Quotables
"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4836154 | Poppet valve assembly with apertures An intake or exhaust valve assembly for use in a four cycle internal combustion engine including a primary poppet valve, said primary poppet valve having at least one aperture disposed through its valve body and a secondary poppet valve body mounted to se... | 06/06/1989 |
| 4815420 | Two-stroke internal combustion engine An internal combustion engine includes a single sluice (3) which opens asymmetrically and one-sidedly in an exhaust channel (5) and which runs tangentially within the cylinder (1), diagonally to the cylinder head. A rotating flow is thus obtained in the c... | 03/28/1989 |
| 4813395 | Two-cycle engine and method of operation A method and system, including a valve (32) for controlling the amount of fluid purged from a cylinder (12) of a two-cycle engine prior to the combustion of an air-fuel mixture within the cylinder especially during low demand periods of engine operation. ... | 03/21/1989 |
| 4807579 | Turbocompounded two-stroke piston engines The cylinder head (401) of a turbocompounded 2-stroke piston engine incorporates, for each cylinder (400), an indirect combustion chamber (402) which is connected to the cylinder clearance volume (413) by a passage (412). The indirect combustion chamber (... | 02/28/1989 |
| 4807571 | Exhaust timing control apparatus An exhaust timing control apparatus for two-cycle engines of the type having one or more exhaust ports extending outwardly from the cylinder. A valve body is pivotally mounted within the exhaust passage in a recess specifically provided therefore. The val... | 02/28/1989 |
| 4809145 | Free-standing (self-supporting) lamp shade A device for controlling the illumination within a room without touching the light or its power source. This device includes the use of a shade which blocks the light emitted.... | 02/28/1989 |
| 4807572 | Timing of fuel injected engines A method of operating a two-stroke spark ignition engine (9) wherein the fuel is injected directly into the combustion chamber (22). The timing of the injection of the fuel is varied according to engine load and speed conditions. Under low load and speed ... | 02/28/1989 |
| 4807099 | Lighting fixtures A fluorescent light fixture is provided which is suitable to be interchangeable with an incandescent lighting fixture recessed in a ceiling which includes a connector plug adapted to be inserted in a conventional incandescent lamp socket extending from a ... | 02/21/1989 |
| 4803960 | Internal combustion engine, particularly, a free-piston engine An internal combustion engine comprises a cylinder and a piston axially movable within the cylinder and formed with cylindrical projections extending axially outwardly from the piston and being of a smaller diameter than that of the piston. The piston and... | 02/14/1989 |
| 4802449 | "O"-Type engine construction This invention relates to an internal combustion engine comprising a combustion chamber having at least two rigidly fixed inner wall surfaces and at least three movable inner wall surfaces reciprocally mounted and adapted to reciprocate from a first posit... | 02/07/1989 |
| 4802452 | Engine intake system An intake system for an internal combustion engine comprises: an intake passage having an intake port and an inertial supercharging intake pipe leading from the passage; a rotary valve in the intake pipe and rotatable for opening and closing the intake pi... | 02/07/1989 |
| 4800849 | Two cycle engine with injected fuel at intake passage A two-cycle internal combustion engine with a transfer pressure plate affixed to the intake passage, the transfer port pressure plate has a central aperture with a plurality of jets directed into that central aperture area, the jets being fed by a conduit... | 01/31/1989 |
| 4800858 | Collapsible wall engine This invention relates to an internal combustion engine comprising: a combustion chamber having at least one rigidly fixed inner wall surface and at least two movable inner wall surfaces reciprocally mounted and adapted to reciprocate from a first positio... | 01/31/1989 |
| 4798183 | Swirl chamber type combustion chamber for diesel engine In a swirl chamber type combustion chamber for a diesel engine having an injection passage provided for to guide the stream of combustion gas gradually spreading right and left during the injection from the swirl chamber to the main combustion chamber, a ... | 01/17/1989 |
| 4799136 | Lighting fixture having concave shaped reflector and improved asymmetric light reflection system A lighting fixture adapted for uniformly illuminating a wall surface by utilizing an asymmetric light reflection pattern. The fixture includes a support housing and an elongated concave-shaped reflector which is pivotably attached to the support housing a... | 01/17/1989 |
| 4796623 | Corneal vacuum trephine system A corneal vacuum trephine system including a suction ring having an annular suction ring surface configured to define a suction annular space positionable against the eye. A vacuum device creates a vacuum in the suction annular space to secure the suction... | 01/10/1989 |
| 4797795 | Control system for variable parameter lighting fixtures Improvements are disclosed to systems adapted for the control of automated or variable parameter lighting fixtures and devices capable of varying a plurality of beam parameters such as the pan, tilt, size, shape, color, and focus on the basis of desired a... | 01/10/1989 |
| 4794886 | Intake device of an internal combustion engine An intake device of an engine comprising a surge tank. The interior of the surge tank is divided into a first interior chamber and a second interior chamber by a separating wall. The separating wall has a cutaway portion into which the separating wall por... | 01/03/1989 |
| 4794889 | Fuel puddle bleed shut-off for fuel injected two cycle engine A marine fuel injection system for a two cycle crankcase compression internal combustion engine includes a puddled fuel return line (44) between the crankcase (16) and a vapor separator (33). A shut-off valve (50) in the puddled fuel return line (44) is c... | 01/03/1989 |
| 4794887 | Reciprocatory internal combustion engines A three-cylinder four-stroke internal combustion engine has first and third diametrically opposed pistons and a third piston arranged to reciprocate on an axis at right angles to that of the cylinders. A connecting link assembly is connected at its upper ... | 01/03/1989 |
| 4794888 | Fuel puddle suction system for fuel injected engine A marine fuel injection system for a two cycle crankcase compression internal combustion engine includes a puddled fuel return line (44) having an outlet (44b) in the excess fuel return line (43) from the fuel injector (24) and pressure regulator (26) to ... | 01/03/1989 |
| 4793294 | Apparatus for controlling a variable-effective-length air intake system The control apparatus is intended for use in controlling a variable-effective-length air intake system of the type which has two volumetric chambers connected, respectively, to two groups of engine cylinders and which incorporates a flow control valve for... | 12/27/1988 |
| 4791898 | V-engine with yoke A V-engine is provided with a scotch yoke and connecting rods attaching plural pistons to the yoke such that the power stroke of both pistons is substantially simultaneous and the return strokes are substantially silmultaneous. Piston dwell is introduced ... | 12/20/1988 |
| 4791899 | Acoustic detonation suppression in internal combustion engine The piston of an internal combustion engine has an odd number of sockets formed in the top surface thereof. With the piston in its top dead center position, a thin slit is formed between the cylinder head and the top of the piston. The sockets form acoust... | 12/20/1988 |
| 4791894 | Reciprocating piston engine This invention relates to improvements in engines of the reciprocating piston type, especially reciprocating piston internal combustion engines suitable for stationary and non-stationary uses. The pistons of the engine are operatively connected to the dri... | 12/20/1988 |
| 4791892 | Two-stroke engine A two stroke engine including a single piston housing, a transfer port, an inlet port in the housing, an exhaust port in the housing, a piston located in the housing, a connecting rod integral with or otherwise rigidly secured to the piston, a crankcase l... | 12/20/1988 |
| 4790270 | Direct fuel injected engines In a two-stroke spark ignition engine, fuel is injected through the cylinder wall at a location opposite to and above the level of the exhaust port (120). The fuel is delivered in the form of a number of streams such as, for example, streams (60), (61), (... | 12/13/1988 |
| 4791537 | Vehicle accessory assembly with sliding door for mounting on a visor or other interior panel A vehicle accessory assembly is disclosed for mounting on an interior panel, such as on a visor, for example, and includes an accessory devce, such as a vanity mirror assembly, interconnected with the visor or other vehicle panel at a generally fixed loca... | 12/13/1988 |
| 4788945 | Process and apparatus for controlling a gas evacuation circuit of a rotational distribution motor Method and device for controlling an exhaust gas circuit of a rotary distribution engine, enabling to empty the dead volumes of burnt gases at the top dead center at the end of the exhaust and at the beginning of the intake, through a secondary exhaust co... | 12/06/1988 |
| 4788944 | Internal combustion engine An internal combustion engine includes a housing having a first cylinder chamber and a second cylinder chamber, wherein the cylinder chambers are perpendicular to each other. Each cylinder chamber includes a reciprocating piston assembly having a compress... | 12/06/1988 |
| 4787341 | Pressure assist piston for internal combustion engine A controlled pressure combustion chamber for a reciprocating engine. The engine includes a main cylinder and a main reciprocating piston. In the cyliner head is a second cylinder which opens to the first cylinder. A free piston in the second cylinder in s... | 11/29/1988 |
| 4788629 | Instrument panel members An instrument panel member comprising a multiple-ply back sheet of fiberglas reinforced material impregnated with a polyester resin, a multiple-ply front sheet of the same material and one or more electroluminescent (EL) lamp elements positioned therebetw... | 11/29/1988 |
| 4785770 | Coaxial pump and motor cylinder engine A two-cycle engine having upper and lower cylindrical gas chambers controlled by an inter-chamber passageway. The lower gas chamber acts as the combustion chamber. The upper gas chamber is divided into two parts by a piston wherein the lower portion of th... | 11/22/1988 |
| 4785774 | Piston for an internal combustion engine A piston for an internal combustion engine including a crown, a skirt and bosses. The skirt has a circumferentially extending faucet rib in a lower portion of the skirt and reinforcing ribs which extend in a thrust and thrust-opposing direction of the pis... | 11/22/1988 |
| 4785385 | Traffic light lens A lens (16) suitable for use with traffic lights has a body portion (20) that is a segment of a sphere and a mounting or sealing ring (21) at the periphery of the body portion. An array of lenticular elements (22) is formed on the concave inner surface of... | 11/15/1988 |
| 4784090 | Intake device for outboard engine An induction system for a two-cycle crankcase compression internal combustion engine of the type employed in an outboard motor. As such, the engine has vertically disposed crankcase chambers. Two barrel carburetors serve the crankcase chambers of the cyli... | 11/15/1988 |
| 4785383 | Lamp unit having glass reflector member with mount structure A molded glass reflector member for a lamp unit employing a tungsten halogen lamp as the light source is disclosed wherein the engagement means for mounting said lamp unit replaceably in a socket member includes a particular configuration of the hollow ca... | 11/15/1988 |
| 4782796 | Unsymmetrical free piston engine An unsymmetrical and balanced free piston engine of economical construction in which the engine cylinder requires no liner. A housing surrounding the cylinder is opened for cylinder machining and is adapted for space-saving vertical mounting. It has an op... | 11/08/1988 |
| 4782797 | Induction system An induction system for a multiple cylinder internal combustion engine that employs a pair of plenum chambers with a common air inlet. An exhaust gas recirculation system is provided for distributing exhaust gases equally to the chambers of the engine by ... | 11/08/1988 |
| 4782429 | Long-life luminaires There is provided a luminaire primarily for use with exit signs and other emergency-type lighting comprising a series string of low-voltage, extremely long-life filaments positioned within a sealed enclosure for protection and electrically connected to a ... | 11/01/1988 |
