|
| US4029979 | 13 May 1976 | 14 Jun 1977 | The Garrett Corporation | Fluidic to electric transducer and method |
| US4250799 | 17 Abr 1979 | 17 Feb 1981 | Bowles Fluidics Corporation | Sweeping air stream apparatus and method |
| US4517881 | 24 Oct 1980 | 21 May 1985 | Bowles Fluidics Corporation | Sweeping air stream apparatus and method |
| US4534376 | 1 Sep 1983 | 13 Ago 1985 | Rosemount Inc. | Electric signal to pressure signal transducer |
| US5070898 | 11 Feb 1991 | 10 Dic 1991 | HSC Controls Inc. | Metering valve |
| US5184645 | 18 Nov 1991 | 9 Feb 1993 | HSC Controls Inc. | Shear orifice valve |