Abstract: A saw table gauge block having a polygonal, cross-sectional configuration. A pair of axially spaced pegs are secured to each facet of the block and extend outwardly therefrom. At least one end face of the block is provided with indicia representing increments of a unit of length alignable with corresponding units of length on a scale applied to the saw table. The pegs are insertable into apertures in the saw table for holding the gauge block at a position on the table for cutting a workpiece to a desired length.

Abstract: A transfer conveyor having a frame assembly in which a large diameter drive roller is mounted together with tension rollers. A pair of small diameter nose bars are mounted on each end of the frame assembly, and an endless conveyor belt of fabric or plastic chain is looped around the drive roller, tension rollers, and nose bars. A quick release tension mechanism is operatively connected between the frame assembly and one of the tension rollers, whereby the belt can be removed from the rollers and nose bars without the use of any special tools. A lateral adjustment mechanism is operatively connected between the frame assembly and upper run of the endless conveyor belt, whereby the transfer belt can be maintained in alignment with two other conveyors between which the transfer conveyor is interposed, and a quick disconnect mechanism is also provided for releasing the transfer conveyor from a base support.

Abstract: A transfer conveyor having a frame assembly in which a large diameter drive roller is mounted together with tension rollers. A pair of small diameter nose bars are mounted on each end of the frame assembly, and an endless conveyor belt of fabric or plastic chain is looped around the drive roller, tension rollers, and nose bars. A quick release tension mechanism is operatively connected between the frame assembly and one of the tension rollers, whereby the belt can be removed from the rollers and nose bars without the use of any special tools. A lateral adjustment mechanism is operatively connected between the frame assembly and upper run of the endless conveyor belt, whereby the transfer belt can be maintained in alignment with two other conveyors between which the transfer conveyor is interposed, and a quick disconnect mechanism is also provided for releasing the transfer conveyor from a base support.

Abstract: A transfer conveyor having a frame assembly in which a large diameter drive roller is mounted together with tension rollers. A pair of small diameter nose bars are mounted on each end of the frame assembly, and an endless conveyor belt of fabric or plastic chain is looped around the drive roller, tension rollers, and nose bars. A quick release tension mechanism is operatively connected between the frame assembly and one of the tension rollers, whereby the belt can be removed from the rollers and nose bars without the use of any special tools. A lateral adjustment mechanism is operatively connected between the frame assembly and upper run of the endless conveyor belt, whereby the transfer belt can be maintained in alignment with two other conveyors between which the transfer conveyor is interposed, and a quick disconnect mechanism is also provided for releasing the transfer conveyor from a base support.

Abstract: An external slot valve for controlling blood flow through the outlet of a shunt of a cardiopulmonary bypass pump wherein a valve seat having a knife edge is fixedly connected to the fixed plate of the bypass pump, and a valve head having a knife edge is pivotally connected to the fixed plate. The valve head is spring biased to the closed position against the valve seat to pinch the shunt extending therethrough. When in the open position, the knife edges provide a slot forming a large orifice for the blood to flow through the outlet of the shunt to diminish the work of the pump and reduce trauma to the blood.

Abstract: A coating composition for preventing or reducing the amount of labile particulate matter released from a surface of a material which comprises a water soluble alkali metal silicate, or acrylic polymer latex and a surfactant. The coating composition is particularly applicable to the materials used for thermal and acoustical insulation, and most particularly to the coating of silicon containing materials.

Abstract: A break away overcap is used for maintaining a closure in sealing engagement with the open end of a vial. The overcap is molded from a fracturable plastic and is provided with a pair of spaced, parallel score lines or V-grooves extending across the top wall of the overcap and downwardly of the cap skirt to the lower edge thereof on each side of the cap. Thumb and finger engaging portions are provided at the lower edge of the skirt adjacent the terminal ends of the score lines so that by pushing inwardly on the thumb and finger engaging portions, the overcap breaks into three pieces to thereby expose the closure for insertion of a syringe needle therethrough into the vial for removal of the vial contents therefrom.

Abstract: A portable shooter's seat having a detachable bench and firearm support. The seat and bench have a plurality of legs, some of which are pivotally connected to the seat and bench, respectively. The seat and bench each have one leg fixedly connected thereto and attachable to each other for connecting the seat to the bench. For supporting the seat on the ground independently from the bench, the seat and bench legs are disconnected, and the set leg is reoriented to the ground supporting position. Some of the seat and bench legs are foldable to a stored position, and a shoulder strap is connected between the bench and the seat to facilitate carrying the bench and seat in the stored position. A firearm support is connectable to the seat when the seat is detached from the bench.

Abstract: A rifle rest having a pair of frame members pivotally connected to each other in such a manner to provide a cradle portion movable between an open and closed position, and a pair of feet for supporting the rifle rest on a supporting surface. A foldable sand-filled bag is supported on the cradle portion, so that when the support feet are moved in a direction away from each other, the cradle portion and associated sand bag are moved in a closing direction to thereby grip the stock and barrel of a rifle supported on the sand bag. The support feet are provided with friction surfaces for holding the rifle rest in a supporting surface, and a handle is connected to the cradle portion to facilitate the carrying of the rifle rest.

Abstract: A mobile foldable storage cart for music stands wherein a tubular frame assembly is constructed and arranged to form a cart which is foldable to a storage position when not in use. A telescopic rod assembly is provided for maintaining the frame assembly in an erected operative position and for locking the frame assembly in a folded inoperative position. The frame assembly includes inclined, spaced, longitudinally extending rods for slidably receiving a plurality of music stands. A portion of the frame assembly provides a stop to arrest the music stands at the lower end of the inclined, longitudinally extending rods.

Abstract: A method for masking components of a hot water tank from insulation wherein a carrier sheet containing a pair of inflatable rings is insertable into the space between the inner tank and outer shell of the hot water tank. The inflatable rings surround electrical components on the inner tank to prevent insulation injected into the space from covering the electrical components. Inflatable bags are insertable into threaded bores on fittings connected to the inner tank to prevent the insulation from covering the threaded bores, and to prevent insulation from escaping to the outside of the outer shell.

Abstract: A cannula system for a biventricular cardiac support system or a cardiopulmonary bypass system wherein a first cannula having a pair of side-by-side lumens is adapted to be positioned within the left atrium and left ventricle and aorta of a patient. Blood from the left atrium and left ventricle drains into one of the lumens in the first cannula and is conveyed to the inlet of a pulsatile flow cardiopulmonary bypass pump from where it is pumped through the other lumen into the aorta of the patient. An inflatable balloon is provided at the distal end of the first cannula for holding the distal end of the cannula in the aorta above the aortic valve, The first cannula includes an axially extending bore communicating with a space in the aorta between the inflated balloon and the aortic valve for conveying cardioplegic solution to the space communicating with the left and right arteries of the patient.

Abstract: A cam controlled pulsatile flow pump for neonatal and biventricular cardiac support systems wherein cylindrical cams having various profiles designed for a particular patient are selectively mounted on the output shaft of a motor. A roller follower engages the cam and is operatively connected to a compression plate under which at least one compressible conduit containing the patient's blood extends. The stroke volume of blood contained in the conduit can also be controlled.

Abstract: A device for processing water having high concentrations of scale forming compounds and high solids content in a high efficiency vapor compression distillation system wherein a plate-in-frame heat exchanger is submerged in a boiling solution contained in a boiler drum. An impeller in the drum continuously circulates the boiling solution through the heat exchanger at a velocity to prevent suspended solids from accumulating and to inhibit scale formation on the boiling surfaces of the heat exchanger.

Abstract: A cannula system for a biventricular cardiac support system or a cardiopulmonary bypass system wherein a first cannula having a pair of side-by-side lumens is adapted to be positioned within the left atrium and left ventricle and aorta of a patient. Blood from the left atrium and left ventricle drains into one of the lumens in the first cannula and is conveyed to the inlet of a pulsatile flow cardiopulmonary bypass pump from where it is pumped through the other lumen into the aorta of the patient. An inflatable balloon is provided at the distal end of the first cannula for holding the distal end of the cannula in the aorta above the aortic valve. The first cannula includes an axially extending bore communicating with a space in the aorta between the inflated balloon and the aortic valve for conveying cardioplegic solution to the space communicating with the left and right arteries of the patient.

Abstract: A tapered side support for conveyor belts wherein tapered recesses and projections having correspondingly tapered surfaces are selectively provided on the sides of a conveyor support frame assembly and a conveyor belt. The tapered recesses and projections are slidably mounted relative to each other for supporting the conveyor belt. When used on an endless conveyor belt, the load supporting flight and return flight are supported by the tapered side support, which also facilitates the flushing and draining of the side support during the cleaning of the conveyor belt.

Abstract: A dispensing bulb having a squeezable body portion and integral squeezable neck portion having a pair of diametrically disposed vent holes. An adaptor is mounted in the neck portion and is provided with a cylindrical portion extending into the bulb neck portion beyond the vent holes and spaced radially inwardly therefrom. A dispensing tube is connected to the adaptor and communicates with the interior of the bulb. The neck portion of the bulb is squeezed to draw liquid into the tube, and the cylindrical portion of the adaptor limits the squeezing of the neck portion to prevent liquid from being drawn through the tube into the body portion of the bulb.

Abstract: A stab cap for a vial wherein an open-ended sleeve functions not only as a closure for sealing against a seal disc on the open end of a vial but also as a support for a tubular member having a depending tubular portion terminating in a sharp end portion for puncturing the seal disc to facilitate the transfer of fluid from the vial to a syringe. A flexural connection is provided between the sleeve and tubular member, the connection being integral with the tubular member and formed of the same material.

Abstract: A biventricular pulsatile cardiac support system having a mechanically balanced stroke volume wherein a pair of side-by-side, valveless, compressible conduits extend through the compression chamber of a pulsatile flow cardiopulmonary bypass pump and a passive exterior valve positioned at the inlet and the outlet of the pump. The inlets of the conduits communicate with the right and left atria of the patient's heart and the outlets of the conduits communicate with the pulmonary artery and aorta so that the volume of blood passing from the right atrium, through the right ventricle, to the pulmonary artery, is substantially balanced with the volume of blood passing from the left atrium through the left ventricle to the aorta. The support system can be operated in single or biventricular support mode and in partial or total cardiopulmonary bypass mode, omitting the oxygenator used in conventional cardiopulmonary bypass, and in so doing, rely on the patient's own lungs rather than artificial oxygenator.