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Actor Marlon Brando has four patents, all named "Drumhead tensioning device and method."
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| Number | Title | Issue Date |
| 7595576 | Brush-less type rotation detector shielding structure It is possible to provide a brush-less type rotation detector shielding structure capable of reducing the interference of magnetic flux leaking from a rotation transformer to a stator iron core and rotor iron core and suppressing lowering of the angle detection accu... | 09/29/2009 |
| 7152476 | Measurement of motions of rotating shafts using non-vibrating contact potential difference sensor An apparatus having a non-vibrating contact potential probe. The non-vibrating contact potential probe is capable of measuring the chemical and geometrical irregularities on a rotating shaft. The chemical and geometrical information can be used to determine various ... | 12/26/2006 |
| 7068015 | Wind power plant having magnetic field adjustment according to rotation speed A wind power plant where the driving shaft communicates with a synchronous generator (3) optionally through a gear (2) and with a transformer, if any, communicating through an AC/DC inverter 7 with an HVDC transmission cable 9. The synchr... | 06/27/2006 |
| 6952152 | Winding fixing structure of a rotary transformer-type resolver A spacer 2 is provided between an inner core 62 and a resolver rotor 63, which are respectively attached to a rotary shaft 68. A cutout groove 42 is formed at a flange 41 of the inner core 62. A fixing groove 3 | 10/04/2005 |
| 6713924 | Brushless motor having isosceles sided stator coils and position detection capability A three-phase brushless motor includes a rotor with a permanent magnet having P (P is an integer not less than two) polarities and a stator facing the rotor and having plural coils shaped in approx, triangle or trapezoid. A space between adjacent coils is (360/P)×(... | 03/30/2004 |
| 6118201 | Resolver with leakage flux absorber A brushless resolver comprising a housing, a rotor rotatably mounted in the housing, a rotary transformer comprising a primary winding carried by the housing and secondary winding on the rotor and operatively associated with the primary winding, a resolve... | 09/12/2000 |
| 6097129 | Electronically commutated motor An electronically commutated external rotor motor has an external rotor having a cup-shaped housing and a radially magnetized permanent magnet connected in the cup-shaped housing. An interior stator is positioned in the cup-shaped housing. The interior st... | 08/01/2000 |
| 5705872 | Brushless resolver A brushless resolver having a stator and a rotor, and a resolver part axially displaced to one another and a transformer part and having associated windings is provided. An additional short-circuited winding arranged parallel with the transformer rotor wi... | 01/06/1998 |
| 5144180 | Two-stator induction synchronous motor A two-stator induction synchronous motor includes a unitary rotor having a first rotor assembly and a second rotor assembly each of which is formed by a permanent magnet and a rotor core. The first rotor assembly and the second rotor assembly respectively... | 09/01/1992 |
| 4719560 | Rotary phase generator and system A rotary phase generator for generating 3 phase voltage is provided which can operate off of 230 or 460 volts A-C. Also provided is a rotary phase generator which has two groups of running capacitors for providing a stable voltage on the third phase at no... | 01/12/1988 |
| 4048520 | Three-phase SCR drive circuit using an opto-coupled pulse amplifier A three-phase shift network includes a single transistor which controls phase shift by introducing a variable resistance into the network as determined by a D.C. control signal supplied to the transistor. The three-phase signals generated from the phase s... | 09/13/1977 |
