Abstract: An orifice device communicable with a vacuum source comprises a first and a second orifice means of sintered metal. The first orifice means is usually closed by a flexible one-way check valve which may keep closed when the air flows in one direction and may be released from the first orifice means when the air flows in the other direction. The air flow normally is passed through the second orifice means thereby to be restricted in both directions, whereby the orifice means are effective independently of each other. Another embodiment is disclosed wherein a flexible member is mounted in and restricts flow in one direction through the central portion of a single sintered metal element.

Abstract: A combustible mixture of air and minute fuel droplets is produced for supply to the cylinders of an internal combustion engine. The engine includes a carburetor having a main air passageway in it, and an intake manifold interposed between the engine and the carburetor. The intake manifold includes at least one wall defining a plurality of fluid passageways operatively connected to the carburetor and to the combustion chambers of the engine. A throttle structure is mounted in the intake manifold. The combustible mixture is formed by introducing liquid fuel into a stream of intake air and uniformly distributing the fuel in the air by passing the air and fuel mixture through a constriction to increase the velocity of the mixture to sonic speed. The constriction occurs at the throttle structure in the manifold. The area of the constriction and the amount of fuel entering the air stream are adjustable for correlation with engine demand.

Abstract: A volatile anesthetic vaporizing apparatus including a concentration control flow valve means actuated by a substantially linear rotary dial for dividing an inflowing gas stream into two separate streams, one stream being passed over liquid anesthetic to pick up a vapor and the other stream flowing through a bypass duct. The gas stream flowing over liquid anesthetic flows through a temperature responsive valve means, the latter being actuated by a temperature sensitive bimetallic strip which is in direct contact with the vapor saturated air stream which is relatively cool due to the vaporization of the liquid anesthetic. The valve means so situated in the vapor stream essentially does not include any moving parts. Such valve means is formed by the spaced mounting of a planar valve element on a planar surface having vapor opening therein or an inlet passage.

Abstract: A throttle body assembly comprises a throttle body having an induction passage therein with a pair of rotatively coupled, parallel shafts extending across the induction passage. A pair of blades are affixed to each shaft with each blade comprising a main blade section for selectively restricting the induction passage in accordance with shaft rotation and an auxiliary blade section which presents a curved confronting surface to an adjacent wall portion of the induction passage so as to preclude intrusion of any appreciable amount of induction air between each blade and the corresponding wall portion over the operative rotational range of the shafts.

Abstract: An adaptor for a conventional type carburetor having a main support plate provided with central apertures therein, a slotted throttle plate movable longitudinally in the apertures, support and retaining plates on either side of said movable throttle plate slidable therebetween, and pivotable lever means attachable to the conventional throttle linkage for actuation of the slotted throttle plate to increase or decrease the flow of partially atomized gasoline and air through the slotted apertures of the aforementioned plates and to further break down and additionally atomize the gasoline particles due to the action of the cutting edges. This adaptor may be used with conventional carburetors and/or used as the primary throttle control for new carburetion systems.

Abstract: A system for supplying fuel to an internal combustion engine for optimum efficiency in engine operation and fuel economy and for minimum objectionable exhaust emissions. The system pertains particularly to an internal combustion engine in an automobile, truck, or the like. Fuel is heated prior to introduction thereof into the engine. Fuel is introduced to the engine in accordance with manifold pressures.

Abstract: An internal combustion engine has a main combustion chamber and an auxiliary combustion chamber which is connected to the main combustion chamber by way of a torch nozzle. A main carburetor communicates with the main combustion chamber to supply a large amount of lean combustible mixture, and an auxiliary carburetor communicates with the auxiliary combustion chamber to supply a small amount of rich combustible mixture. A rotary valve is disposed within the auxiliary carburetor downstream of its venturi section. The cross sectional area of an opening of the rotary valve is smaller than that of the venturi section.

Abstract: A mount for a carburetor which reduces the transfer of heat and vibration from an engine which includes an elastic support ring interposed, with a load carrying capacity, between the mounting flanges of the engine and the carburetor and a neck portion of the carburetor to eliminate metal-to-metal contact. The neck portion has an axial length sufficient to receive the carburetor mounting flange while the elastic support ring is assembled.

Abstract: Apparatus for preparing carbonated beverages has a main body providing a receptacle for a CO.sub.2 cylinder and a hingedly mounted aerating head carrying a tube connected with the cylinder through a manually operated valve and a cylindrical shield coaxial with the tube for receiving a bottle containing the liquid to be carbonated. The shield is accessible for insertion or removal of a bottle only when swung away from the main body. In the operative position of the aerating head, a platform on the main body can be raised by a lever-operated cam to press the neck of the received bottle against a resilient nozzle on the aerating head. A safety valve linked with the cam releases excess pressure in the charged bottle when the platform is lowered.

Abstract: The carburetor has a fast idle cam that is rotated by a temperature responsive element to progressively present steps of differing radial extent into the path of closing movement of the carburetor throttle plate, during cold weather operation, to maintain the throttle plates open beyond the normal idle speed position. As the temperature increases, the cam is rotated to decrease the throttle plate opening in proportion. During cold starts, an insert is positioned against the cam to open the throttle plates wider, regardless of the rotative position of the cam, for more air and fuel flow to start. Once started, the insert is removed by a vacuum servo, and the throttle plates permitted to assume the open position dictated by the cam step engaged. SPThis is a continuation of application Ser. No. 424,134, filed Dec. 12, 1973, now abandoned.