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 |
| 5027758 | Fuel system for crankcase scavenged two cycle spark ignition engines A fuel system for crankcase scavenged two cycle spark ignition engines which includes a specialized valve assembly connecting a source of propane gas and a source of oil to the engine. An automatic main valve connects the source of gas to the engine port ... | 07/02/1991 |
| 5027759 | Fuel injection and gasifying system for two-stroke engine A fuel injection and gasifying system for an internal combustion engine is disclosed. The combustion system includes a piston assembly with a piston furnished with a gasifying chamber, a cylinder which contains the combustion apparatus, a crank assembly w... | 07/02/1991 |
| 5027760 | Variable timing system for engine valve operating gear The system features an assembly of components for each inlet and/or exhaust valve or set of valves that comprises a moving control finger inserted between the surface of the cam and a generously proportioned flat surface offered by the tappet or pushrod. ... | 07/02/1991 |
| 5027761 | Valve operating mechanism for internal combustion engine with a spark plug insertion hole in a rocker arm holder An internal combustion engine includes a cylinder block having a cylinder bore, a cylinder head having a combustion chamber communicating with the cylinder bore, a spark plug supported in the cylinder head and having electrodes disposed in the combustion ... | 07/02/1991 |
| 5027762 | Lubrication system for multi-cylinder engine A lubrication system for a multi-cylinder internal combustion engine has a valve drive mechanism equipped with a row of hydraulic valve lash adjusters installed in a cylinder head of an engine block of the engine and a camshaft with journals which is disp... | 07/02/1991 |
| 5027763 | One-piece push rod having enlarged spherical seat A one-piece push rod and method of making same is provided which includes the step of swaging at least one end of a hollow tube to define a seat portion having an extended spherical surface for inhibiting interference with a rocker arm socket. Preferably,... | 07/02/1991 |
| 5027764 | Method of and apparatus for igniting a gas/fuel mixture in a combustion chamber of an internal combustion engine A method of and an apparatus for igniting a gas/fuel mixture in at least one combustion chamber of an internal combustion engine, said combustion chamber being supplied with fuel and gas, are suggested in which an expanding pulse-shaped pressure wave of h... | 07/02/1991 |
| 5027765 | Method of pneumatic injection of fuel into a cylinder of a reciprocating internal combustion engine and a corresponding injection device Scavenging a cylinder of an engine with fuel-free fresh air and injection with atomized liquid fuel by a pressurized gas are accomplished independently, at specific moments during by the operating cycle of the engine. The fuel is atomized and injected int... | 07/02/1991 |
| 5027766 | Load adjustment device A load adjustment device is provided having a throttle valve which determines the output of an internal combustion engine and is connected, fixed for rotation, to a throttle-valve shaft (32) which is mounted in a throttle-valve-shaft housing (30). The sha... | 07/02/1991 |
| 5027767 | Fuel injection pump for internal combustion engines A fuel injection pump including a housing having an adjustable coupling device on the outside of the housing by which the speed governor can be adjusted from outside the housing of the fuel injection pump. By use of the adjustable coupling device on the o... | 07/02/1991 |
| 5027768 | Fuel injection control system for diesel engine In a system for controlling an injection timing are detected an oxygen concentration in an exhaust gas, and a specific gravity of a fuel. A smoke concentration is calculated based on the oxygen concentration and the fuel specific gravity. The fuel injecti... | 07/02/1991 |
| 5027769 | Throttle valve control apparatus Throttle valves are individually disposed in a plurality of intake passages of an engine. In normal operation condition of the throttle valves, a first control device controls the throttle valves according to the detection result of an operation condition... | 07/02/1991 |
| 5027770 | Ignition controller An engine ignition controller in which, when a transmission is set at the first speed stage, ignition timing is set on the basis of an angle advance characteristic for causing the output of an engine to be decreased. Immediately before a vehicle speed rea... | 07/02/1991 |
| 5027771 | Method and apparatus for controlling ignition timing for marine engine An apparatus for controlling an ignition timing for a marine engine has a temperature sensor for detecting a cold or warm-up state of the engine and for outputting an ON/OFF signal, and has an ignition timing controller for receiving the signal from the t... | 07/02/1991 |
| 5027772 | Engine knock control system The generation of knocking in an engine is controlled by an engine knock control system, which comprises circuit such as a magneto for generating a reference signal in synchronous with a rotation of the engine and an ignition circuit responsive to the ref... | 07/02/1991 |
| 5027773 | Control device for an internal combustion engine A control device for an automotive engine provided with a fuel injection valve determines the current value of a parameter (e.g. the mean effective combustion pressure) indicative of the output power of the engine, and compares it to the target value ther... | 07/02/1991 |
| 5027774 | Spark ignition engines There is described a motor vehicle having a spark ignition engine in an engine compartment and having automatic advance and retard device to advance or retard the angle of the firing of the spark relative to the top dead center of the pistons in the cylin... | 07/02/1991 |
| 5027775 | Apparatus for controlling combustion condition Disclosed is an apparatus for controlling a combustion condition of an internal combustion engine having a plurality of combustion cylinders. The combustion condition of the engine can be detected sensitively by the minimum number of combustion condition ... | 07/02/1991 |
| 5027776 | Fuel pumping apparatus A rotary distributor type of fuel pumping apparatus has a distributor member 10 mounting cam actuated pumping plungers 14. During inward movement of the plungers an electromagnetically operable valve 32 is operated which when open allows fuel under pressu... | 07/02/1991 |
| 5027777 | Fuel injection rail manufacturing means and process and fuel injection rail made accordingly The invention concerns a single-block fuel injection rail. The rail according to the invention comprises at least one rectilinear hollow tube, to which are joined at least one fuel intake tip, at least one injection intake and rail fastening means. The ra... | 07/02/1991 |
| 5027778 | Fuel injection control apparatus An air injector is provided in the vicinity of a fuel injector. By the fuel injector and the air injector, the droplet diameter of a gasoline spray included an air-fuel mixture supplied to a cylinder of the engine is controlled. When the fuel injector is ... | 07/02/1991 |
| 5027779 | Fuel injection control apparatus for an internal combustion engine A fuel injection control apparatus for an internal combustion engine adapted to operate, at a predetermined timing, the time of starting fuel injection on the basis of a revolution speed of the engine and a fuel injection time and to start fuel injection ... | 07/02/1991 |
| 5027780 | Air-fuel control device for an internal combustion engine An air-fuel ratio control device for an internal combustion engine, the device comprising a unit for detecting a first fuel purge condition from the canister after the fuel tank is filled with fuel, and for reducing the amount of fuel to be supplied to th... | 07/02/1991 |
| 5027781 | EGR valve carbon control screen and gasket The invention relates to an improvement to exhaust gas recirculation (EGR) systems and in particular to a high temperature resistant wire screen affixed to the inlet opening of a carbon gasket for sealing the EGR valve to the manifold of an automobile eng... | 07/02/1991 |
| 5027782 | Fuel control system for an automobile engine A fuel control system for an automobile engine includes various sensors for detecting the running conditions of the engine, an injector or injectors for supplying fuel to the engine, and a control unit for reducing or cutting the amount of fuel to be supp... | 07/02/1991 |
| 5027783 | Carburetor for an internal combustion engine Both a system for an method for feeding gasoline fuel into a gasoline internal combustion engine are disclosed herein. This system and method is suitable for use after an internal combustion engine has been started and warmed to normal operating temperatu... | 07/02/1991 |
| 5027784 | PCV system with a check valve device A PCV system with a check valve device oriented in a vertical direction and including a valve body, a seat member, and a stopper plate. The valve body includes a valve head constructed of elastomer. The seat member includes a valve seat surface on a lower... | 07/02/1991 |
| 5027785 | Simplified ignition system for multi-cylinder engines Fuel is sequentially injected directly into each cylinder of a an engine that has at least three cylinders. Then, an ignition potential is applied to all cylinders simultaneously, but at an angle that ensures that only a selected one of the cylinders expe... | 07/02/1991 |
| 5027786 | Bow string release A bow string release includes a sear mounted in a body for pivotal movement between a string retaining position and a string release position. A notch is provided in the body for receiving the bow string. A release member is pivotally mounted within the b... | 07/02/1991 |
| 5027787 | Single cavity gas oven and grill unit A single cavity gas oven and grill unit provided with an oven burner (14) and an independent grill burner (15). A flue (12) has a flap (16) pivotable between a closed position for the oven mode and an open position for the griling mode. The flap (16) is c... | 07/02/1991 |
| 5027788 | Barbecue kettle cart An improved cart (50) for holding a barbecue kettle (10) is disclosed. The kettle (10) is supported by a pair of opposed side brackets (67) that are fastened on each side to a horizontal upper side member (53). The cart (50) has a tray assembly that inclu... | 07/02/1991 |
| 5027789 | Fan control arrangement for a two stage furnace The present invention involves a two stage furnace and a method of controlling the fans. In the furnace, a high pressure switch indicates whether sufficient air is present to support high combustion. Normally the furnace operates at one of the combustion ... | 07/02/1991 |
| 5027790 | Oil-removal structure for range hoods An oil-removal structure for range hoods which is characterized by a water container integrally formed with an air-guiding case, into which at least one electrothermal element may be positioned to heat water contained therein so that an oil meltable tempe... | 07/02/1991 |
| 5027791 | Air and water supply apparatus for endoscope An air and water supply apparatus for an endoscope having an elongated insert part and a control part connected to the proximal end of the insert part, comprising a cylinder provided in the control part, a pair of first air and water tubes for supplying a... | 07/02/1991 |
| 5027792 | Endoscopic revision hip surgery device An endoscopic resecting system views and resects a grouting agent or osseus tissue from the femoral canal during revision hip surgery. The endoscopic system includes a compartmentalized tube, a visualizing device, an illuminating device, a first resecting... | 07/02/1991 |
| 5027793 | Surgical retractor A surgical retractor is disclosed for use when surgery is performed adjacent a bone and remains in place for an appropriate duration without requiring manual assistance. A barrier member includes a plurality of cannulated fixation posts for its temporary ... | 07/02/1991 |
| 5027794 | Exercise device An exercise device for working one's arms or legs is disclosed. The exercise device includes a crank assembly with a stationary frame and a rotating crankshaft attached thereto. The crankshaft is fitted with either handgrips or shoe plates to which an ind... | 07/02/1991 |
| 5027795 | Massage machine for automobile A massage machine for an automobile which comprises a main body suspendaly supported on the back rest of an automobile seat by way of a height-adjustable suspending member, a plurality of ceramic finger pressure balls rotatably borne on the front surface ... | 07/02/1991 |
| 5027796 | Gum massager A periodontal tool for use in promoting good oral hygiene by helping to control both oral plaque and inflammation of gingiva tissues (gums) is disclosed. A half-cylinder shaped head or mouthpiece, comprising sturdy, relatively short, closely packed nodule... | 07/02/1991 |
| 5027797 | Apparatus for the movement of blood by external pressure A program of regular vascular exercise involves repeating cycles of blood movement obtained by seating the user in the base portion of the apparatus and clamping a top member shell to the base portion. Under the user's control pressurizing apparatus, cont... | 07/02/1991 |