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| Number | Title | Issue Date |
| 4843883 | Differential pressure fluid level sensor A liquid fluid level sensor responds to differential pressure forces exerted on a diaphragm as produced by exposure of liquid fluid to one side and of atmosphere to the other side. An arched resistance card is movable with the diaphragm to engage the mid-... | 07/04/1989 |
| 4843884 | Method and system for ultrasonic detection of flaws in test objects A method, apparatus and system for the ultrasonic detection and evaluation of flaws in annular test objects including an arrangement of ultrasonic transducers that are rotated about the outer surface of the test object and provide an ultrasonic indication... | 07/04/1989 |
| 4843885 | Acoustic detection of bearing defects An apparatus for the detection of impact frequencies in moving railway train bearings which are characteristic of bearing defects. The apparatus transduces acoustic vibrations of the bearings into an electrical signal and extracts an envelope modulated ca... | 07/04/1989 |
| 4843886 | Pressure measuring device The pressure measuring device has a housing in which a pressure chamber is located in a pin extending freely in the interior of the housing from a base. The pressure chamber wall is deformable elastically under an applied pressure. In the free end portion... | 07/04/1989 |
| 4843887 | Method and device for measuring pressures in tubular bodies A method and a device for measuring the pressure in a tubular body, for example, in the nozzle of a plastics injection molding machine, in the injection pumps of diesel engines, in gun barrels and the like, makes use of electromechanical transducers of pi... | 07/04/1989 |
| 4843888 | Self aligning test grip A tensile test grip for holding a specimen has a pullrod that is mounted in an annular bore, and carries a piston head that fits within a piston chamber, and both the pullrod and piston head are sealed on their outer surfaces with respect to the body form... | 07/04/1989 |
| 4843889 | Trapped-vortex pair flowmeter A trapped-vortex pair flowmeter having a body with an inlet and an outlet. The inlet has a nozzle which forms a fluid jet having two primary counter-rotating vortices. The body has a chamber between the inlet and outlet through which the fluid jet flows. ... | 07/04/1989 |
| 4843890 | Coriolis mass flow rate meter having an absolute frequency output Apparatus and accompanying methods are disclosed herein for use in a Coriolis mass flow rate meter for producing an "absolute" frequency output. This method is illustratively implemented within a microcontroller through use of various software steps, two ... | 07/04/1989 |
| 4843891 | System for measuring force distributions System for measuring force distributions with individual force-measurement sensors that can be polled in sequence, providing a high level of mechanical and electric security against interference at a low cost in circuitry and controls. The measurement-sen... | 07/04/1989 |
| 4843892 | Method for determining the eye and/or head position of a vehicle-user and arrangement for carrying out the method In a method for determining the eye and/or head position of a vehicle-user, the position is determined on the basis of the adjusting parameters of a rear view mirror. The position can be determined therewith without difficulties and without special expend... | 07/04/1989 |
| 4843893 | Weathering testing system A testing system for determining accelerated weathering characteristics of various items such as fabrics and paint samples. Rack means are provided for carrying samples to be tested. A source of irradiation of the inner-facing surfaces of the samples carr... | 07/04/1989 |
| 4843894 | Measurement of sizes of falling particles For measuring the sizes of particles in the falling state, electromagnetic waves having different frequencies are transmitted from a transmitter/receiver onto the particles in the falling state and reflected electromagnetic waves having different frequenc... | 07/04/1989 |
| 4843895 | Test stand for R/C vehicles A portable test stand and track simulator for radio-controlled model racers has a cylindrical drum journalled for free rotation between arms extending from a vertical post pivotally mounted within aligned openings of a bracket attached to the upright slan... | 07/04/1989 |
| 4843896 | Probe for internal bore inspection An inspection probe is disclosed that is capable of maintaining a constant orientation within a tubular vessel while inspecting the vessel. The probe includes at least one inspection mechanism disposed in a body. Two sets of three spring biased centering ... | 07/04/1989 |
| 4843897 | Engine starter gearing Centrifugally disengageable engine starter gearing for selectively starting an engine having a starting gear. The engine starter gearing includes a power shaft, a sleeve slidably secured to the power shaft, a pinion gear slidably mounted to the power shaf... | 07/04/1989 |
| 4843898 | Wiper linkage of cross arm type A wiper linkage of the cross arm type is provided with a driving rod, an oscillation arm, two cross arms interlinking the driving rod and the oscillation arm, and restrictive alignment-free couplings connecting the cross arms between the driving rod and o... | 07/04/1989 |
| 4843899 | Gear drive with infinitely variable transmission ratio The gear drive or transmission comprises toothed elements whose radial spacing from a drive shaft can be selectively altered. There are two sets of such toothed elements whose aforementioned radial spacing can be infinitely varied in increments or sets. E... | 07/04/1989 |
| 4843900 | Apparatus for moving a head member A machine that takes screws out of a hopper and delivers them to a screw driving station where they are driven by motor operated screw driver members to secure a hinge to a door and a jamb. Inside the hopper, a screw lifting member engages, lifts, aligns ... | 07/04/1989 |
| 4843901 | Electric shift apparatus with manual override An electric shift apparatus for use with a motor vehicle having an automatic transmission. The apparatus includes a power module adapted to be mounted on the housing of the transmission proximate the transmission mode select shaft and a control module ada... | 07/04/1989 |
| 4843902 | Control system for powershift transmission clutches A control system for a multi-speed powershift gear transmission having multiple hydraulically actuated speed range clutches and directional clutches includes a control valve module having solenoid operated valves for conducting pressure fluid to a selecte... | 07/04/1989 |
| 4843903 | Intermittent drive for a paper supply roller An intermittent drive mechanism includes, a continuously rotating driving gear; a subsordinately driven gear disposed in a position close to the driving gear, an epicyclic gear being held in such a manner that it can be engaged with the driving gear by it... | 07/04/1989 |
| 4843904 | Work positioner A work piece positioning device which has a table upon which the work piece is supported is disclosed. The table is rotatably mounted on a sub-assembly which is tiltably mounted on a frame such that the work piece can be positioned in any desired predeter... | 07/04/1989 |
| 4843905 | Handle bar socket with air blowing and sounding function An air blowing and sounding handle bar socket connects onto the end of handle bars of bicycles and the like. A whistle inserted in the handle bar socket makes a pleasant sound when the handle bar socket is squeezed. Two semicircular air chambers are conne... | 07/04/1989 |
| 4843906 | Rear axlecase and methods of manufacturing thereof A rear axlecase is manufactured by casting the differential gear housings and the axle housings into an integral body from nodular graphite cast iron, and ensuring good ductility therefor by reducing the hardness as a whole on one hand, and ensuring tough... | 07/04/1989 |
| 4843907 | Hydromechanical power splitting transmission for vehicles A hydromechanical power splitting transmission for use between the prime mover and the axle power train of a vehicle having a planetary differential drive with at least two series of planetary wheels, two sun wheels, a web and annulus, a drive input shaft... | 07/04/1989 |
| 4843908 | Stepless speed-change power transmission for vehicle A stepless speed-change power transmission for vehicle having a fluid coupling, a forward/backward change-over mechanism coupled to a rear stage of the fluid coupling, and a stepless speed changer coupled to a rear stage of the forward/backward change-ove... | 07/04/1989 |
| 4843909 | Automatic transmission control method If a vehicle is at rest after it has been detected that the shift position of the vehicle transmission has been shifted to neutral, hydraulic pressure is introduced to a brake in the transmission gear train that is for establishing the first speed state. ... | 07/04/1989 |
| 4843910 | Pinion gear speed disc brake An improved braking system for a vehicle which has a wheel support in which an electric motor is housed having a drive shaft. A first and second planetary gear system are connected to drive the wheel from the motor drive shaft. The gear system includes a ... | 07/04/1989 |
| 4843911 | Speed reducing or increasing planetary gear apparatus A planetary gear apparatus includes: an external gear mounted on an input shaft with an eccentric member and a bearing fitted onto the eccentric member therebetween; an internal gear engaging with the external gear, the internal gear being coaxial with re... | 07/04/1989 |
| 4843912 | Variable stiffness support ring An improved support ring (50) is disclosed for supporting a plurality of planetary gear sets (20) which are driven by a centrally disposed input shaft (12) having a sun gear (16) attached thereto in which the planetary gear sets are subject to radially in... | 07/04/1989 |
| 4843913 | Transmission ratio control system for a continuously variable transmission A control system for a continuously variable transmission for a motor vehicle has a transmission ratio control valve having a spool for controlling oil supplied to a cylinder of a drive pulley to change the transmission ratio. The transmission ratio contr... | 07/04/1989 |
| 4843914 | Shift assisting device for marine propulsion unit Several embodiments of shift assisting devices for marine propulsion units wherein the torque of the engine is reduced if there is resistance to shifting by reducing the amount of fuel supplied to the engine. Embodiments are depicted and described wherein... | 07/04/1989 |
| 4843915 | Electronic control system for automatic vehicle transmission with means for determining abnormal operation of vehicle speed sensor An electronic control system for controlling an automatic transmission mounted on a vehicle determines whether a vehicle speed sensor is abnormal or not when the transmission gears are in a neutral gear position. If the vehicle speed sensor is abnormal, t... | 07/04/1989 |
| 4843916 | Automatic transmission control apparatus responsive to type of engine fuel A control apparatus for an automatic transmission detects, for example, octane values in order to determine the kind of gasoline used in the engine. The shift patterns of the automatic transmission are altered in accordance with the kind of fuel detected.... | 07/04/1989 |
| 4843917 | Accumulator control for hydraulic actuating pressure of automatic transmission friction clutch or brake The time rate at which pressure increases in a friction element engaged to produce a gear shift is controlled through operation of an accumulator. Shift valves in a hydraulic circuit produce selectively a connection between hydraulic lines associated with... | 07/04/1989 |
| 4843918 | System for controlling a continuously variable transmission having a torque converter A continuously variable belt drive transmission has a torque converter with a lockup clutch. The transmission ratio of the transmission starts to change in accordance with driving conditions of a vehicle, and the lockup clutch is engaged in accordance wit... | 07/04/1989 |
| 4843919 | Reduction gear unit A reduction gear unit which comprises a housing, an input shaft rotatably supported in the housing, an eccentric cam member integrally fixed on the input shaft, an idler gear rotatably provided around the eccentric cam member, and a drive plate member pro... | 07/04/1989 |
| 4843920 | Combined forward pressure and torque converter control for automatic transmission A control for an automatic transmission with a lock-up type torque converter, comprises a lock-up control valve, a forward clutch control valve, an electromagnetic valve, and a shuttle valve. The shuttle valve normally assumes a first position where a con... | 07/04/1989 |
| 4843921 | Twisted cord actuator This invention relates particularly to a drive mechanism for converting rotary to unidirectional linear movement for use in actuation of hinged members of robotic, prosthetic, and other like devices. The twisted cord actuator includes a motor with an axia... | 07/04/1989 |
| 4843922 | Hydraulic control system for automatic transmission A hydraulic control system for an automatic transmission detects the rotating speed of the parts whose rotating speed varies due to shifting, and controls the transitional oil pressure applied to the frictionally engaging device in the automatic transmiss... | 07/04/1989 |
