Abstract: An accumulator device comprising a pressure vessel having a replaceable bladder assembly adapted to be inserted into position within the vessel through a bore defining the gas charging port. The device is characterized by the provision of a bladder assembly having a stem molded thereto and adapted to project through the bore at the gas charging end of the vessel. A locking ring having larger diameter than the bore is rendered insertible endwise into the interior of the vessel as a result of the provision of reduced side portions. A retainer plate is provided which is insertible over the stem from the exterior of the vessel, the retaining plate including aligned portions projecting downwardly into the bore and filling the space between the reduced side or clearance portions of the ring and the bore to prevent extrusion of the bladder through the bore.

Abstract: The present invention is directed to a universal ceiling lighting fixture and more particularly is directed to a lighting fixture adapted to be mounted above a ceiling made of gypsum board, acoustical tile or the like, the fixture being characterized by its ability to support reflectors of a variety of diameters. More particularly, the fixture includes novel mounting means which extend over the reflector receiving aperture, the mounting means being adjustable in accordance with the diameter of the reflector intended to be used with the fixture.

Abstract: A dispenser safety attachment for liquid additives and particularly for periodically dispensing increments of liquid additive which are corrosive, carcinogenic or otherwise possess qualities which suggest that contact therewith be avoided. The device is characterized by the provision of a receptacle adapted to be secured to a tank or like receiver or conduit for materials to be treated and a container adapted to be mounted in the receptacle, the container including a valve mechanism, known per se, and subject to opening and closing by relative rotation of the container and a spout. The receptacle and container interact in such manner that increments of the liquid in the container may be dispensed by relatively rotating the container and receptacle which has been mounted on the tank by torsional forces applied to the container.

Abstract: A pulsation dampener device particularly adapted for the efficient dampening of pulsations over a wide frequency range. The device is characterized by the ability to operate over a high temperature range and be operable when contacted by corrosive and like aggressive fluids within which pulses are generated. The device includes a pressure vessel which is cylindrical in section, a piston member shiftable axially within the vessel and dividing the same into a gas chamber and a fluid chamber, the piston incorporating a deflectible diaphragm disposed within a permeable cage whereby dampening may be effected by either or both of a bodily movement of the piston within the vessel or by deflecting movements of the diaphragms within the cage.

Abstract: The present invention is directed to a hydraulic accumulator device which may be built at low cost and which includes an elastomeric bladder member and a button or valve component adapted to seat on the oil port when pressures in the gas chamber exceed the pressure in the hydraulic line and to unseat when the pressure conditions are reversed. The device includes a button carried by the bladder positioned to seat on the oil port and is characterized by the button, bladder, and oil port having certain critical dimensional inter-relationships which greatly reduce the possibility of damage to the bladder and consequent failure of the accumulator.

Abstract: This invention relates to an improved pressure pulse dampener device comprising a pressure vessel having a movable partition therein dividing the vessel into two chambers, each chamber having a port in communication therewith, namely, a gas port for charging one of said chambers with gas under pressure and an oil port. The oil port is rigidly secured to a hollow fitting having an inlet and an outlet port, with means interposed between the ports for diverting the flow toward the oil port, the device being characterized by the provision within the fitting of an expansion chamber having a progressively increased cross section area juxtaposed to a baffle interposed between the inlet and outlet ports, the chamber providing improved dampening characteristics.

Abstract: The present invention is directed to a monolithic capacitor adapted to be secured to a substrate by reflow soldering methods, characterized by the configuration of the capacitor causing the solder to form a compliant mechanical bond between the capacitor terminations and underlying substrate, whereby the likelihood of capacitor failure due to thermal or mechanical shock is greatly reduced. The invention further relates to a method of making a capacitor of the type described.

Abstract: The present invention relates to an apparatus for dampening pulses in a hydraulic system and is characterized by the provision of a hydraulic accumulator device having disposed in the hydraulic flow path a baffle member shiftable from the exterior of the dampener in a direction normal to the flow path and toward and away from the oil port of the accumulator whereby the device may be critically adjusted or tuned to deal effectively with pulses of a variety of frequencies and amplitudes.

Abstract: The present invention is directed to a low cost accumulator device having a pressure vessel formed of two components, namely, a shell and a cap, the seal between the shell and cap being effected in the course of mounting the shell to the cap by compression of a thickened rim portion of the bladder between the shell and cap components, the apparatus being so constructed and arranged that optimum compression of the rim portion is automatically achieved, thereby avoiding under-compression with possible resultant leaks or over-compression with possible damage to the bladder.

Abstract: The present invention is directed to an improved fail-safe actuator and hydraulic system incorporating the same. The actuator includes energy storage means in the form of a spring adapted to set a control device in a predetermined condition, illustratively in the closed condition, responsive to a failure situation, illustratively, a power failure. The actuator includes a coupling which permits normal operation of the control device without cycling the spring energy storage means, thus increasing the life of the spring and eliminating energy wastage inherent in cocking the spring during each operative cycle.

Abstract: The present invention is directed to an accumulator device of the type which includes a pressure vessel having an oil port at one end, a bladder dividing the vessel into two chambers, a removable cap member at the other end retaining the bladder in position, the cap member including a gas charging valve assembly. The apparatus is characterized by a safety feature whereby the cap member may not be removed without first having removed the gas charging valve assembly, whereby it is assured that the gas pressure within the gas chamber will have previously been vented.

Abstract: The present invention relates to the method of manufacturing a pressure vessel for use as a hydraulic accumulator, pulse dampener or like apparatus employing an elastomeric bladder member, from a cylindrical member which includes the steps of deforming a first end of the member to provide an essentially hemispherical portion having an oil port, installing the elastomeric bladder assembly within said cylindrical member while the other end of said member remains in its essentially cylindrical configuration, and thereafter inwardly deforming the second end of said member while heating the same, said last mentioned heating and deforming steps being carried out while injecting through the last mentioned end a stream of cooling fluid which follows the internal wall portions of the bladder to minimize the possibility of heat damage to the bladder.

Abstract: A chain guide for a stenter comprises head pieces and end pieces, each carrying a respective return wheel for the associated chain, each head piece being pivotally connected to an associated guide rail so that it can be swung out about a vertical axis and each end piece being displaceable outwardly while remaining parallel to the guide rails. The arrangement allows vertical chain reversal while still allowing clips to be carried by the chain and to engage and disengage a web satisfactorily.

Abstract: The present invention is directed to a dependable, low cost, low pressure accumulator characterized by the provision of a bladder support subassembly secured to an end cap member by an annular weld line, the connection between the noted components being effected prior to insertion of the assembly and end cap into a cylindrical pressure vessel component, whereby the opposed surfaces in registry with the weld are exposed to ambient temperatures, eliminating the danger of damage to the bladder in the course of welding. The bladder subassembly and end cap are thereafter inserted into and weldingly connected to a pressure vessel, the open mouth portion of which is inwardly deformed to overlie the end cap and retainer portion of the bladder subassembly, dependably to secure the components together and to effect the desired seals between adjacent components. The invention is further directed to the method of forming the described vessel.

Abstract: The present invention is directed to an extension mechanism adapted to be interposed between the fixed strike plate of an automobile trunk and the lock elements of the trunk lid. The device enables the trunk lid to be locked at any of a series of partially ajar positions whereby cargoes of a variety of sizes may be readily transported with safety and security.

Abstract: The present invention relates to an attachment clamp adapted to be mounted to a ceiling, such as a dry wall or acoustical tile ceiling, for structurally supporting a lighting fixture to the ceiling. The attachment clamp, which is formed of an integral resilient metal blank and a threaded adjustment member includes a foot portion adapted to be braced against the upper surface of the ceiling and a locking finger adapted to underlie the ceiling in spaced parallel relation to the foot portion, the threaded adjustment member being operable variably to space the foot and finger to clamp a thickness of ceiling between the two noted components.

Abstract: A low cost repairable accumulator device having an effective seal defined between an end cap carrying the gas charging valve assembly and the remaining components of the pressure vessel without the use of O-rings or like auxiliary sealing members. The bladder assembly incorporates integral protuberances which coact with portions of the pressure vessel and/or the end cap to achieve the desired seals.