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Patent No. 5719655

System for magnetically attaching templeless eyewear to a person

A system of eyewear that eliminates the need for hinges on the frames of the eyewear.

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Attorney: Lewis; J. G.


Number of patents: 65
Last date: July 23, 1991

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NumberTitleIssue Date
5034621Inductive proximity switch exhibiting magnetic field immunity
A proximity switch assembly (10) for signaling the location of a movable member (36) at either of opposite end limits of movement relative to a stationary frame (44, 46) includes a compact elongate housing (58) adapted to be mounted on the frame to extend...
07/23/1991
4943401Process for making silicon nitride articles
A process for making silicon nitride articles of manufacture such as an internal combustion engine valve (2) by providing a homogeneous water-base slurry of silicon nitride powder and at least one nitriding agent and permitting the slurry to age for a tim...
07/24/1990
4940109Split arm throttle cable intervention device
A vehicle engine throttle valve control device (10) is applied intermediate the vehicle operator's accelerator pedal (14) and the engine's throttle body (12) to selectively override or modify the operator's ability to control vehicle/engine speed and to a...
07/10/1990
4922197High resolution proximity detector employing magnetoresistive sensor disposed within a pressure resistant enclosure
A tachometer sensor adapted for measuring the rotation of a gear or spline shaft target within a high pressure environment includes an integrally formed housing having a generally tubular elongate probe defining a sealed interior cavity receiving an annul...
05/01/1990
4914388Dual output sensor for detecting the proximity of a reciprocating member
A proximity switch assembly (10) for signaling the location of a movable member (36) at either of opposite end limits of movement relative to a stationary frame (44,46) includes a compact elongate housing (58) adapted to be mounted on the frame to extend ...
04/03/1990
4914389Multiturn shaft position sensor with backlash compensation
The present invention is a shaft position sensor for detection of the position of a multiturn shaft. The rotation of the multiturn shaft is converted into a linear motion via a multiturn screw and two axially spaced non-rotating nuts which are oppositely ...
04/03/1990
4912397Transducer linearizing system
A system (20) for linearizing a non-linear transducer output signal (s2) which may be amplified to a non-linear output signal (s2) by suitable amplifier means (2) by providing signal (s2) to both a summing or linearization...
03/27/1990
4898266Double element electroviscous fluid clutch
An electroviscous fan clutch (10) is employed as an accessory drive mechanism within a truck or automobile. A shaft (36), either driven by the engine or drivig a load (31), carries a clutch member (14) arranged for fluid engagement with a body member (12)...
02/06/1990
4898267Electroviscous fluid clutch
An electroviscous fan clutch (10) is employed as an accessory drive mechanism within a truck or automobile. A shaft (36), either driven by the engine or driving a load (31), carries a clutch member (14) arranged for fluid engagement with a body member (12...
02/06/1990
4875009Circuit board and sensing coil positioning system for proximity sensor
A proximity switch assembly (10) for signaling the location of a movable member (36) at either of opposite end limits of movement relative to a stationary frame (44,46) includes a compact elongate housing (58) adapted to be mounted on the frame to extend ...
10/17/1989
4874072Viscous fan drive control with integrated speed sensor
A viscous fan clutch (10) is typically employed in a fan drive mechanism within a truck or automobile. A shaft (18), driven by the engine (12), rotates a clutch member (42) within the fan drive. The clutch member is arranged for fluid engagement with a bo...
10/17/1989
4850322Method and apparatus for positioning a torque motor armature
A torque motor and throttle body are integrated within a single assembly for application with an internal combustion engine charge air inlet. The butterfly valving element of the throttle body and rotor of the motor are mounted on a common shaft, the posi...
07/25/1989
4846325Friction brake for variable speed viscous fan control
A viscous fan clutch (10) is typically employed in a fan drive mechanism within a truck or automobile. A shaft (18), driven by the engine (12), rotates a clutch member (42) within the fan drive. The clutch member is arranged for fluid engagement with a bo...
07/11/1989
4845627Remote programmable controller
Automated manufacturing equipment (10) such as robot arms for performing a manufacturing operation on a work piece (12) have a relatively stationary host machine (14) with central programmable logic means (16) which receive various parametric inputs (26) ...
07/04/1989
4841235MRS current sensor
A current sensor (10) comprising spaced pole pieces (62, 64) and a magnetic shunt (80) bridging the pole pieces within an insulating housing assembly (12) which also contains a magnetoresistive transducer (90) and electronic circuitry (16) for sensing mag...
06/20/1989
4828088Closed loop pulse modulated viscous fan control
A viscous fan clutch (10) is typically employed in a fan drive mechanism within in a truck or or automobile. A shaft (18), driven by the engine (12), rotates a clutch member (42) within the fan drive. The clutch member is arranged for fluid engagement wit...
05/09/1989
4819597Clocked current torque motor control
A torque motor and throttle body are integrated within a single assembly for application with an internal combustion engine charge air inlet. The butterfly valving element of the throttle body and rotor of the motor are mounted on a common shaft, the posi...
04/11/1989
4812747Transducer linearizing system
A system (20) for linearizing a non-linear transducer output signal (s2) which may be amplified to a non-linear output signal (s2) by suitable amplifier means (2) by providing signal (s2) to both a summing or linearization...
03/14/1989
4805463Torque transducer
A torque transducer (10) generates a signal representing torque applied to an input shaft (12) to the transducer. The input shaft is resiliently connected to an output shaft (14), permitting limited relative rotation between the two which is sensed by the...
02/21/1989
4779590Engine throttle control with low idle speed actuation force
An air throttle (10) for an internal combustion engine has a butterfly-vane (16) mounted for rotation in the engine charge air inlet (15). The butterfly-vane is mounted on a rigid tubular shaft (18) having an idle air bleed slot (22) therethrough with a t...
10/25/1988
4698562Motor electrical positioning system and the application thereof within vehicle traction drives
A drivetrain (48) for an electric passenger vehicle (10) includes a battery (40) for energizing a single-phase A.C. traction motor (18) which drives a ground engaging wheel (12) through a multispeed transaxle (20). The motor is characterized by an externa...
10/06/1987
4651066Ferrite permanent magnet electrical machine and the application thereof within vehicle traction drives
A drivetrain (48) for an electric passenger vehicle (10) includes a battery (40) for energizing a single-phase A.C. traction motor (18) which drives a ground engaging wheel (12) through a multi-speed transaxle (20). The motor is characterized by an extern...
03/17/1987
4609905Tire condition monitoring system
Tire pressure monitors (10) are incorporated in vehicles (12) having pneumatic tires (15) to continuously or periodically measure air pressure within each tire and to alert the driver should the pressure in any of the tires fall below a predetermined valu...
09/02/1986
4590413EV drivetrain inverter with V/HZ optimization
An inverter (34) which provides power to an A.C. machine (28) is controlled by a circuit (36) employing PWM control strategy whereby A.C. power is supplied to the machine at a preselectable frequency and preselectable voltage. This is accomplished by the ...
05/20/1986
4582475Method and apparatus for igniting combustible mixtures
A combustible mixture composed of a flowing fuel and gaseous oxygen is ignited by exposing one or both of the constituents of the mixture to a region of corona discharge in order to generate molecular radicals which subsequently combine with radicals of t...
04/15/1986
4537353Low-power acoustic injector drive circuit with enhanced turn-on
An acoustic fuel injector system comprises a DC-to-DC converter (14) for supplying a regulated voltage to a frequency controlled oscillator (16) which drives the injector valve (18) or valves. The converter comprises a flyback oscillator (28) including a ...
08/27/1985
4532460Pre-start rotor positioner for an electric vehicle
A drivetrain (48) for an electric passenger vehicle (10) includes a battery (40) for energizing a single-phase A.C. traction motor (18) which drives a ground engaging wheel (12) through a multi-speed transaxle (20). The motor is characterized by an extern...
07/30/1985
4513836Vehicle speed control
A pneumatically operated speed governor (26) moves an engine throttle member (10) for controlling the speed of a vehicle. The governor includes a pneumatically operated actuator having an output connected to the engine throttle member. A pivotally mounted...
04/30/1985
4491768Pulse width modulation inverter with battery charger
An inverter is connected between a source of DC power and a three-phase AC induction motor, and a microprocessor-based circuit controls the inverter using pulse width modulation techniques. In the disclosed method of pulse width modulation, both edges of ...
01/01/1985
4484619Vehicle temperature control system
A heating and air conditioning control system having a compressor clutch cycle control feature for controlling the in-car temperature of a vehicle passenger compartment is disclosed. The system comprises an automatic temperature control (ATC) sensor (32) ...
11/27/1984
4470381Hydraulic tappet for direct-acting valve gear
A hydraulic lash adjusting tappet 10 for use in engine valve gear of the direct acting type having one end of the tappet contacting the end of the combustion chamber valve stem 26 and the other end contacting the camshaft lobe 16. The tappet has the body ...
09/11/1984
4458798Rotary magnetic control for a viscous fluid coupling
A viscous fan clutch (10) is typically employed in a fan drive mechanism within a truck or automobile. A shaft (12) driven by the engine, rotates a clutch member (24) within the fan drive. The clutch member is arranged for fluid engagement with a body mem...
07/10/1984
4458194Method and apparatus for pulse width modulation control of an AC induction motor
An inverter is connected between a source of DC power and a three-phase AC induction motor, and a micro-processor-based circuit controls the inverter using pulse width modulation techniques. In the disclosed method of pulse width modulation, both edges of...
07/03/1984
4449401Hot film/swirl fluid flowmeter
A low pressure drop hot film/swirl air flowmeter (10) for an automotive engine is disclosed. The flowmeter includes a main air flow passage (18), a relatively small venturi (20) disposed within the passage for receiving a portion of the air flow, a consta...
05/22/1984
4443785Low power put timer circuit and the application thereof within a tire pressure monitor
Tire pressure monitors are incorporated in vehicles having pneumatic tires (14) to continuously or periodically measure the air pressure within the tires and to alert the driver should the pressure in one of the tires fall below a predetermined value. A s...
04/17/1984
4428231Viscous link drive for fluid flowmeter
A low pressure drop hot film mass air flowmeter (10) for an automotive engine is disclosed. The flowmeter includes a main air flow passage (20), a fixed contoured flow nozzle (22) disposed in the main air flow passage to establish a localized pressure dif...
01/31/1984
4428393Quick vent response valve
A quick vent response valve (12) is fluidically series connected between a vacuum regulator valve (14) and an exhaust gas recirculation valve (16) which comprises a fluid pressure control system (10). The quick response valve operates to vent the system m...
01/31/1984
4422518Vehicle speed control
A pneumatically operated speed governor (26) moves an engine throttle member (10) for controlling the speed of a vehicle. The governor includes a pneumatically operated actuator having an output connected to the engine throttle member. A pivotally mounted...
12/27/1983
4419977Fuel injection system and timing advance device therefor
A hydraulic advance device for selectively transmitting applied forces to a fuel injector of an internal combustion engine. The device is operative to select a normal or advanced timing of the fuel injection. An outer cylindrical body (66) is mounted in t...
12/13/1983
4418568Hot film fluid flowmeter with auxiliary flow sensing
A low pressure drop hot film/swirl air flowmeter (10) for an automotive engine is disclosed. The flowmeter includes a main air flow passage (18), a relatively small secondary passage such as a venturi (20) disposed within the passage for receiving a porti...
12/06/1983
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