Abstract: A self-contained tank filling fitting having dual operation wherein the fitting may be used with a gravity fluid supply system or a pressurized fluid supply system. The fitting includes an elbow having an upper end closed by a removable cap, and a pressurized filling port located in the bend of the elbow aligns with a tank port to reduce resistance to pressurized fluid filling. An automatic differential pressure valve controlled by a float operated vent automatically closes the pressurized filling port upon the tank being filled.

Abstract: The invention pertains to the attachment of a wrenching nut to a metal conduit wherein torque forces can be applied to the conduit through the nut. An annular nut member is located upon a conduit and the conduit is radially deformed to force the conduit material into engagement with keying surfaces defined upon the nut. Conduit deformation occurs on both sides of the nut for axial positioning thereof, as well as establishing a torque transmitting relationship between the nut and conduit.

Abstract: A releasable self-resetting cargo hook for helicopters and other aircraft for supporting suspended loads. The cargo hook apparatus includes a pivotally supported load arm maintained in its load supporting condition by a pivotally mounted latch arm whose position, in turn, is controlled by a pivotally mounted latch. The position of the latch is determined by a pivotally mounted lock arm lever whose normal position is determined by a stop pin and which is operated by a release mechanism. The interconnection between the latch and lock arm lever is through a cam slot defined on the latch receiving a lock arm lever follower, and the cam slot-follower relationship prevents impact forces imposed on the cargo hook structure from inadvertently producing lock arm lever rotation and latch movement.

Abstract: The invention pertains to a fueling nozzle vapor collecting apparatus attachable to a standard fuel dispensing nozzle spout. The apparatus includes a rigid plate connected to the spout having an annular resilient cup-shaped hood affixed to the plate periphery having a foam cushion defined on its outer edge for sealingly engaging the surface surrounding a fuel tank inlet. A collecting hose for the vapor is attached to a port defined in the plate for venting the vapor to a location remote from the nozzle, and a sight glass is adjustably positionable within a seal located in the plate providing visual observance of the fuel level.

Abstract: An optical liquid level sensor utilizing both a prismatic member for the light refraction when immersed in and surrounded by a liquid and its effects for the indication of the presence and absence, selectively, of the liquid level. This level indication is provided in the subject case through a target plate bearing letter codes and legends, respectively, which are recognized and standardized in this trade and which become visible at the onset and for the duration of an acceptable liquid level situation; otherwise; a messageless image appears in the sensor. The illuminated target plate allows also for the observation of the color and any color change of the liquid and the taking of remedial actions.

Abstract: A device using intentionally introduced centrifugal force to direct particles suspended in a liquid to peripherally arranged contact members and to detain them there through the static pressure caused by the peripherally moving liquid.The device separates the ferrous, magnetizable, from the nonferrous, not magnetizable, particles by providing a magnetic capturing unit having a diameter smaller than that of the aforementioned contact member arrangement, so that ferrous particles will be retained by magnetism and so indicated, while nonferrous ones will be detained by the radially more outwardly located contact members and indicated accordingly. Individual indications of, especially nonferrous particle accumulations, are provided for at least two particle magnitude ranges.

Abstract: A coupling fitting consisting of male and female parts wherein connection is achieved merely by axially inserting the male into the female part. Latching is produced by a plurality of resilient fingers mounted on the female part engaging with an annular shoulder formed on the male part, and release of the fingers is achieved by an axially displaceable sleeve permanently mounted on the male part displaceable to a release position engaging the fingers and removing the fingers from the shoulder permitting the male part to be removed from the female part. The release sleeve may be of a configuration to discourage tampering and uncoupling, or may include a knob to facilitate manual actuation.

Abstract: A ball valve connector of the frangible crashworthy type wherein two fluid flow connector body halves are interconnected by fracturable elements. Each body half includes a ball valve within a flow passage pivotally mounted on diametrically located pins. The pivot pins and valves are capable of displacement in the axial direction of fluid flow to compensate for manufacturing tolerances and provide maximum sealing characteristics. Each valve is rotatable 90.degree. between open and closed positions, and a stop projection defined on each valve cooperates with a spring biased stop ring providing positive retention of the valve in the closed position.

Abstract: A fueling nozzle for closed circuit fuel systems comprising a body having a passage including inlet and outlet ends. A reciprocal plunger within the passage serves to open the fuel tank inlet and cooperates with a valve to close the nozzle when not in use. A reciprocal differential pressure actuated pressure regulating sleeve within the passage is positioned relative to a valve seat in accord with the nozzle fluid pressure and the nozzle passage is exposed only to regulated pressure. An indicator mounted on the body senses the position of the pressure regulator sleeve to give a visual indication of the position and condition of the regulator sleeve.

Abstract: A system for repairing pipeline, such as underground fuel, gas or water pipeline systems which have been damaged by explosives, wherein the ruptured sections have been misaligned. Quick-connect fittings are attached to the misaligned pipe ends after trimming and a bridging conduit system is interposed between the fittings having adjustable portions for accommodating the misalignment. Rotative angular sections provide universal adjustment while retaining the fluid-tight integrity of the apparatus.

Abstract: A conduit fitting of the quick connect push-in type wherein a tubular member having a radial shoulder is inserted into an annular body sealingly receiving the tube. A tube retainer employs a plurality of resilient fingers to maintain the tube within the body, while other resilient fingers position and maintain the retainer within the body and a third set of fingers engage and retain a seal in location. The retainer is stamped from flat spring steel stock.

Abstract: A rotary joint or union characterized by its ease of assembly, disassembly and maintenance wherein a mounted internal condiut supports a rotary anti-friction bearing housing to which a seal housing is removably attached by bolts. A conduit port defined in the seal housing communicates with the interior of the conduit. A bearing retainer mounted upon the end of the conduit includes a seal having a radial face engaging the radial face of a seal mounted on the seal housing in a self-aligning manner. A compression spring maintains engagement of the seal faces through a seal assembly, and the seal housing seal is mounted within a retainer loosely keyed to the seal housing to facilitate self-alignment.

Abstract: An annular fluid seal for pressurized fluid systems particularly for use with a coupling having interconnectable self-sealing male and female parts. The two-part seal is mounted within an annular gland recess within the male part and includes a relatively rigid primary annular body of synthetic plastic material having an interference fit with the male coupling part poppet valve. The outer diameter of the seal body includes an annular recess receiving an elastomeric O-ring, and the mass of the primary seal body provides maximum strength within the confines of the gland recess to resist deformation due to pressurized fluid to prevent blowout of the seal from its recess.

Abstract: A frangible fluid fitting of the crash-worthy type utilizing a detent holding a self-closing valve in the open position. The detent engages a plurality of balls confined in a recess circumscribing the fitting attachment surface whereby only partial fracture of the fitting in any direction causes the self-sealing valve to close. One embodiment of the fitting permits both gravity and pressurized tank filling with automatic valve closing when the tank is full during pressurized filling.

Abstract: A convertible fitting capable of selectively achieving a brazed, soldered or flared connection to a conduit. The fitting includes an interior passage and an exterior thread. The passage receives smooth wall conduit, such as tubing, for a braze or soldered connection, and an insert receivable within the fitting includes a conduit flare engaging surface and a seal cooperable with the fitting wherein the tightening of a conventional flare nut simultaneously seals the conduit flare to the insert and the insert to the fitting.

Abstract: A fitting for rigid conduit including an annular body receiving the conduit and including a seal assembly utilizing an elastomeric seal axially compressed and radially expanded to engage the conduit by a compression ring. A ring retainer maintains the seal assembly in a preliminary position during shipping and assembly of the coupling with the conduit, and the ring retainer includes a second position retaining the seal in a sealed expanded condition. The fitting also includes a conduit positioning abutment capable of accommodating conduit displacement during sealing.

Abstract: An improved rotary joint structure for transmitting fluid into and removing condensate from a rotating device, including a stationary housing into which a rotatable sleeve extends. A siphon pipe is positioned concentrically within the rotatable sleeve. At the free end of the rotatable sleeve there is positioned a fixed combination seal and thrust bearing which carries the thrust load of the sleeve. A spherical surface on the fixed bearing engages a corresponding surface on a sleeve flange affixed to the rotatable sleeve to maintain the sleeve in position as it rotates. A second seal unit is provided on the sleeve at the opposite end of the housing, and a compression spring encircles the rotatable sleeve between the two seal units to urge them into engagement with their respective sealing surface. Both the combination seal and thrust bearing unit and the second seal unit can be replaced without removing and disassembling the joint.

Abstract: The invention pertains to apparatus for tensioning chains as may be used to tie down and position cargo. A pair of elongated members each have an outer end on which a tension transmitting fitting is mounted, and at their inner ends the members are telescopingly interrelated and adjustably interconnected through a resilient impact cushion placed under compression by tension forces transmitted between the members. A non-compressible sleeve prevents overcompression of the impact cushion and the apparatus includes adjustable elements for precompressing the cushion.

Abstract: The invention pertains to the attachment of a wrenching nut to a metal conduit wherein torque forces can be applied to the conduit through the nut. An annular nut member is located upon a conduit and the conduit is radially deformed to force the conduit material into engagement with keying surfaces defined upon the nut. Conduit deformation occurs on both sides of the nut for axial positioning thereof, as well as establishing a torque transmitting relationship between the nut and conduit.

Abstract: A manually operated, power-assisted, self-sealing fluid coupling which utilizes pressurized fluid to interconnect the coupling parts. A sleeve within one part selectively locks to the other part and utilizes an expansible chamber motor to draw the other part into the one coupling part, and a second expansible chamber motor associated with the sleeve neutralizes the coupling force of the first motor during disconnection and manual operation of the sleeve through a valve component disconnects the coupling parts.