Abstract: A coil element, comprising a quadrature surface coil, includes side by side loops, slightly overlapped to the degree necessary to cancel mutual inductance. A coil includes a split-capacitor configuration for balanced-to-unbalanced conversion between the coil and a coaxial cable, without interfering with the highly magnetic environment of a magnetic resonance imaging system. A coil includes multiple diodes and current stabilizing impedances in parallel, or alternatively a combination of a fast low-power PIN diode and a slow high-power diode to effectively multiply the power handling capability of fast diodes for passive decoupling in a decoupling circuit for reducing the risk to the patient over active decoupling. A coil includes a counter-rotating decoupling circuit to cancel the effects of decoupler radiation, and to prevent lowering of the quality factor of the decoupling circuit and the detection of undesirable image artifacts.

Abstract: By means of having taken advantage of certain physical properties of solids with a manufacturing process of incrementally deforming hollow links, there is produced new hollow simulated diamond cut multifaceted jewelry rope chain, which results in a product weighing up to 60% less than its solid counterpart, but which in its aesthetic looks is similar to solid diamond cut jewelry chains, and furthermore, with a hardness greater than the same hollow chain that has not gone through the process. This invention presents a new diamond cut chain, which costs a fraction of the price of a solid chain aesthetically similar, and in which the chain may vary in cross-section, such as forming a square or a hexagon.

Abstract: A fluid container draining device for draining fluid from a fluid container, an oil filter, in a controlled manner. The fluid container draining device has a threaded screw with a sharpened tip and a channel communicating between an opening at a forward end of the screw and a rear region of the threaded screw. When the screw is turned it will penetrate the wall of the fluid container and enter the fluid containing cavity of the fluid container. The threaded screw has a radially extending abutment surface to provide fluid tight sealing between the screw and the fluid container's walls to prevent fluid leakage. A fluid valve is positioned at the rear region of the screw to provide fluid flow control between the interior of the fluid container and outside the fluid container. The fluid valve is provided with a fitting for connection to a suction line to thereby permit fluid to be evacuated from the fluid container.

Abstract: By means of having taken advantage of certain physical properties of solids with a manufacturing process of incrementally deforming hollow links, there is produced new hollow diamond cut jewelry rope chain, which results in a product weighing up to 60% less than its solid counterpart, but which in its aesthetic looks is similar to solid diamond cut jewelry chains, and furthermore, with a hardness greater than the same hollow chain that has not gone through the process. This invention presents a new diamond cut chain, which costs a fraction of the price of a solid chain aesthetically similar.

Abstract: A quick adjusting shoe lacing system. The system has a cinch plate having eyelets which are spaced apart to about the same distance as eyelets formed in the lacing area of the shoe. The shoe laces are laced through the cinch plate eyelets along with the eyelets in the lacing area of the shoe. A strap, fixably attached at a lower end to the shoe and loopable at an upper end through a slot in the cinch plate is used to adjustably pull the cinch plate and the shoe laces looped through its eyelets downwardly and thus increase the shoe lace tension. Alternatively, a latching buckle linked to the cinch place via a wire loop can be used to affect changes in lace tension. These changes in lace tension can be affected even after the shoe laces are laced and tied up, offering the ability to make quick and fine adjustments to shoe laces.

Abstract: A polymeric contrast enhancing agent for magnetic resonance images having a chelating agent, which can be bound to metal ions having at least one unpaired electron, such as gadolinium. Examples of such chelating agents include DTPA-ethylenediamide-methacrylate copolymer and poly-(DTPA-ethylenediamide). These contrast enhancing agents, bound to the metal ions, are then administered to a patient, and following this the MR images are taken.

Abstract: A fluid sampling device for use in obtaining a precise volume of fluid to be sampled from a sealed vessel equipped with a hydraulic fitting to which the fluid sampling device is connectable. The device has a fluid sampling float chamber with an internally sealable top opening which opens into a bottom end of an air channel and a bottom opening which opens into a top end of a fluid channel. A floating ball is located in said fluid sampling float chamber and is sized to be sealingly sealable at the top opening. A vacuum generating means relying on air flow through a venturi to draw air out of the fluid sampling chamber through the air channel is located above the top opening of the float chamber. An air valve is located downstream of the venturi for controlling the direction of air flow though the venturi. A hydraulic coupler is located at a bottom end of the fluid channel which when connected to the hydraulic fitting on the sealed vessel opens, but when disconnected from the fitting closes.

Abstract: A reusable viscous material dispensing system. The system has a sealed pressure cylinder with a rounded upper region with an inert gas inlet, and a rounded bottom region with a viscous material ingress and egress opening. A pressurizing boat is contained in the cylinder. The pressurizing boat has a lower, hull portion which is weighted with ballast, and an upper portion. The lower, hull portion and upper portion join along a circular interface region. The diameter of the circular interface region is smaller than the inner diameter of the cylinder. The boat floats in the cylinder filled with viscous materials, such as thick lubricating greases. The viscous material forms a gaseous pressure seal between the interface region of the boat and inside of the pressure cylinder. Fins extend radially outwardly from the interface region of the pressurizing boat. These fins prevent the interface region from scraping viscous materials off the sidewalls of the pressure cylinder.

Abstract: A device for accurately supplying a fluid such as a cutting fluid to the cutting portion of a tool of any of a wide variety of tools includes a tool holder having an internal fluid passageway and a forward end formed to include an annular fluid supply groove in communication with the fluid passageway, a nozzle ring having nozzles communicating with the annular fluid supply groove, and a coupling ring, which is screwed onto the forward end of the tool holder, for fixedly fastening the nozzle ring to the tool holder in an attachable and detachable manner. A cutting fluid from a fluid supply source is fed under pressure to the nozzles of the nozzle ring through the fluid passageway and the annular fluid supply groove, and the cutting fluid is jetted from the nozzles toward the cutting portion of the tool, such as a drill, held by the tool holder.

Abstract: A new apparatus and method for immunoassays. A gold sol bead is held in a funnel member. First antibodies are associated with the gold sol bead. When the sample contacts the gold sol it dissolves the bead. A second antibody is impregnated on an immunosorbent surface. When the dissolved gold sol passes this surface, any antigen already reacted with the first antibody present reacts with the second antibody forming a gold: first antibody: antigen: second antibody: immunosorbent complex. The gold sol acts as the visible label.

Abstract: The disclosure is directed to the method of addition, in a fixed and inexpensive way, of a cylindrical sleeve to a key for an anti-theft wheel lug nut having a complementary key pattern formed on a surface thereof, and to the resulting key. The cylindrical sleeve of the key is formed separately from the key and then rigidly attached onto a groove formed in the key itself. The sleeve acts as a guide for the key and prevents the dismounting thereof during the torquing and untorquing of the complementary patterned lug nut.

Abstract: The invention relates to a novel enclosure means containing, or adapted to contain, a fluid pathway or channel. A fluid nozzle or jet is adapted to be affixed to an entry port to said fluid pathway. The nozzle, or jet, can be connected to a source of water, or water and air, as in a whirlpool jet. A fluid stream entering the fluid pathway is directed onto a flexibly resilient portion, or diaphragm, of the enclosure means, and after contacting the said diaphragm, is removed from the enclosure means. The rate of inflow to outflow of fluid is equalized so fluid build-up in the enclosure means is avoided.The fluid stream impinging on the diaphragm, and thereafter being removed, imparts a vibratory action on the diaphragm which gives rise to a massaging effect on the neck or other part of the anatomy resting on the enclosure means.The enclosure means is preferably placed or supported on a whirlpool bathtub ledge or support so that connections to a source of fluid, under pressure, is readily available.

Abstract: A bathtub, and in particular, a whirlpool bathtub or spa, is provided with an upwardly extending surrounding wall portion or surrounding collar at the sitting end of the tub. The collar is preferably formed of plastic as an integral unit with the plastic bathtub wall, and has a plurality of apertures formed therein for the mounting of speakers therein. The speakers, once mounted within the apertures, surround the sitting area of the bathtub. The speaker apertures are placed above the overflow of the bathtub. The speaker apertures are sealed at the rear by a baffle plate, to form one or more acoustic chambers. Overlying the speaker apertures is an open grillwork. The speakers are connected to a sound producing system, such as a radio, tape deck or cassette. The sitting area is thus surrounded by rearwardly enclosed multiple speakers, mounted above the waterline, the speakers being integrated into an upward extension of a bathtub wall by means of the integrally formed speaker apertures.

Abstract: A readily snap-fitted and removable cover plate, for covering the outwardly-facing or exposed surface of a fluid nozzle body flange, includes a body portion for covering such flange, and tabs projecting from segments of the body portion, movable into and out of alignment with portions of the flange defining an opening therethrough, so as to be retained in or released from engagement with the flange. Spring loading biases the cover plate projecting tabs against the flange to retain engagement of the cover plate with the flange. The cover plate exposed surface has a finish different from the finish of the exposed surface of the flange, which cover plate finish may be selected so as to coordinate with the finish of other fittings in the bathroom.

Abstract: An apparatus for integrating a plurality of audio systems, for enabling a selected one of a plurality of audio inputs to be transmitted as an audio output. It is adapted to integrate, for example, a stereo sound system and a telephone sound system, so as to be operable from a control panel adapted to be mounted in the wall of a bathtub or the like.The apparatus is adapted to enable elements of the integrated system to be shared in common by a plurality of audio inputs, so as to generate a selected audio output.The apparatus includes a voltage-controlled amplifier, for controlling the selected audio input signal with a direct-current control voltage. It further includes a plurality of parallel circuits, for generating the direct-current control voltage, one such circuit for each of the plurality of audio inputs, and elements for switching from one such circuit to another.

Abstract: A fluid-flow valve or nozzle discharging a stream of continuously changing direction, particularly for use as a shower head or for use in hydrotherapy to discharge a fluid stream or a turbulent jet of an intimate water-air admixture, respectively, the preferably adjustable discharge pattern covering a conical or annular surface of revolution, or variations thereof. The valve or nozzle comprises a body, a moveable rotor chamber coaxially mounted within the valve body, and a rotor body within the rotor chamber. Water and air are fed to inlets and to pass through the bore of the moving rotor body, and discharged through a flared mouth where a control knob can be rotated to influence the fluid flows and the motion of the rotor body.