Abstract: The method of this invention includes the step of providing a mandrel sleeve shaped on the inside to fit over the small diameter end of a contoured container and being of an outer diameter substantially equal to the large diameter portion of the container. After applying a solvent of the plastic sheet material to the trailing edge of a length thereof, the sheet is wrapped around the container and the mantrel sleeve so that the trailing edge overlaps the leading edge and the solvent forms a firm bond between the overlapped edges. The mandrel sleeve is then withdrawn from the wrapped length, leaving it around the container, and the sheet material is heat shrunk to fit tightly over its full height around the contoured container. Before the sheet is wrapped around the mandrel and container, an adhesive, such as a hot melt glue, may be applied too that portion of the sheet that is wrapped in direct contact with the container.
Abstract: The watercraft has a catamaran hull system with parallel rear pontoons pivoted for side to side oscillation from the trailing end of front pontoons. A rigid frame interconnects the front portions, and back support post is pivoted to both the frame and to linkage interconnecting the rear pontoons, so that the operator can lean to either side to pivot the back support post and turn the boat in the direction he is leaning. Bicycle pedals rotatably carried on the front of the operator support frame, drive a propeller to propel the boat, and the foot pedaling action may be augmented by lines secured to the pedals so the operator can pull each pedal manually on return.
Abstract: A plurality of mosaic blocks having square bases and right triangular elevations rising from the bases may be nested together to form different patterns depending on the direction in which each triangular elevation is faced. Each mosaic block is erected from a blank, which is die-cut and scored from a relatively stiff sheet, such as cardboard, plastic or the like. The triangular top panel is folded over from the top edge of a tall side panel and then a diagonal panel is foled down and interlocked with a horizontal, square intermediate panel by inserting a tap into a slot formed along a diagonal of the square intermediate panel, which closes the top of the square base.
Abstract: A vibration sensitive safety valve for gaseous fluids using a sphere of ferrous material as a valve plug, the ball being held in a sensitive condition, suspended above a complementary valve seat, by a permanent magnet. The magnetic attraction is such that a significant tremor will dislodge the ball, allowing it to drop and plug the valve passage. A flat non-magnetic spacer disc on the bottom of the magnet allows some lateral movement of the valve ball in response to harmless vibrations, without releasing the ball to close off the valve. A moveable mass within the ball absorbs the effect of minor vibrations.
Abstract: An air ion emitter has a needle-like emitter coaxially mounted within a cylindrical barrel. The barrel is pivoted and rotatable on the base so that it can be pointed in any direction and angle, as at a collector at opposite plurality. The end of the barrel has venturi slots therein so that air flow induced by the emission of ions is radially inward and then axially out the end to scour the needle point and keep it sharp.
Abstract: A small tank or vessel for the containment of pressurized fluids is formed by joining the outer edges of the arms of integral upright and inverted double-Y sections arranged side by side. The arms are part cylinders terminating in the vertical centerline of a cylinder so that a septum between adjacent cylindrical lobes is formed by the vertical legs of the double-Y. A semi-cylindrical shell may be attached to the outer arms of each outside double-Y form.
Abstract: Apparatus for kneading proofed dough balls into pizza shells includes a conveyor belt and a generally cylindrical roller extending across the width of the belt. The roller has a core made up of a plurality of polygonal segment rings placed side to side to rotate with a central shaft, and on each side of such polygonal segment there is a protrusion constituting about three-fourths of a sphere. The polygonal segments are staggered when placed on the central shaft so that the spherical protrusions nest closely together to impress a plurality of spherically concave dimples across the full width of the dough ball as it is flattened out.
Abstract: Apparatus for machining a human tooth includes a rotary cutter that is moved along a predetermined path dictated by motor energizing signals. The cutter is moved vertically by one drive, laterally by another drive and in or out by a third drive. The apparatus is clamped selectively to the patient's jaw or to a model thereof. The dentist's manual work is actually done on a model, with the apparatus being secured to the model in a fixed position. The vertical drive, the lateral drive, and the in or out drive are energized in response to the dentist's manipulation of a joy stick to move the cutter along paths necessary to achieve the desired tooth configuration. A second joy stick is manipulated to vary the attitude of the cutter, about roll and/or pitch axes. Signals proportionate to the extent of each drive operator are delivered to a computer in the sequence and for the period during which the drives are activated.
Abstract: There is shown a roller for pressing and working a dough ball into a pizza shell. In its preferred form, the roller is in the form of a spherical cluster of balls, which are molded or otherwise formed on a polygonal core. The spherical cluster is rotatably contained within a complementary spherical shell carried on the lower end of a fluid duct. Olive oil or other material flowing through the duct will flow ports in the shell to be carried by the cluster of balls and distributed over the dough ball. Ports in the side of the duct allow the oil to flow around the shell to drip directly onto the dough ball near the outer edges thereof. A conical hood around the cluster of balls and the carrier block and retain any olive oil vapors that otherwise may be inhaled by bakery workers.
Abstract: A container for pressurized fluid has a generally rectangular outer shell with relatively flat partitions across the width thereof forming a plurality of compartments. The opposite inner surfaces of each compartment along the length of the vessel are cylindrical. End closures are sealed around the outer shell and they are dished to leave a space around the partitions to enable flow between the compartments.
Abstract: A planetary gear drive system for a fishing reel wherein a spool shaft and a handle shaft are coaxial, the handle shaft carrying a ring gear and the spool shaft carrying a driven pinion. Planetary gears rotatable on a planetary gear carrier engage both the ring gear and the driven pinion at equal angles around the driven pinion. Friction brake means as well as free spool cam means operate directly on the common axis of the handle shaft and spool shaft.
Abstract: The micropipette puller of this invention includes a pair of gripping jaws that pull a length of glass tubing in opposite directions. The source of heat is a laser device and a laser beam is directed against the glass tubing between the gripping jaws and beyond the tubing into a concave mirror, which reflects that portion of the beam that bypassed the tubing, back against the back side of the tubing for uniform heating around the circumference of the tubing.
Abstract: A micropipette puller of this invention includes a pair of gripping jaws that pull a length of glass tubing in opposite directions. The source of heat is a laser and a beam is directed into a zoom lens, or a selected one of a series of lenses, so that a beam of selected length and configuration is refracted against the glass tubing between the gripping jaws.
Abstract: The method includes the step of providing a cylindrical mandrel with vacuum openings around the circumference thereof and of a diameter substantially equal to the maximum diameter of the container. A thermoplastic strip is then wrapped around both the container and the mandrel, and just that portion of the strip enclosing the container is heat shrunk to follow closely the contour of the container. Then, the mandrel is withdrawn from the thermoplastic sleeve and that portion of the sleeve extending above the container is heat shrunk to engage snugly over the top of the container lid.
Abstract: The disclosure is of a compressor for the coil spring of a MacPherson strut. It comprises a top force transfer ring and a bottom U-shaped, helical ramp plate secured together in spaced relationship by tie bars. The U-shaped ramp plate is inserted between coils of the spring to surround the central, shock absorber stem. Then when the device is rotated, the ramp plate is threaded down the coil spring to pull it up into the containment between the tie bars. The slight compression of the coil spring in this manner relieves force against the spring mounting to enable repair and or change of the shock absorber.
Abstract: A template for setting artificial teeth comprises a pair of arched ridge formers pivoted at their front ends to a base so that the overall arch may be made wider or narrower to coincide with the curve of a model of the patient's opposing jaw. Shallow receptacles in the surfaces of the pivoted ridge formers receive the individual artificial teeth so they can be waxed to a base plate made from an impression of the patient's jaw.
Abstract: Carpet engaging support devices for anchoring tippable or slidable objects in desired position on a carpeted floor, the devices having one or more sharpened prongs engagable through and under the carpet, with the prongs being arranged to hold the devices on the carpet against unwanted removal. Spring clips, detent means and magnetic means are provided for releasably securing the devices to the objects to be anchored. In one aspect of the invention, the devices are particularly suited for anchoring a receptacle balanced on top of a carpeted floor hump in an automobile, while in other aspects the devices are particularly suited for anchoring mats, throw rugs and the like.
Abstract: A merchandise display rack comprises a series of chutes that may be connected side by side or stacked. Each chute has a central slideway with a push plate slide, which is pulled forward by an elongated spring. Horizontal, lateral extension panels having parallel back to back V-grooves across the width thereof may readily be broken off along straight lines to selected widths and interlocked to the sides of the slideway. A longitudinal connector member interlocks with the lateral extension panels and vertical side panels to form the chute.
Abstract: A trash bag support stand is formed of two semi-circular bars, secured together on a pair of legs. Complementary coupling components on the ends of the bars are snapped together to form complete rings that are supported horizontally above the ground to receive and emcompass a trash bag. The trash bag is folded back over the top ring and held in place by tabs. When not in use the semi-circular bars are separated and nested for hanging.
Abstract: The merchandise display rack of this invention is particularly adapted for cylindrical ice cream containers. Each rack in the assembly has in-turned side rails so that a row of containers can be supported on their cylindrical sides and fed forwardly by a pusher plate pressing against the trailing container. A stretchable tension member, such as a long coil spring, is attached to the rear of each rack at both sides, brought forward around spaced pulleys at the front and then directed back behind the pusher plate that engages the trailing container. The individual racks may be secured together side by side and vertically with sufficient vertical clearance to accommodate a row of containers.