 Heat exchanger having piezoelectric fan means |
| 04/17/1990 | US4917579 Transporter pump |
| 09/26/1989 | US4869650 Oscillating vessel pump |
| 09/13/1989 | EP0209522B1 Device for producing a directed liquid flow |
| 06/14/1989 | EP0319565A1 A transporter. |
| 05/30/1989 | US4834619 Ducted oscillatory blade fan |
| 05/24/1989 | CN2038164U Oscillating electric fan |
| 12/29/1988 | WO1988010371A1 A transporter |
| 12/06/1988 | US4789801 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same |
| 10/26/1988 | EP0287924A2 A pump by vessel revolution |
| 10/25/1988 | US4780062 Piezoelectric fan |
| 10/06/1988 | WO1988007785A1 Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same |
| 06/28/1988 | US4753579 Air blower |
| 06/28/1988 | US4753574 Device for producing a directed fluid flow |
| 08/04/1987 | US4684328 Acoustic pump |
| 01/28/1987 | EP0209522A1 Device for producing a directed liquid flow. |
| 08/14/1986 | WO1986004648A1 Device for producing a directed liquid flow |
| 06/17/1986 | US4595338 Non-vibrational oscillating blade piezoelectric blower |
| 04/01/1986 | US4578950 Double-acting rotary mechanism for combustion engines and the like |
| 01/21/1986 | US4565748 Pumping, lead, acid batteries |
| 11/27/1985 | EP0162051A1 Non-vibrating oscillating blade piezoelectric blower |
| 05/23/1985 | WO1985002231A1 Non-vibrating oscillating blade piezoelectric blower |
| 02/12/1985 | US4498851 Solid state blower |
| 03/21/1984 | EP0028245B1 Solid state blower |
| 03/06/1984 | US4435131 Linear fluid handling, rotary drive, mechanism |
| 05/24/1983 | US4384830 Methods of and/or apparatus for displacing fluids |
| 03/03/1983 | WO1983000725A1 Sealed centrifugal pump for the smooth pumping of fluids |
| 08/17/1982 | CA1129925A1 A.c. operated oscillating armature aquarium pump |
| 04/28/1982 | EP0050169A1 Oscillatory pump which can be used in pipelines |
| 01/20/1982 | EP0043877A1 Method and apparatus for displacing fluids by means of an oscillating blade |
| 08/27/1981 | EP0028245A4 Solid state blower. |
| 05/13/1981 | EP0028245A1 Solid state blower. |
| 11/13/1980 | WO1980002445A1 Solid state blower |
| 04/22/1980 | CA1075972A1 Oscillating plate pump and motor |
| 12/20/1977 | US4063826 Flexible, oscillating blade liquid pump |