...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7396452 | Apparatus for determining flow rates of biological fluids An apparatus comprises an inlet to convey a first fluid comprising first and second components having different density into a rotating chamber such that an interface forms between at least portions of such components at a first location. At least one outlet removes... | 07/08/2008 |
| 7255670 | Three phase decanter centrifuge A three-phase decanting centrifuge is provided. Solids are removed from a slurry in the centrifuge in the conventional manner, as described above. The liquid separated from the slurry moves into a fluids reservoir. Centrifugal action classifies the fluids, with ligh... | 08/14/2007 |
| 6955637 | Separation device having a centrifugal rotor In a separation device for separating particles from a liquid, which is present in a container, a centrifugal rotor is rotatable around a vertical rotational axis. The centrifugal rotor has a tubular inlet member, which extends down into liquid to be treated and whi... | 10/18/2005 |
| 5913768 | Particle filter apparatus An apparatus and method are disclosed for filtering or separating particles. The apparatus has a motor coupled to a centrifuge rotor rotatable about an axis of rotation. A fluid chamber rotates with the rotor. A substance is supplied to the inlet of the c... | 06/22/1999 |
| 5254241 | Loading control system for a cyclical centrifugal machine which adjusts pinch position A loading control system for a cyclical centrifugal machine including a rotary centrifugal basket and a loading gate movable between closed and open positions to control delivery of charge material into the basket includes a mechanism for moving the loadi... | 10/19/1993 |
| 4968295 | Method of separating the constituents of the blood The invention relates to the control of a system in a blood centrifuge for separating the constituents (fractions) of the whole blood taken from a donor "in vivo" and provided with anticoagulants. A control is provided which as input quantity includes a s... | 11/06/1990 |
| 4900453 | Filter centrifuge control A filter centrifuge has a feeler arm which contacts the free surface of the centrifuge contents to signify by the angular displacement of the arm, the thickness of the layer of contents in the filter drum. On the contact surface of the filter arm, at leas... | 02/13/1990 |
| 4052303 | Method of operating a centrifugal filter and a filter centrifuge operating according to this method A method of operating a filter centrifuge or centrifugal filter in which a hydrostatic head is provided at the filtering surface so as to control liquid passage therethrough. The head may promote movement of the liquid through the filter layer or may indu... | 10/04/1977 |
| 4044943 | Centrifugal separator and system A constant flow rate input fluid of mixed gas, oil, water and suspended solids separates into its phases by centrifuging in a chamber of a multiple phase separator. Clean oil draws off through a mouth of a pitot tube tap which extends into the chamber. So... | 08/30/1977 |
| 3976242 | Self-emptying clarifying separator having a foam-free removal of the clarified liquid by means of a paring disk and an automatically operating system for detecting the level of the solids in the sludge chamber Centrifuge having a self-emptying clarifying drum outfitted with a clarified liquid paring chamber 7 and a clarified liquid paring disc 6. For controlling of emptying of the drum, an auxiliary paring chamber 4 is communicated via a control liquid passagew... | 08/24/1976 |