Abstract: A sealing assembly is disclosed for effecting a sealing joint between relatively rotatable elements which include a stationary element and a rotatable shaft passing through the stationary element. The sealing assembly includes a stationary seal integral with or secured to the stationary element, the stationary seal having an annular sealing surface surrounding the rotatable shaft. A rotatable seal ring surrounds the shaft and has an annular sealing surface for engaging and cooperating with the annular sealing surface of the stationary seal to establish a seal therebetween. A rotatable collar is secured to the shaft for rotation therewith, and at least one selectively adjustable spring assembly is mounted on the collar for biasing the seal ring against the stationary seal to effect the sealing joint.

Abstract: A snap-on clamp is disclosed for securely fastening one object to another, such as fastening a flexible hose about a pipe, a nipple, or the like, and includes an open-ended, substantially annular band having a pair of opposed, interlockable members disposed at the open ends thereof. One of the interlockable members includes a generally arcuate jaw defined by the outer cantalevered toothed arm having a plurality of teeth along the radial inside thereof, and an inner arm spaced radially inwardly of the outer arm defining a mouth therebetween. A pair of radially extending support brace members are disposed between the arms on the sides thereof at the end of the jaw opposite the open end of the mouth defined thereby. The brace members and the upper and lower arms define a through hole therebetween. The other interlockable member comprises a toothed tongue positionable within the mouth between the arms of the one interlockable member and passable through said through hole.

Abstract: A solid state clock for an automobile or the like, which includes display means in the form of a vacuum fluorescent display. Current is supplied from the automobile battery to the display through an integrated circuit or "chip". The voltage from the battery is doubled by an inductor coil coupled between the battery and the integrated circuit. An electrical switching means in the form of a transistor is coupled between the integrated circuit and the inductor coil for supplying converted frequency thereto. A second switching transistor and a Zener diode is provided to regulate the duty cycle of the first transistor to maintain the voltage to the display substantially constant.

Abstract: A liquid level control system is disclosed for use with a swimming pool or the like having a pool reservoir, a main drain or outlet, usually at the bottom of the reservoir, and an outlet located at a predetermined water maintenance level for the pool. The system includes fluid amplifier means positioned relative to the pool reservoir for sensing an interface between liquid and gas, or water and air, at the surface of the water in the pool and developing a fluid pressure signal when the interface falls below a predetermined level. Liquid circulation means, including a skimmer at the surface of the water in the pool reservoir is provided for circulating water from the pool reservoir between the outlet and an inlet. A portion of the water circulated by the circulation means is channeled to the fluid amplifier means for operating the same. Fluid valve means is provided which is responsive to the fluid pressure signal developed by the fluid amplifier means.

Abstract: A method of assembling a pressure sensor is disclosed. The sensor includes an aneroid capsule and an electrical circuit secured to opposite sides of a first insulator. The capsule and circuit are electrically interconnected. Second and third insulators are assembled on opposite sides of the first insulator bearing against respective ones of the aneroid capsule and the electronic sensing circuit. The subassembly so formed then is partially inserted into the open end of a hollow can having a closed opposite end with a port therein. A vacuum is applied to the port to suck the subassembly into the hollow can.

Abstract: An antenna for the short-range reception of an emitted signal comprises at least two independent sectors for the coarse location of an emission-beam source in two predetermined directions. Each sector is constituted by a waveguide having a single open face oriented in the intended direction of surveillance. A microwave diode is placed within each sector at right angles to, and at the geometrical center of, the supporting wall of the waveguide which is associated with the diode. The frequencies detected by the antenna are within the range of 10.sup.9 Hz to 30.times.10.sup.9 Hz.

Abstract: An expandable syringe comprising a bag having an opening through which liquid may pass. A closed end tubular valve stem projects outwardly from the bag opening and has an orifice in the side thereof in fluid communication with the interior of the bag. A nozzle has a female coupler sized to be movably mounted about the valve stem. The nozzle coupler has a valve seat against which the valve stem closed end may operationally engage in controlling the flow of liquid between the bag and nozzle. The bag may comprise a corrugated container or a shell having first and second openings and flexible pocket mounted to the shell sealing the first opening and sized for maneveur into and out of the shell through the first opening to displace liquid out of the shell. A nozzle or sprinkler cap may be detachably mounted to the shell over the second opening.

Abstract: A dynamometer and method for determining the power of a prime mover includes drive means mounted for rotation by a prime mover, and oscillatory means adapted to move in a linear reciprocal manner. Translation means are provided whereby the rotary motion of the drive means is transformed to linear reciprocal movement of the oscillatory means, the force imposed on the oscillatory means by the translation means being directly proportional to the angular force imposed by the drive means on the translation means. Means are further provided for applying a variable resistive force to the oscillatory means in opposition to movement thereof in one direction without generating significant amounts of friction heat, movement in the one direction being caused by the translation of motion from the drive means. The amount of resistive force imposed on the oscillatory means is correlated with the rotary speed of the drive means to determine the torque of the drive means and the power of the prime mover.

Abstract: The photosensitive composition contains a water-soluble graft copolymer of a partially hydrolyzed polyvinyl acetate grafted with acrylonitrile and optionally another vinylic monomer, a polymeric emulsion and a diazo compound. This composition possesses high resistance to solvent, abrasion and moisture and a favorable water-dissolubility as well.

Abstract: A flow regulator is disclosed for controlling liquid flow, for example, from a supply source to a receiving tank according to the liquid level in the tank. Specifically, a fluid interaction device communicating with the receiving tank causes a fluid pressure signal to be developed in response to departure of the liquid in the tank from a predetermined level. A differential pressure responsive valve adjusts liquid flow from the supply source to the receiving tank in response to the fluid pressure signal. Several embodiments and other features including a bypass for enhancing stable flow and a preferred valve structure are disclosed.A beverage dispensing system incorporating the aforesaid flow regulator is also disclosed. A cold carbonated liquid is continually circulated past dispensers from a pressurized chill tank having a carbon dioxide atmosphere. The flow regulator admits further liquid to the system from a supply source whenever liquid is tapped from the system by the dispensers.

Abstract: A ski board including an elongated riding platform, a pair of mounting brackets, a pair of skis, and resilient means for joining the skis. The elongated riding platform is of a length sufficient to permit a person to stand on the platform with one foot in front of the other. The mounting brackets are attached to the underside of the elongated riding platform in longitudinally spaced relationship. The skis are attached to the mounting brackets in longitudinally aligned relationship for pivotal movement about horizontal axes. The resilient means for joining the skis connects the rear edge of the leading ski to the tip of the trailing ski. With this construction, the trailing ski will track the leading ski over uneven terrain without the possibility of bottoming out.

Abstract: A monitoring system is comprised of an elastomer balloon housed in a rigid cage having a plurality of windows which is designed to continuously indicate the state of collapse or expansion of the internal cuff or cuffs of an encotracheal tube. This balloon monitor is interconnected in series with the pneumatic channel through which the cuff or cuffs are inflated. The volume of the balloon may be observed visually with reference to its filling the cage enclosure denoting thereby its state of inflation and therefore, also that of the endotracheal cuff. Calibration of the balloon monitor provides means for accurately observing both the volume and pressure of air in the system. Therefore, visual inspection of the balloon monitor indicates by reason of the calibration the prevailing level of pressure in the patient's endotracheal cuff.

Abstract: An expandable syringe comprising an elastic bag having an opening through which liquid may pass and a nozzle having a tubular body defining a central passageway and a tip on an end thereof. The nozzle is provided with at least one peripheral port in fluid communication with the tubular body central passageway. A mount is also provided for detachably mounting the nozzle to the elastic bag with the tubular body central passageway in valve controllable fluid communication with the elastic bag opening.Means for storing and readily obtaining access to a set of individually proportioned and encapsulated chemical agents for successive use with an expandable syringe comprising a case and a unitary slit jacket sized to hold juxtaposed envelopes encapsulating the agents and sized to be slidably received within the case. The jacket has a pair of juxtaposed tabs adapted to be manually gripped in sliding the jacket into and out of the case.

Abstract: An improved snap-on-clamp is provided for securely fastening one object to another, such as fastening a flexible hose about a pipe, a nipple, or the like, and includes an open-ended, substantially annular band having formed at its ends a pair of opposed, interlockable members. Each interlockable member includes an arcuate jaw having a plurality of teeth which interlock with the teeth of the opposed member's jaw when the interlockable members are interengaged and the clamp is in a clamping position. Each interlockable member further includes resilient bias means spaced apart from its respective jaw to provide opposing forces to the interlocked jaws so that the plurality of teeth are forced together, thereby preventing separation of the interlockable members other than by transverse shear.

Abstract: An apparatus for lifting and transporting an invalid from a wheelchair to a bed or other location and back including a sling suspended from a motor driven winch for raising and lowering the sling. The winch is suspended from a motorized traverse mechanism for reciprocably moving the winch and sling along a horizontal track attached to the ceiling of a room for transporting the invalid.

Abstract: The invention provides an automatic cancelling turn signal for a motorcycle or the like having a transmission with at least two forward speeds which operates by cancelling the turn signal in response to an upshift. The apparatus comprises left and right turn signal lights, switch means for selectively activating the left or right light, and inactivating means for inactivating the lights responsive to the shifting of the transmission from a lower gear to a higher gear. Means are also provided for including a four-way flasher in a turn signal system.

Abstract: A shallow relief printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes an array of small protuberances in non-image or background areas to prevent bottoming. Photopolymerizable elements, as well as processing techniques, are also disclosed for making such printing plates.

Abstract: A shallow relief printing plate is disclosed having a polymerized layer of less than about 0.020 inch and which includes an array of small protuberances in non-image or background areas to prevent bottoming. Photopolymerizable elements, as well as processing techniques, are also disclosed for making such printing plates.

Abstract: An apparatus for winding stock in coil fashion. The apparatus includes a base, a variable speed motor, a speed selection control unit, a coil guide, and clutch means. The variable speed motor is mounted on the base and operatively joined through a first gear box to a drive shaft equipped with a reel for taking up the stock. The speed selection control unit regulates the speed of the motor having monitoring means responsive to movement of the stock at a point remote from the reel. The monitoring means instantaneously signals the motor to slow in response to momentary slight increases in the speed of the stock at the remote point as the diameter of the stock on the reel builds to maintain the speed of the stock at the selected speed on the control unit. The coil guide is operatively joined through a second gear box to the first gear box for rotation and reciprocation to direct the stock onto the reel being carried on a support shaft linked to the second gear box through reciprocal camming means.

Abstract: A double cuff for endotracheal tubes is designed with two inflatable balloons, shaped to fully occupy the spaces above and below the open larynx. The two cuffs have a common inflation channel and therefore after their inflation are in free communication with each other. The lower cuff with its thin non-elastic walls rests in the upper trachea, applying a pressure against the walls of the upper trachea and subglottic structures determined by the behavior of an upper cuff whose walls are elastic. This elastic cuff occupies the space immediately above the larynx and extends slightly into the pharynx. Elastic properties of the upper cuff confer, in effect, a pressure relief system to the lower non-elastic cuff as a result of their interconnection through the common inflation channel.