Abstract: A large volume cement mixer that is readily mobile and can be set up for use with a concrete batch plant at a given location. The cement mixer is carried on an elongated frame having wheels on one end and a gooseneck connection on the front end for towing purposes. A longitudinally movable carriage is carried on top of the elongated frame and the carriage is adapted to carry a large cement mixer mounted thereon. In operation, the elongate frame is braced in approximately 45.degree. angle attitude as the carriage supports the cement mixer in generally horizontal, rotatable fixture. Hydraulic devices are provided for rotating the cement mixer during the mixing mode of operation and, after completion, the carriage structure is hydraulically controlled to move upward along the elongate frame to a dump position whereupon the cement mixer is rotated forward and the mixed concrete is allowed to fall to a discharge position.

Abstract: An emu shoe for discouraging combat and aggression towards other emu which consists of a single, flat foot cover of characteristic shape which foot cover includes instep and heel panels that are firmly secured by VELCRO.TM. adhesive to maintain the shoe in place through all bird activity.

Abstract: A package for an elongated flexible fiber. The package comprises a pair of package portions which define a fiber receiving cavity therein. Lips around the perimeter of the package allow a fiber to be wrapped thereon and passed between the lips into the fiber receiving cavity. Each package portion defines a fiber end receiving cavity therein, each fiber end receiving cavity being adapted for receiving an end of the fiber. Each fiber receiving cavity may be deflected away from the opposite package portion, thereby freeing the corresponding end of the fiber. The natural spring action of the elastically flexible fiber will cause the end of the fiber to pop radially outwardly from the package. Terminals, operating tips and other devices may be attached to the ends of the fibers.

Abstract: A mailbox assembly consisting of a mailbox and telescopically assembled sectional post wherein all members are constructed of high impact resistant plastic and all members are tethered together so that disassembled components may be readily reassembled to form the serviceable mailbox assembly.

Abstract: Methods are provided for overpressured perforating and fracturing of a subsurface formation in a substantially deviated well. A perforating gun is run into the well and is pushed through the deviated portion thereof on a coiled tubing string. The coiled tubing string contains an internal supporting pressure which is high enough to prevent collapse of the coiled tubing string prior to perforation of the well and which is low enough to avoid rupturing the coiled tubing string. After the perforations are formed and the fractures are initiated, the supporting gas pressure in the coiled tubing string is bled off to the atmosphere and the coiled tubing string and perforating gun are retrieved.

Abstract: An air duct fitting or pipe coupling used for connecting air conditioning or heating ducts. The fitting may be used as an integral unit to connect the ducts at a predetermined angular relationship from one another. The fitting may be severed into two sections, each section of which may be used to connect ducts at a different angular relationship from the integral unit. The fitting may be characterized as an elbow fitting. In the preferred embodiment, the fitting is a thin wall molded unit made of a non-metallic material. The first and second sections may be severed along a plane defined by a V-shaped groove molded in the fitting.

Abstract: Methods of growing transplantable nursery stock plants are provided wherein the root growths of the plants are controlled. The methods basically comprise forming a plurality of spaced holes in the ground and placing a porous fabric blanket over and into the holes whereby depressions in the blanket conform with the holes. The porous fabric blanket has sufficient strength to constrict penetrating roots whereby root growth below the blanket is restricted and enlarged root nodule formation and root branching are promoted within the depressions above the blanket. The depressions are filled with a growing medium, and a plant is planted and grown in each of the depressions. The plants are subsequently removed from the depressions for transplanting.

Abstract: A fluid injection device and method includes an upstream conduit, downstream conduit, a support for holding the upstream and downstream conduit with their upstream and downstream passageways aligned and maintaining a gap between the adjacent ends of the conduits, and a secondary fluid source connectable to the gap for injecting secondary fluid into the gap and downstream throat. The upstream passageway includes an acceleration nozzle for accelerating the velocity of the fluid flow so that the pressure exerted by the fluid on the walls of the upstream passageway is substantially reduced and the reduced pressure is maintained across the gap. The downstream conduit includes a downstream passageway which maintains the accelerated velocity of the primary fluid and which conducts the accelerated fluid to a deceleration nozzle. The secondary fluid source injects secondary fluid into the gap and downstream conduit at a preselected higher pressure than the fluid exiting the upstream throat.

Abstract: A downhole rotary cutting tool having an elongated cylindrical body with radially expanded cutting blades that are controlled by application of selected fluid as controlled from a surface source. The cutting blades have a combined abrading/jetting capability as hardened cutting surfaces are disposed at critical points of each blade and each cutting blade is ported to provide lateral jet emissions for entry into the surrounding earth medium.

Abstract: A prefilled disposable apparatus is provided for placing thermoplastic filling material including gutta percha in an endodontically prepared root canal. A hollow carrier has a distal end and a proximal end and has a cylindrical carrier bore defined therethrough. A plug of thermoplastic filling material is contained in the carrier bore. A displacing shaft is received in the proximal end of the carrier bore for displacing the thermoplastic filling material from the distal end of the carrier bore into the endodontically prepared root canal.

Abstract: An inventive roller and an inventive conveyor assembly which includes at least one such roller. The inventive roller comprises: an axle housing; a polymer foam segment positioned around the axle housing; and a polymer coating which covers the exterior of the polymer foam segment.

Abstract: A road surface treating apparatus including a wheel-supported framework having forwardly extending arms pivotally carried thereon. The arms have a transversely extending tool bar mounted to their forward ends. A tool-supporting frame is detachably and adjustably mounted on the tool bar. A cutter drum housing is pivotally mounted on the tool-supporting frame for floating pivotation about a horizontally extending, fore-and-aft axis to facilitate side-to-side rocking movement of the drum housing. A cutter drum is rotatably mounted in the housing and carries circumferentially spaced rows of cutter blades each mounted for rotation about a horizontal axis. A pair of horizontally spaced, shock absorber units is connected between the housing and tool-supporting frame to damp and smooth the side-to-side rocking movement of the housing and the cutter drum mounted therein.

Abstract: The present invention provides a pressure surge resistant rupture disk assembly adapted to be sealingly clamped across a pressurized fluid containing passageway. The assembly basically comprises first and second rupture members having predetermined rupture pressures, the second rupture member facing the pressurized fluid and having a predetermined rupture pressure equal to or lower than the rupture pressure of the first rupture member. At least one opening is provided in the second rupture member for allowing a restricted pressurized fluid flow therethrough.

Abstract: A pickup apparatus for a stringed musical instrument includes an electromagnetic string vibration sensor, preferably including at least one winding, and a feature associated therewith, preferably a conductive closed circuit around the winding, to suppress resonant peaks and thereby equalize the harmonic reproduction. The apparatus preferably includes two such windings and circuits connected in a hum-canceling manner. A second hum-canceling pair of windings having a lower inductance to reproduce clean highs without phase cancellation can be added along with a resistive-capacitive network so that the combination can reproduce a wide variety of different sounds, all at a consistent high output level.

Abstract: A data terminal which enables a craft technician to communicate through a gateway processor to other computers includes a program language support library and an operating system which can receive a condensed form applications program and supplement the received program to create a fully executable applications program. This permits convenient downloading into the terminal over a conventional telephone circuit. Also disclosed is an improved interface through which a telephone circuit can be tested to determine if it is active and idle in a substantially non-invasive manner. Respective computer protocols can be entered in the terminal in association with telephone numbers of respective computers for automatic use whenever the respective computer is called. A limited display area of the terminal is controlled so that a larger page of text can be sequentially displayed through it as if the limited display area is scanning across the larger page of text.