|
| US3953153 | 17 May 1974 | 27 Apr 1976 | Sundstrand Corporation | Multiple displacement pump system and method |
| US4043704 | 15 Jul 1975 | 23 Aug 1977 | Uniscrew Limited | Double-acting rotary expansible chamber pump adaptable to series or parallel operation |
| US4183352 | 12 Oct 1977 | 15 Jan 1980 | | Pressure-isolating circulating pump for solar water heating |
| US5328337 | 15 Feb 1993 | 12 Jul 1994 | | Guided vanes hydraulic power system |
| US5573035 | 22 Apr 1994 | 12 Nov 1996 | | Guided vanes hydraulic power system |
| US6296456 | 10 Dec 1999 | 2 Oct 2001 | Dana Automotive Limited | Positive displacement pump systems with a variable control orifice |
| USD345802 | 12 Mar 1992 | 5 Apr 1994 | Breg, Inc. | Therapeutic fluid pump |
| USD345803 | 12 Mar 1992 | 5 Apr 1994 | Breg, Inc. | Therapeutic fluid flow controller |
| USD352781 | 12 Mar 1992 | 22 Nov 1994 | Breg, Inc. | Therapeutic fluid flow line |