Abstract: A heavy duty rotary concrete mixing drum capable of attachment to a vehicle. The drum comprises a first end which engages a vehicle powered drive assembly which rotates the drum for mixing of said concrete and a second end from which mixed concrete is discharged. The drum is manufactured from at least one layer of plastics material; wherein the drum includes a wall having integral internal formations which promote mixing and discharge of said concrete and an inner surface which promotes mixing of the concrete.

Abstract: A method for making a concrete mixing drum includes forming a first layer of at least one polymeric material having a surface providing at least a portion of a barrel wall of the drum and a spiral mixing blade projecting from the wall on an inner surface of the drum and forming a second layer on the formed first layer.

Abstract: A method for minimizing nanofiller agglomeration within a polymeric material includes the step of introducing the nanofiller at predetermined parameters into an extruder having the polymeric material therein. The nanofiller introduction is downstream of the area of the extruder wherein the polymeric material had been substantially melted and mixed. After the nanofiller introduction, the melted polymeric material has the nanofiller dispersed therewithin substantially without agglomerated nanofiller. Then the melted polymeric material having nanofiller dispersed therewithin exits the extruder before nanofiller agglomeration occurs.

Abstract: Cell membranes containing glycolipid-enriched membrane (GEM) and non-glycolipid-enriched membrane (non-GEM) domains are targeted using fusion proteins that are anchored in the cell membrane. Fusion proteins to target GEM (or non-GEM) domains are comprised of a selected fluorescent polypeptide, a membrane-targeting sequence of p56Lck (or pp60c-Src for non-GEM domains) and a linker inserted between the polypeptide and the membrane targeting sequence. Localization of fusion proteins in GEM and non-GEM domains is assessed using techniques including confocal microscopy, fluorescence-based techniques, and membrane fractionation. Using these techniques, compounds are screened for their effect on GEM and non-GEM domains of live cells. These fusion proteins therefore represent useful tools for studying subcellular trafficking and the function of discrete compartments in the plasma membrane.

Abstract: A motorcycle parking stand is disclosed that utilizes three shoes oriented to engage a motorcycle wheel at different points around the circumference of the wheel thus maximizing the stabilizing effect of the structure. The shoes are generally wedge shaped or of a shape that resembles the profile of the tire so as to come in contact with the outer edge of the treaded surface of the tire. The first two shoes are pivotally mounted to the stand structure and are fixed in relation to each other. A third shoe is affixed to the forward part of the stand structure to arrest the forward motion of the wheel and to provide support. Engagement occurs by pushing the motorcycle wheel into contact with the pivoting shoes which causes forward rotation of said shoes until the axle of the wheel is forward of the pivot point of the shoes thus enabling gravity to hold the wheel in contact with the front shoe.

Abstract: Cell membranes containing glycolipid-enriched membrane (GEM) and non-glycolipid-enriched membrane (non-GEM) domains are targeted using fusion proteins that are anchored in the cell membrane. Fusion proteins to target GEM (or non-GEM) domains are comprised of a selected fluorescent polypeptide, a membrane-targeting sequence of p56Lck (or pp60c-Src for non-GEM domains) and a linker inserted between the polypeptide and the membrane targeting sequence. Localization of fusion proteins in GEM and non-GEM domains is assessed using techniques including confocal microscopy, fluorescence-based techniques, and membrane fractionation. Using these techniques, compounds are screened for their effect on GEM and non-GEM domains of live cells. These fusion proteins therefore represent useful tools for studying subcellular trafficking and the function of discrete compartments in the plasma membrane.

Abstract: A tilting trailer suspension which has forwardly disposed, independent swingarms pivotally attached to a trailer main platform and a second u-shaped perimeter frame attached to the rear portion of the swingarms and extending over the swingarms converging at a latching point on the trailer tongue. Each swingarm has a stub axle mounted at its forward end for wheel attachment. A spring is mounted between the forward end of each swingarm and the perimeter frame to provide suspension. Tilting is accomplished by unlatching the u-shaped perimeter frame from the tongue portion of the main frame and raising it so that the swingarms pivot about the connection to the main frame. The rearward end of the trailer platform drops to the ground at a low angle, while the u-shaped perimeter frame assumes an upwardly extending attitude.

Abstract: The present invention provides a method for removing CO.sub.2 from the atmosphere. The method comprises the step of delivering a source of nitrogen to the mixed layer of the ocean to cause an increase in the number of phytoplankton in the mixed layer and thereby increase the amount of photosynthesis carried out by the phytoplankton. The source of nitrogen is delivered to the mixed layer at a location where an ocean current will carry the source of nitrogen and phytoplankton over a region of the ocean having a depth sufficient to allow dead phytoplankton and organic material derived from the phytoplankton to fall from the mixed layer and enable carbon originating from the CO.sub.2 to be sequestered from the atmosphere.

Abstract: A motorcycle stand uses a novel combination of components including a primary capture mechanism that consists of a transverse rod on which are mounted two vertical capture plates that translate inward as the motorcycle tire enters the stand. The capture plates are mounted for rotation orthogonally to the translation concomitantly with a tire contact plate. Translation of the plates is accomplished by the spring action and location of a pair of compressible pivot rods that have one end mounted forward and outward of the main rotation axis of the tire contact plate and the other end affixed to the sides of the capture plates. Forward rotation of the primary capture mechanism results in inward translation of the capture plates until they contact the tire side-wall. Further rotation results in compression of the springs in each pivot rod. A second, upper engagement shoe cooperates to ensure that the tire is fully captured.

Abstract: A method of removing suspended solids from contaminated liquid by the steps of passing the contaminated liquid after the addition of a flocculation agent and dissolved gas as a vortex flow through a tapered upwardly divergent conduit from a conduit entry end to a conduit outlet end. Trapping flocs at the outlet end of the conduit in a depressurised dischargeable chamber which extends into the conduit at the outlet end and is in communication with the liquid in the conduit and simultaneously discharging floc free liquid from a zone between the chamber and the conduit wall defining the conduit outlet end.

Abstract: A method for intimately mixing fluids in a two-stage process is disclosed. The method includes the steps of subjecting a continuous flow of an aggregation of fluids to free vortex flow, having axial and tangential velocity components, and then substantially removing the tangential velocity component to substantially recover the tangential velocity energy so as to provide a discharge flow which is substantially axial.

Abstract: Flexible seals for joints in pipes for example spigots, flange and sleeve joints are disclosed. A ring seal for seating in the seal groove as a pipe joint between a first pipe and a second pipe consists of a ring body, an annular cavity defined by the ring body, a pair of annular sealing lips axially spaced on the ring body and joined by a midportion of the body and a passage through the ring body defines a fluid path from the zone between the sealing lips to a test-orifice in one of the pipes, flanges or sleeve. Various configurations of seals are disclosed.A method of pressure testing the joint is disclosed. A method of charging the joint with root growth inhibiting chemical is disclosed.

Abstract: A mat opening marking device is provided for laying out full line rectangular openings to be cut in picture frame mat material, and the like. A thin, transparent plate member on one side mounts a straight edge member which can be adjusted to various parallel positions to engage an outer edge of the mat material and on an opposite side mounts a marking device support member having a replaceable marking device whose marking point can be arranged to extend through any one of a series of arcuately arranged selected openings in the plate member to engage and mark the four sides of the mat surface opening along the four outer edges of the mat and at predetermined distances inward therefrom.