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Patents Published on 09/03/1991


See All Patents Issued In 1991


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NumberTitleIssue Date
5044332Elliptical valve stem for reducing turbulence in combustion engines
A valve stem construction (10) including a valve stem member (11) having one end (12) attached to the valve head (103) and provided with a generally elliptical cross sectional profile for reducing the turbulence in fluid passing over the valve stem constr...
09/03/1991
5044333Balancing arrangement for internal combustion engine
A balancer arrangement for a two cylinder in-line internal combustion engine that includes a drive gear formed on the crankshaft between a pair of throws and between a pair of bearing surfaces. A pair of balance shafts are driven from this drive gear and ...
09/03/1991
5044334Process for clean simple and high speed oil change and/or flushing of the moving components of the crankcase in an internal combustion engine
A process and apparatus for changing the oil in an engine and/or flushing and/or cleaning the moveable parts in the engine. The device includes an oil filter adapter adapted to be positioned in the oil filter boss, a remote oil filter mounting boss and in...
09/03/1991
5044335Monitoring arrangement for a fuel filter
A monitoring arrangement for a fuel filter of a diesel internal combustion engine is described. The metering of fuel of the diesel internal combustion engine is open-loop controlled or closed-loop controlled by an electronic control unit. This control uni...
09/03/1991
5044336Cylinder recognition apparatus and method for a multi-cylinder internal combustion engine
An improved cylinder recognition apparatus and method for a multi-cylinder internal combustion engine capable of recognizing a specific reference cylinder as well as the remaining cylinders of the engine by use of only a single signal. A signal generator ...
09/03/1991
5044337Control system for and method of controlling an internal combustion engine
A control system is provided for controlling the composition of a gas and fuel mixture supplied to an internal combustion engine. The output of an engine roughness detector (spark ignition engine) or an exhaust smoke detector (compression ignition engine)...
09/03/1991
5044338Fuel rail vibration damper
A reliable, consistent, facile, and economical mounting of a fuel rail on an engine for attenuating vibration between the fuel rail and the engine. An attaching bracket that is joined to the fuel rail has a hole that aligns with a threaded hole in the eng...
09/03/1991
5044339Fuel injection system for internal combustion engines
A fuel injection system for an internal combustion engine having a fuel supply line and at least one electromagnetically actuated fuel injection valve for metering a fuel injection quantity, which valve includes a mouthpiece fitting embodied on the valve ...
09/03/1991
5044340Fuel injectors having adapter grommet
The O-ring seal at the tip end of a particular model of fuel injector is replaced by an adapter grommet which provides an axial seal. This makes the fuel injector interchangeable with another model of fuel injector that is specifically designed for an axi...
09/03/1991
5044341Process and device for tank-ventilation adaptation in lambda control
In known methods for tank-ventilation adaptation, the last value of the charge factor is stored at the conclusion of the process and, when the process is restarted, is used directly as initial value of the charge factor for the tank-ventilation adaptation...
09/03/1991
5044342Automotive fuel injection system
An automotive fuel injection system for detecting as quickly as possible the occurrence of acceleration without employing a throttle sensor to thereby perform an asynchronous fuel injection for the purpose of maintaining the air-to-fuel ratio of the combu...
09/03/1991
5044343System and method for controlling fuel supply to an internal combustion engine
A system and a method for controlling fuel supply to an internal combustion engine are disclosed in which excessive supply of fuel to the engine is effectively prevented in a most reliable manner particularly at the time of engine deceleration. To this en...
09/03/1991
5044344Pressure-responsive fuel delivery system
A fuel delivery system for an internal combustion engine that includes a fuel supply with a fuel pump responsive to application of electrical power for supplying fuel under pressure to fuel injectors mounted on the engine. A pressure sensor is coupled to ...
09/03/1991
5044345Fuel pumping apparatus
A distributor type fuel injection pump has a main pumping plunger and an auxiliary plunger operable in synchronism by a cam. Also provided is a fluid pressure operable spill valve which is opened when the pressure of fluid developed by the auxiliary plung...
09/03/1991
5044346Fuel activation method and fuel activation device
A fuel activation device comprising a container unit disposed in the fuel pipe introducing fuel into the combustion engine and a functional ceramic charged in the container unit capable of contacting with fuel passing through the container unit thereby ac...
09/03/1991
5044347Device promoting the dispersion of fuel when atomized
A device is disclosed for promoting the dispersion of fuel on atomization in order to permit more complete combustion. The device is installed in the fuel line proximate the fuel atomizer and comprises a core surrounded by a non-conductive sheath so as to...
09/03/1991
5044348Igniter for an internal combustion engine
An igniter for an internal combustion engine has a plurality of drive circuits for generating an ignition voltage in the secondary winding of an ignition coil. A high-voltage diode is connected in series between the secondary winding of the ignition coil ...
09/03/1991
5044349High-voltage switch
A high-voltage switch is suggested, particularly for ignition systems of internal combustion engines, which is characterized by a voltage-controlled electronic high-voltage switching unit which passes suddenly from the blocking state into the conducting s...
09/03/1991
5044350Pitching machine
A machine for pitching baseballs includes two discs which are mounted on independently rotatable shafts. The discs have urethane at their peripheries. The spacing between the shafts can be adjusted in order to set the width of a gap between the discs. A b...
09/03/1991
5044351Shock absorber for sporting and hunting bows
A hydraulic or pneumatic shock-absorber for sporting and hunting bows is fitted, as a connecting element, between a stabilizing counterweight (spinner) and the bow in such a manner as to permit, between the counterweight and the bow, a movement which is d...
09/03/1991
5044352Large-burner stove with recessed burner well
A stove suitable for large-burner cooking with a high heat flame has an enclosed stove casing with an upper cooking surface, a hollow interior, and a burner well recessed into the interior of the casing. A large burner is positioned in the burner well, an...
09/03/1991
5044353Liquid fuel combustion type infrared ray irradiating apparatus
A liquid fuel combustion type infrared ray irradiating apparatus includes a base having a generally rectangular-shaped framework, each corner of which is provided with a wheel, a fuel tank fixed to the base, and a pump disposed on the base and adapted to ...
09/03/1991
5044354Apparatus for treating a life form with focussed shockwaves
An apparatus for treating a life form with focused shockwaves has a patient bed, a locating system and a shockwave source, as apparatus components with which shockwaves converging in a focal region that coincides with a therapeutically relevant region loc...
09/03/1991
5044355Reciprocating leg exercise apparatus with gear assembly
An exercise apparatus for physical therapy subsequent to knee injury and/or surgery, including a plurality of concave "J" shaped supports reciprocatingly and slidably mounted within an underlying support base. The support base includes an aligned row of e...
09/03/1991
5044356Applicator and gum massaging device
A handheld gum massaging device of the type which includes a wand with a movable distal dip zone and a handle connected to the wand which includes means to move the distal tip zone of the wand in a massaging action. The distal tip zone carries an element ...
09/03/1991
5044357Apparatus for increased volume hydrotherapy
A foot and leg hydrotherapy apparatus consisting of a housing forming a well that is adapted to receive a user's feet and lower legs. The inner walls of the well have a plurality of precisely directed jets that provide an adjustable air/water jet spray on...
09/03/1991
5044358Treatment bench
The treatment bench includes a stand which has mounted thereon a bench-section which can be swung relative to the stand about a horizontal pivot shaft. The pivotal bench-section carries a foot-rest at its one end and a patient-reclining surface substantia...
09/03/1991
5044359Passive spinal extension device
A device for passive extension of the spine including first and second support panels abutting in end to end alignment for supporting a person's body in a prone position. The upper portion of the person's body is supported on the first panel and the lower...
09/03/1991
5044360Orthosis with variable motion controls
A releasable controlled-motion ankle-foot orthosis includes an elongated shell adapted for releasable attachment to the lower leg above the ankle joint, a foot support adapted for releasable attachment to the foot, and lateral and medial controlled-motion...
09/03/1991
5044361Method and apparatus for reuse of anesthetics
A method and an apparatus for reuse of anesthetics in inhalation anesthesia is described. In the method, fresh gas is mixed with highly concentrated anesthetic from an anesthetics evaporator (3) in a collector conduit (1) leading into and out of a patient...
09/03/1991
5044362Lung ventilator device
A novel ventilating apparatus for the delivery of air or a desired gas mixture to a patient by displacement of an electric motor actuated piston in a chamber to expel such gas while electronic control ensures that the force applied to the piston is of a p...
09/03/1991
5044363Adsorption system for scavenging anesthetic agents from waste gas released during surgical activity
A cartridge loosely containing powdered activated charcoal is connected to a conventional anesthetic administration system of the type commonly used in veterinary surgical facilities. The cartridge is readily supported by a conventional anesthetic cart an...
09/03/1991
5044364Method and apparatus for flowing conditioned air onto person
A flexible treatment cover flows conditioned air onto a person positioned under the cover to assist in maintaining proper body temperature. The treatment cover has an inflated in use position above and out of contact with such person and a deflated flat s...
09/03/1991
5044365Rate-responsive pacemaker
A pacemaker has means for producing first and second signals one of which changes rapidly in response to changes in exercise level but may inaccurately represent the appropriate pacing rate. Such signal may be derived from a vibration sensor. The second s...
09/03/1991
5044366Rate responsive cardiac pacemaker
A rate responsive cardiac pacemaker for implantation in a patient utilizes a pair of sensors. One is an activity sensor responsive to movements of the patient for generating an electrical signal representative thereof. A preselected component of the elect...
09/03/1991
5044367Method and apparatus for switching cardiac stimulation signals
Cardiac stimulation signals are routed through a switching network to select only one cardiac stimulation signal as an output signal. The selected output signal may be routed to one of two patient electrode pairs for application to specific stimulation si...
09/03/1991
5044368Diagnostic electrode for use with magnetic resonance imaging
An improved intracranial diagnostic electrode for use with magnetic resonance imaging techniques includes an electrode body and at least one metallic contact supported by the body. An electrical lead wire is attached to the contact for connecting the cont...
09/03/1991
5044369Bent topless catheters
A topless catheter, which can be used as either a guiding catheter for guiding balloon dilatation catheters into a body lumen, or as a diagnostic catheter for conducting radio opaque dyes into a predetermined body lumen or both is disclosed. The topless c...
09/03/1991
5044370Probe with bar of piezoelectric elements for ultrasound apparatus
The electric connection between the control circuits (13,14) of a probe and the metallized faces (5,6) of the piezoelectric elements (2) of said probe is provided by metallizations (6,8) made on parts, support (1) or blade (4) in contact with said metalli...
09/03/1991
5044371Memory unit for controlling an ergometer
A memory unit for the non-volatile storage of data for controlling an ergometer with respect to the performance applied by the user in dependence on time and/or distance is formed as an independent structural unit which can be connected by the user to an ...
09/03/1991
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