Celebrity Inventors
Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8093841 | System and method for faster response time in stereo/mono detection An audio receiver may include a mono/stereo detector that causes the audio receiver to output either a monophonic or a stereophonic signal based on a difference between a pilot energy signal and a filtered pilot energy signal. The audio receiver includes a filter th... | 01/10/2012 |
| 7402964 | Race car system A race car system is disclosed. An illustrative embodiment of the race car system includes at least one car, at least one video camera provided on the at least one car, a car transmitter/receiver connected to the at least one video camera, a remote control transmitt... | 07/22/2008 |
| 7375478 | Servo drive with high speed wrapping function A servo drive with high speed wrapping function is applied for servo control of wrapping wire and method for the same. The servo drive includes a wrapping mechanism, a rotation control unit for controlling rotation of the wrapping mechanism, a lateral motion control... | 05/20/2008 |
| 7311629 | Transmission with a steplessly adjustable transmission ratio, with or without branched power and with or without an electrical machine A branched power transmission having several transmission ratio ranges with a steplessly adjustable transmission ratio. A drive shaft is connected to both shafts of a variable speed unit through a distributor transmission, which shafts in turn are connected with the... | 12/25/2007 |
| 7302320 | Failure mode operation for an electric vehicle An electric vehicle is described herein which includes a microprocessor based interface module which is used to control electric motors coupled to drive wheels. The interface module is configured to include a backup communications link to allow an operator to contro... | 11/27/2007 |
| 7228253 | Instrument mounting system with dual encoders The present invention provides a way to measure the position of an instrument that is mounted on an instrument shaft within a clutched mounting system, the instrument shaft being driven through a reduction gearbox by a motor shaft. The position of the instrument is ... | 06/05/2007 |
| 7220199 | Infinitely variable power branching transmission with two operating modes An infinitely variable power branching transmission with first and second operating modes, whereof the components are distributed between two power paths connecting in parallel an engine to vehicle wheels. At least two planetary trains, two electrical machines, a re... | 05/22/2007 |
| 7117965 | Control apparatus and method for taking failure countermeasure for hybrid vehicular drive system In control apparatus and method for taking failure countermeasure for a hybrid vehicular drive system, on a lever diagram of a planetary gear mechanism, a revolution speed order is a first motor/generator, an engine, the output member, and a second motor/generator, ... | 10/10/2006 |
| 7065966 | Position control method by motor drive and control unit A position control method by motor drive including of rotating a rotor of the motor drive according to the given target opening, and detecting the opening of a movable vane by an encoder, the motor drive opening and shutting a passage of an intake air pipe to a turb... | 06/27/2006 |
| 7034481 | Power transmission device for hybrid vehicle To provide a power transmission device that can increase the range of speed variation between an engine and a power output shaft and effectively achieve reduction in size and cost of the device arrangement. The speed reduction ratios from an engine 1 to first... | 04/25/2006 |
| 7026780 | Method for stabilizing the movement of an articulated chain of a chain block, especially to prevent the formation of a resonance oscillation of the chain, and a chain block apparatus The invention concerns a method for stabilizing the motion of an articulated chain of a chain block, especially to prevent the formation of resonance oscillation of the chain, in which an articulated chain is led across a polygonal chain wheel with non-uniform pitch... | 04/11/2006 |
| 6642688 | Throttle and AC motor control throughout shifts of multi-speed transmissions The problem of losing throttle control when controlling an AC motor throughout transmission shifts has been solved for a finite set of discrete waveforms. The solution requires making as many discrete speed waveform tables as there are gear ratios in the ... | 11/04/2003 |
| 6636010 | Precision dosage apparatus, system and method A liquid dispensing system increases the precision, reliability, and safety of dispensing medications and other liquids. An electronic brake grounds a power terminal of a pump motor to absorb the kinetic energy of the motor and other mechanically coupled ... | 10/21/2003 |
| 6600988 | Vehicle trajectory control system and method A method for controlling a powertrain of a vehicle is described. The method determines a desired vehicle condition based on three driver actuated elements. In a preferred embodiment the first element can be pedal position, the second element can be a brak... | 07/29/2003 |
| 6566826 | Power transmitting apparatus for hybrid vehicle and method of controlling power transmitting apparatus A power transmitting apparatus for a hybrid vehicle having an engine, first and second power distributors, and first and second motors includes a rotation transmitting unit for transmitting a drive power of the second motor to a power output shaft at a sp... | 05/20/2003 |
| 6531842 | Sine wave variable speed drive The present technique utilizes already existing components within a variable speed drive to provide harmonic filtering characteristics. Particularly, the present technique integrates transformers and inductors to provide a filter within the variable speed... | 03/11/2003 |
| 6346784 | Power transmission apparatus A power transmission apparatus manipulates the transmission of power of the mechanical and/or electrical form. The power transmission apparatus is constructed integrating together a power-transmitting device and a transmission interaction redistributing m... | 02/12/2002 |
| 6157147 | Power transmission apparatus A power transmission apparatus manipulates the transmission of power of the mechanical and/or electrical form. The power transmission apparatus is constructed integrating together a power-transmitting device and a transmission interaction redistributing m... | 12/05/2000 |
| 6051950 | Positional determination device using a stepping motor A positional determination device which is drived according to the pulse signals output to a stepping motor 1 and displaces a nut 2 to a position corresponding to the degree of rotation. In order to adjust the initializing position of a feed mechanism, th... | 04/18/2000 |
| 6047104 | Electrical generators and motors in which at steady-state the rotor and its electromagnetic field rotate at selectively different angular speeds A rotating field, synchronized electric generator or motor in which the magnetic field that the armature produces can rotate relative to the stator at a speed significantly different from that of the armature, under electronic or other control that obviat... | 04/04/2000 |
| 5640074 | Vibration dampening method and apparatus for band driven precision motion systems A method and apparatus are disclosed for joining a drive band to the driven element of a servo-controlled precision motion system. A vibration dampening clamp assembly absorbs unwanted vibration energy. The clamp assembly utilizes energy absorbing molded ... | 06/17/1997 |
| 5101143 | Spindle control system A spindle control system enables a gear change while a spindle is rotating by calculating the position of a motor shaft when gears are reengaged by a target position calculating circuit, and outputting speed commands for the motor shaft by a position cont... | 03/31/1992 |
| 4841202 | Speed-limited electrically compensated constant speed drive An electrically compensated constant speed drive which is speed limited so that power flow through the speed compensation link is unidirectional includes a permanent magnet generator which is interconnected with a permanent magnet motor by a power convert... | 06/20/1989 |
| 4708030 | Multi-range starter-generator drive A starter-generator drive usable in an aircraft must be of the smallest possible size and the lowest possible weight and have maximum reliability. A drive having a multi-speed transmission and a controllable hydro-viscous dissipative clutch can be interpo... | 11/24/1987 |
| 4695776 | Power converter for an electrically-compensated constant speed drive An electrically-compensated constant speed drive according to the present invention includes a speed summer having first and second input shafts and an output shaft at which constant speed motive power is developed wherein the first input shaft is coupled... | 09/22/1987 |
| 4692671 | Electrically-compensated constant speed drive An electrically-compensated constant speed drive according to the present invention includes a speed summer having first and second input shafts and an output shaft at which constant speed motive power is developed wherein the first input shaft is coupled... | 09/08/1987 |
| 4691148 | Control circuit for electric vehicles The foot-operated accelerator develops digital signals progressively larger in number as the accelerator is moved through its range from a rest position to full speed. A variable transmission has a sensor that generates digital signals progressively large... | 09/01/1987 |
| 4525655 | Two stage electric drive An electric motor drive system having a first direct current electric motor, a first drive shaft to which the first electric motor is coupled, a second direct current electric motor having a higher power rating than the first, a second drive shaft to whic... | 06/25/1985 |
| 4177410 | Stretchable material rewinding machine Web tension in a creped paper rewinder is controlled at two stations along the web route by respective counter-weighted dancer rolls which also serve as sensors for a drive speed control mechanism. Primary drive speed is under programmed control whereby a... | 12/04/1979 |
| 4102394 | Control unit for oil wells A control unit for oil wells for maximizing the efficiency of a producing oil well field, including the use of a variable speed AC motor powering each oil well pump jack, which enables the operator to control the strokes per minute on the pump unit and ad... | 07/25/1978 |
