Abstract: This catch, which may be used either with rapid connections which can be uncoupled, and those which can not, is of the type which consists of an annular part (2), of spring steel, having teeth (4), directed radially inward, and of which the free edges (4a) are inscribed in a circle (5) of diameter (D.sub.1), greater than the outer diameter (D.sub.2) of the tube (6) for which the rapid connection equipped with this catch is intended. Each tooth (4) has a free edge (4a) in a circle arc of radius (R) less than that of the circle (5) in which this free edge (4a) is inscribed.

Abstract: The invention comprises a metal push-in tube fitting and a release tool. The metal tube fitting includes a body with a tube-receiving cavity in one end. A tube support forms the inside of the cavity and supports the tube against inward movement. A gripper ring having a radially inner gripping edge is disposed in the cavity and grips a tube inserted in the cavity through the ring. A retainer holds the gripper ring in the body of the tube fitting. A release tool is provided for releasing a tube which is held by the gripper ring of the fitting. The release tool has a thin, cylindrical section portion which can be received about a tube held in the fitting and then inserted in the fitting to raise the gripper and release the tube.

Abstract: The retractable stop associated with the valve (14) of the female element (2) consists of a spring (26) in catch (hook) form (26), of which the branches (26a) are engaged on the stem (14a) of the valve (14), so as to grip it constantly between two zones, diametrically opposite each other, while the sliding ring (24) has, at its end turned toward the collar (20), a cylindrical segment (24b) of diameter (D3) greater than that of the first section (14'a) of the stem (14a) of the valve (14), and between its end (24a), designed to come in contact with the shoulder (23) of the stem (14a) and the said cylindrical segment (24b), a truncated cone segment (24c), of which the small diameter is equal to the diameter (D1) of the first section (14'a) of the stem (14a), and which is designed to be situated between the branches (26a) of the catch (26) when the ring (24) is supported against the shoulder (23) of the stem (14a) of the valve (14), and this latter is in normal opening position.

Abstract: A light source providing a diffuse, uniform intensity of light over a length of the device. A prism of material having a relatively high index of refraction has a shape to capture light emitted longitudinally therein by light emitting diodes molded into the ends thereof. A window, such as a frosted surface of the prism, allows the light to be emitted from the prism. The window has a shape which tapers toward the light emitting diodes so that a linearly uniform amount or intensity of light is emitted along the length of the window.

Abstract: A carriage and housing for a position sensing device of the type having a carriage for carrying a reader for reading the position of the carriage with respect to the housing along a position line of the device. The improvements include a carriage with five bearings to restrict the carriage to motion parallel to the position line. The carriage and housing are isolated in a frame of reference by the housing having first and second planar reference surfaces on which the bearings ride and first and second springs which urge the carriage toward the first and second reference surfaces by contact with first and second spring supports which form part of the housing and extend parallel to the first and second reference surfaces and the position line. A yoke moves the carriage but is isolated from the carriage by a five degree of freedom of movement connection. The yoke has arms with facing bearings which contact but float on planar bearing surfaces on the carriage which extend perpendicular to the position line.

Abstract: The invention relates to a device for measuring pressures in a hydraulic or pneumatic system comprising preferably a piezoresistive pressure measuring cell disposed within the pressure housing in a pressure chamber filled with a separating fluid and separated from the medium to be measured by means of a diaphragm. In the pressure housing on the pressure input side before the pressure measuring cell or the sensor element (10.0), at least one pressure attenuation element (3.0;4.0;5.0) transferring the pressure is arranged before and/or behind the separating diaphragm (2.0). In an embodiment, a pressure attenuation element (3.0 or 5.0, resp.) is arranged on the pressure input side behind the diaphragm being provided with an elastic protective layer (2.1) turned toward the pressure attenuation element. The pressure attenuation element (3.0;4.0;5.0) consists of a microporous sintered metal, e.g.

Abstract: An improved, high-pressure fluid draining, internal gear hydraulic device of the type having a rotatable valve plate which selectively communicates inlet and outlet ports of a commutator with opening and closing fluid chambers between internal and external gear. The valve plate has radially extending drain ports which drain high pressure fluid from the area inside the valve plate to a check valve system outside the valve plate. This check valve system can drain to a low pressure fluid port of the device such as the inlet or outlet of the pump.

Abstract: A fitting for joining a tube to a threaded body member includes a nut having a conical camming surface and a collapsible sleeve with a mating conical surface and internal annular serrations for gripping the tube. A seal in the face of the body member seals against a front transverse shoulder of the sleeve while an internal groove in the sleeve houses an o-ring for sealing against the tube. The rear wall of the groove is in a dogleg configuration and is engaged with the rear end of the sleeve to be collapsed therewith into close engagement and embedment with the tube to prevent seal extrusion at high pressures. The sleeve includes stop shoulders thereon to limit threaded engagement of the nut and thus the collapse of the sleeve and is disclosed in one and two piece embodiments.

Abstract: This coupler with valves is of the type which includes an outer tubular body (2), equipped, at one end (2") with means (3) of rigid connection with a source of fluid under pressure, at the other end of which is made the female fitting (7') of the coupler, this female fitting (7'), which contains the valve (14), situated on the feed circuit side, being arranged to permit the engagement and the locking, in its bore, of the male fitting (11) of this coupler, which, in turn, contains the valve (13), situated on the side of use of the fluid under pressure.

Abstract: An improved positive displacement rotary pump, such as a gerotor pump, having an axial housing inlet opening with an outer radial edge extending inside the radial outer extent of the rotating fluid in the pump such that at design speed, the fluid pressure due to rotation of the fluid, does not cause fluid to move back into the inlet. Otherwise, the inlet is maximally open to allow maximum filling efficiency.

Abstract: An explosion suppression system wherein a photodetector (10), a capacitor circuit (12) and a detonator (14) provide an initiation signal to a dispersion tube (18). The dispersion tube includes a casing (20) having orifices (26), an inner tube (28) where the explosion suppressant is stored, and a propellant cord (34) that is located between the storage casing and the inner tube. In response to the initiation signal, the explosion suppressant is expelled from the orifices (26) and through nozzles (27) to form a controlled spray pattern to quench initial flame in a fuel tank before there is time for a damaging pressure rise.

Abstract: A reinforced internal gear machine of the type having variable displacement fluid chambers formed between an orbiting outer gear and a rotating inner gear. The orbiting outer gear is retained in its orbiting motion by a plurality of roller dowells closely fitting in a locating ring disposed radially outside the outer gear and extending therefrom to be received in arcuate recesses on the radial outside of the outer gear as it orbits. The locating ring is connected to an end piece of internal gear machine along a plane of torsional stress and this connection is reinforced by this invention. The reinforcement is made by the end piece having recesses disposed coaxially with the roller dowells and the roller dowells extending closely within these recesses from the cover. The roller dowells thus extend across the plane of torsional stress for reinforcement.

Abstract: A brake element and system where the brake friction surface of the element is a refractory metal carbide. The brake element has a molded carbon structure for mechanical and structural strength and the friction surface or surfaces thereon are converted to refractory metal carbide. The refractory metal carbide is preferably silicon carbide and the depth of conversion is preferably from 0.015 inches to 0.15 inches.

Abstract: An improved rotary valve plate and internal gear machine wherein an imbalance across the rotary valve plate due to high pressure fluid on the commutator side of the valve plate being opposite low pressure fluid in the variable displacement chambers on the gear side of the valve plate is balanced by a recess which extends around the periphery of the valve plate and receives fluid from the gear side of the valve plate to urge the valve plate toward the commutator. Preferably, the internal gear machine is of a type with an orbiting outer rotor orbiting in an annulus with intermediate pressure fluid in the annulus. The recess on the gear side of the valve plate is disposed to receive intermediate pressure fluid from the annulus.

Abstract: An engagement coupling for a starter drive, in which driving and driven jaws (20, 21) engage each other through face gears, is provided with a blocking mechanism (51). The blocking mechanism (51) is located in the driven jaw (21) and consists of flyweights (57) and a blocking rod (55). The flyweights (57) cause the rod (55) to extend into a blocking position against a pinion assembly (11) when a predetermined engine speed has been reached and the jaws (20, 21) have been separated. Once the rod (55) has been extended and the rotational speed of the driven jaw (21)is maintained, the rod (55) blocks the driving jaw (20) from destructively engaging the driven jaw (21). The blocking condition remains effective until such time as the driven (21) jaw has slowed down, e.g. after the engine has been shut down.

Abstract: A mechanically rigid joint is formed between two different metals by completing the joint in a forging operation. A part (14) made of one metal is placed in a die form (20) and is maintained at a temperature below that required for forging. A billet (23) made of the material from which the second part (13) is to be formed is coated with boron nitride at an interface (16). The boron nitride is thermally treated while on the billet (23) by heating the coated billet (23) in a non-oxidizing atmosphere. The billet (23) may then be heated and placed in the die (20) so that the billet (23) can be formed into the second part (13), engaging the first part (14) at an interface (16) defining the joint. The joint (16) is stabilized by providing suitable coatings for the materials, particularly at the interface (16).

Abstract: A pneumatic circuit pressure control device including an electronic comparator for comparing a transducer generated pressure signal from the pneumatic circuit and a desired pressure signal from a desired pressure input generator. The comparison circuit selectively actuates a solenoid-actuated valve which controls the pressure in the pneumatic circuit. Preferably, the solenoid of the solenoid-actuated valve produces an electromagnetic field for electromagnetic induction of a circuit which oscillates the solenoid-actuated valve to produce a variable orifice-like effect when small changes in pressure are demanded by the comparator circuit.

Abstract: A dual position chuck and turning machine method allow automatic shifting of a workpiece from a first to a second turning axis by actuation of a draw bar through the spindle of the turning machine. A linkage in the chuck drives a movable jaw assembly having peripheral fixed keys thereon in an arcuate keyway responsive to the draw bar movement. The arcuate keyway allows moving the workpiece to second axes which are not merely rotations of the jaw assembly.

Abstract: An inductor nozzle assembly for use with an air blast sprayer of the type having a tank holding waterborne pesticides, delivery lines connected to the tank and an air blast fan mounted in close proximity to the delivery lines, includes a spray nozzle mounted to the delivery lines which is disposed in the hollow interior of a conical-shaped housing mounted thereto. The housing is formed with an enlarged entrance opening, and a reduced diameter discharge opening which mounts an inductor ring charged with high electrical potential. A high velocity stream of air produced by the air blast fan is directed into the housing through its entrance opening where the air stream is accelerated by the conical shape of the housing toward its discharge opening.

Abstract: A hydraulic piston-valve-type control valve that includes a housing in which a control piston is longitudinally displaceably disposed. By means of annular recesses, and hence control surfaces formed on piston collars about a piston core, the control piston regulates at least one fluid stream that flows through the housing. This regulation is effected by coupling the recesses between the piston collars, while appropriately longitudinally shifting the control piston, with annular control chambers on the housing side. The collars of the control piston are provided with control edges that progressively release the control chambers. The problem with heretofore known valves was that an undesired sudden increase in the flow forces could not be avoided. In addition, the manufacture of the corresponding configurations of the control edges was complicated and expensive.