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| Number | Title | Issue Date |
| 4066721 | Throttle body having a novel throttle blade 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 ... | 01/03/1978 |
| 4055326 | Needle valve member for a control device and method of making the same A needle valve member for a control device having a passage provided with a valve seat for fuel flow therethrough, the needle valve member being adapted to cooperate with the valve seat for controlling the fuel flow therethrough while providing a minimum ... | 10/25/1977 |
| 4047695 | Adjustable choke A low pressure drop adjustable choke has a variably adjustable tapered annular port for metering flow of a fluid. The annular port is defined by a tapered plug extending through a mating, correspondingly tapered seat. The area of the port is selectively v... | 09/13/1977 |
| 4044992 | High energy loss fluid flow control device A high energy loss fluid flow control device comprising a body defining a chamber in communication with a fluid inlet passage and fluid outlet passage at one end of the chamber; a hollow tubular member mounted in said chamber open at one end adjacent said... | 08/30/1977 |
| 4044991 | High energy loss fluid flow control device A high energy loss fluid flow control device comprises a housing having an annular wall with an inlet adjacent one end and an outlet adjacent the other end. The housing wall includes an inside surface formed with a continuous helical land and groove defin... | 08/30/1977 |
| 4044990 | Flexible tubular members and valves incorporating such members A flexible tubular member for use in a pinch valve and through which fluid medium will flow in operation of the valve said member having in its bore diametrically spaced shoulders over which the immediately adjacent portions of the tube wrap as the tube i... | 08/30/1977 |
| 4037625 | Sliding tube fluidic controller A controller, wherein the throttling range may be changed without affecting the calibration point, comprises a restrictive passage between an outer tube and an inner tube, the outer tube having one end connected to a source of pressure and the other end c... | 07/26/1977 |
| 4024889 | Dynamic control valve for modifying fluid flow A fluid flow control valve comprising a substantially cylinder-shaped body for insertion in a tube or pipe, said body having an annular recess therearound for the reception of a resilient O-ring to effect a seal between said body and the inner surface of ... | 05/24/1977 |
| 4023595 | Flowrate control device A flowrate control device comprising a housing, a housing inlet for coupling to a liquid flow supply, a housing outlet, a first housing wall portion defining a throughflow path communicating at the ends thereof respectively with the inlet and the outlet, ... | 05/17/1977 |
| 4022113 | Flow control valve A flow control valve comprises a body having a longitudinal bore therethrough at one end terminating in a first port and intermediate its ends a second port which communicates with said bore and is adapted for a connection to a cylinder port. The body has... | 05/10/1977 |
| 4011894 | Fluid flow control An economical, accurate and efficient constant rate flow control operable at low pressure, high flow rates and high temperature comprises a tubular conduit fitting having a flow restrictor therein with a metering pin means movably mounted adjacent to the ... | 03/15/1977 |
| 4011893 | Flow control valve A flow control valve having a valve chamber which is adapted to receive fluid under pressure and which comprises a valve member having a surface with a groove therein and an outlet passage terminating at one end in a port in the groove. A resilient elemen... | 03/15/1977 |
| 4009826 | Variable value constant volume flow device An improved constant volume flow device wherein the device includes a body defining a flow passage with an inlet portion and an outlet portion. The body is adapted to conduct a flow of fluid through the passage wherein such flow has a varying pressure at ... | 03/01/1977 |
| 4004609 | Material transmitting element for contacting streaming media of different phases or the same phase A fluid transmitting element, particularly for increasing vapor-liquid contact, comprises a continuously open element which is resiliently deformable to open still farther under the pressure of a fluid stream. The element is a plate or tray which comprise... | 01/25/1977 |
| 4003405 | Apparatus for regulating the flow rate of a fluid An apparatus for regulating the flow rate of a fluid, comprising a casing having an annular or cone-shaped fluid passage, for radial flow (inwardly or outwardly) between an inlet and outlet which are spaced radially and form unobstructed flow paths to the... | 01/18/1977 |
| 4002295 | Self-regulating sprinkler A pressure-regulated water sprinkler comprises a sprinkler head carrying a nozzle at one end through which the water discharges in the form of a jet. The sprinkler head includes a housing defining an internal chamber communicating at one end with the nozz... | 01/11/1977 |
| 4000857 | Flow control aerator A flow control device that maintains a constant flow rate and is arranged to produce a regulated, aerated stream on the discharge side.... | 01/04/1977 |
| 3999522 | Intake control system for internal combustion engine An intake system for an internal combustion engine has been developed to include a translationally movable throttle to cause cross-sectional passage of the intake manifold of the engine cylinders to vary. This throttle utilizes a substantially rigid plate... | 12/28/1976 |
| 3998427 | Self-cleaning drip irrigation valve A flow control valve for use with fluid under pressure comprising a valve body having a valve chamber and a resilient grid in the valve chamber. The valve body includes a control member mounted for rotation and having an interior surface partially definin... | 12/21/1976 |
| 3998244 | Drip irrigation valve with helical flow path A drip irrigation valve comprising an outer member having a passageway and an inner member mounted in the passageway for axial movement. An axially and circumferentially extending rib is provided on a first of the members and cooperates with a confronting... | 12/21/1976 |
| 3997037 | Adjustable shock absorber A shock absorber having passageways through which fluid is metered from a primary chamber upon application of an impact force to a piston assembly slidable in the chamber, and an adjustable flow control member for regulating the flow of fluid through the ... | 12/14/1976 |
| 3994153 | Variable flow resistance calibrator The calibrator device is used for calibrating the flow indicator (rotometer) of an air pollution sampling instrument known as a high volume air sampler which determines the concentration of the total suspended particulate in the ambient atmosphere. The ca... | 11/30/1976 |
| 3993248 | Fluid flow regulator A non-clogging regulator controls the rate of fluid flow from within a fluid conveying conduit regardless of pressure variations within the conduit and irrespective of the presence of particulate matter within the fluid.... | 11/23/1976 |
| 3991743 | Conception-preventing and variable filtering or flow control devices and methods Devices and methods for preventing conception as well as for general use in variable filtering. For preventing conception at least temporarily the devices and methods provide a selective flow for fluid in a vas deferens with sperm being acted upon at the ... | 11/16/1976 |
| 3990871 | Dust collecting apparatus with gas flow regulator A gas flow regulator disposed within a gas flow path and having integral baffling means thereon to deflect such a gas flow transversely of the direction of the gas flow in a manner to provide a uniform gas distribution where there is a change in cross-sec... | 11/09/1976 |
| 3990548 | Adjustable hydraulic dashpot A hydraulic dashpot having a pressure tube with a port defining a metering orifice through which fluid is metered upon application of impact forces to a piston assembly slidable in the pressure tube, and wherein the pressure tube is rotatable for adjustin... | 11/09/1976 |
| 3976542 | Fuel element having variable orifice A fuel element for a gas-cooled nuclear reactor having a housing surrounding a plurality of fuel pins through which coolant flows over the fuel pins. The housing has a portion of varying cross section and a plug disposed within the housing adjacent the po... | 08/24/1976 |
| 3971399 | Arrangements for preventing or minimizing over-pressures in gas pipes This invention relates to arrangements for the prevention or minimization of over-pressures due to sudden interruptions in the flow of a compressible fluid which are caused by an obturator such as an electrical valve along a main gas pipe and more particu... | 07/27/1976 |
| 3970251 | Pipe insertable emitter for irrigation systems An emitter insertable through the wall of a water pipe having a pair of striated skirts depending from opposed edges of the emitter outlet for irrigating soil at a constant rate of water flow despite variations in water pressure within the water pipe.... | 07/20/1976 |
| 3958605 | Automatic controlling device for maintaining a constant rate of air flow in air-conditioning equipment The present invention relates to automatic control devices generally for the purpose, in the terminal equipment of an air-conditioning system which blows conditioned air, flowing thereinto through the duct from the central air conditioner, out into the ro... | 05/25/1976 |
| 3958604 | Control valve A hydraulic position servo system includes a primary control valve moved by a mechanical input which embodies a pintle laterally shiftable in a cylinder to differentially throttle two orifices to establish a variable control pressure.... | 05/25/1976 |
| 3957177 | Metering applicator apparatus with pressure regulating bypass A metering applicator apparatus has an accurately controlled fluid or compound discharge which discharge is the difference between the discharge of a constant displacement metering pump and the discharge of a pressure regulating device. The constant displ... | 05/18/1976 |
| 3952776 | Fluid flow device A combustible mixture of air and minute fuel droplets is produced for supply to the cylinders of an internal combustion engine. This mixture is formed by accurately controlling both the atomization of fuel and the mass flow rate of air over substantially ... | 04/27/1976 |
| 3946760 | Hydraulic modulator valve Disclosed herein is a hydraulic modulator valve for a control system of a hydraulically operated mechanism having a casing with a bore therein, a stepped spool axially and slidably engaged within the bore to form an annular fluid throttle passage against ... | 03/30/1976 |
| 3939868 | Adjustable air volume regulator for air-conditioning systems An air volume regulator adapted for use in an air distribution system for maintaining a constant flow of air therethrough regardless of variations in pressure of the air being supplied to the regulator is provided with adjustment means to permit adjusting... | 02/24/1976 |
