Abstract: A check valve assembly is disclosed which is inserted in a fluid flow conduit leading from a source of fluid flow to a mechanism utilizing the fluid flow. The check valve assembly comprises a housing having an inlet port and an outlet port that communicate with a central chamber in the housing, and a valve disposed in the central chamber adapted to permit fluid flow from the inlet port through the chamber to the outlet port and prevent fluid flow from the outlet port through the chamber to the inlet port. The housing comprises a first attachment piece associated with the inlet port and adapted to be attached to the fluid flow conduit leading from the source of fluid flow, and a second attachment piece associated with the outlet port and adapted to be attached to one of several adapter elements. Various types of adapter elements are disclosed which include sections for connecting the adapter element to the second attachment piece and to the fluid flow conduit leading to the mechanism utilizing the fluid flow.

Abstract: A check valve assembly is disclosed comprising an upper housing section having an inlet port, a first outer rim portion and a platform section adjacent the outer rim portion, and a lower housing section having an outlet port and a second outer rim portion, the second rim portion extending adjacent the first rim portion and abutting the platform portion when the upper and lower housing sections are melted together, the first rim portion maintaining the melted portions of the upper and lower housing sections within the housing, the upper and lower housing sections being configured to facilitate the melting process.

Abstract: The invention is directed to a compact noise abatement muffler for an internal combustion engine. The muffler includes a housing having a plurality of chambers and fluid conductors for enabling the exhaust gases passing through the muffler to achieve at least 4 changes of direction of gas flow. The muffler of the invention is capable of reducing the sound pressure level of the exhaust gases between the input and exhaust ports of the muffler in the range of 10-25 decibels.

Abstract: A combination gas vaporizer-air filter comprising a housing fuel supply means for fluid to be vaporized and an ultrasonic transducer in the housing for vaporizing fluid from said fuel supply means, air inlet means in the housing, outlet means in the housing and air filter in the housing adjacent the air inlet means. The vaporized fluid and air in the housing being intimately mixed prior to discharge from the outlet means, duct means connecting said housing to the intake manifold of an internal combustion engine. The outlet means communicate with the duct means, whereby the mixture or vaporized fluid and air may pass from the outlet means to said duct and then to said intake manifold.

Abstract: An ultrasonic transducer is provided substantially at the hot spot in an engine manifold for vaporizing the fuel from the carburetor prior to entry of the fuel-air mixture into the cylinders. The transducer comprises a crystal adapted to be vibrated at a high frequency on the order of at least 1,000,000 Hz and a resonator tuned to the frequency of the crystal and operatively secured to the crystal, said transducer having an active surface adapted to be contacted by the fuel for finely vaporizing same. The fine vaporization or gasification of the fuel (gasoline, for example) prior to entry into the cylinders causes a more complete burning of the fuel. As a result, the engine delivers more power with less fuel, while carbon monoxide and hydrocarbon emissions are reduced.In operation, the ultrasonic transducer enhances cold weather startup and operation, eliminates engine flooding, smooths out engine idle, and improves pick up and acceleration by increasing power at low engine RPM.

Abstract: A device for mounting on the inlet manifold of an internal combustion engine for carbureting liquid fuel. A chamber is provided for receiving the liquid fuel. An ultrasonic generator is positioned in the chamber and is in direct communcation with the liquid fuel in the chamber. The ultrasonic generator acts to ultrasonically vaporize the fuel in the chamber, preferably by an electronic control system. The receiving chamber is interconnected to a gasified fuel storage chamber which acts to store a quantity of vaporized liquid fuel. The storage chamber and the receiving chamber are interconnected for passing vaporized liquid fuel from the receiving chamber to the storage chamber.