Abstract: A hydraulic system for a loader backhoe work machine in which a propulsion system has a limited output and the pressure relief for the hydraulic actuation system is at a first level for the loader function in which the machine is moved on the ground and a second higher pressure relief for when the backhoe function is being performed.

Abstract: This invention relates to an apparatus and method of use for a new simply constructed bioreactor made at least partially of gas permeable materials. The bioreactor is useful for culturing cells and tissues in suspension in a liquid nutrient medium with minimum turbulence. The bioreactor may include ports for easy access to the vessel culture, allowing the growth substrate to be varied for optimum performance. A method for culturing cells using the disclosed bioreactor is also described.

Abstract: A microbubble preparation formed of a plurality of microbubbles comprising a first gas and a second gas surrounded by a membrane such as a surfactant, wherein the first gas and the second gas are present in a molar ratio of from about 1:100 to about 1000:1, and wherein the first gas has a vapor pressure of at least about (760-x) mm Hg at 37.degree. C., where x is the vapor pressure of the second gas at 37.degree. C., and wherein the vapor pressure of each of the first and second gases is greater than about 75 mm Hg at 37.degree. C.; also disclosed are methods for preparing microbubble compositions, including compositions that rapidly shrink from a first average diameter to a second average diameter less than about 75% of the first average diameter and are stabilized at the second average diameter; methods and kits for preparing microbubbles; and methods for using such microbubbles as contrast agents.

Abstract: A microbubble preparation formed of a plurality of microbubbles comprising a first gas and a second gas surrounded by a membrane such as a surfactant, wherein the first gas and the second gas are present in a molar ratio of from about 1:100 to about 1000:1, and wherein the first gas has a vapor pressure of at least about (760-x) mm Hg at 37.degree. C., where x is the vapor pressure of the second gas at 37.degree. C., and wherein the vapor pressure of each of the first and second gases is greater than about 75 mm Hg at 37.degree. C.; also disclosed are methods for preparing microbubble compositions, including compositions that rapidly shrink from a first average diameter to a second average diameter less than about 75% of the first average diameter and are stabilized at the second average diameter; methods and kits for preparing microbubbles; and methods for using such microbubbles as contrast agents.

Abstract: A single-ply wound paperboard tube is disclosed as is its forming method. The method comprises applying an adhesive to a paperboard ply having relatively thin longitudinal edges and a relatively thick central portion therebetween, then spirally winding the ply about a mandrel in edge-overlapping relation. Preferably, the thinned edges and the thick central portion of the ply share a common face, and the ply is preferably steam-conditioned to raise its temperature and its moisture content prior to the application of the adhesive.

Abstract: An improvement is disclosed in the method for producing a calcined kaolin clay powder for use in paper manufacture, by the steps of wet beneficiating a kaolin crude, drying the beneficiated crude, milling the dried beneficiated crude to provide a calciner feed, and calcining the feed to destroy the crystallinity thereof and provide an amorphous calcined kaolin powder. According to the improvement, the dried beneficiated crude is milled and classified to provide a calciner feed having substantially no +325 mesh residue, and not greater than 0.0003% by weight +635 mesh residue. This enables lowered abrasion in the calcined powder, and lowered viscocity in the slurried calcined powder product to thereby enable a higher solids slurry.

Abstract: A fiberoptic based sensor for patient care use. The sensor includes a catheter placed transcutaneously into a blood vessel which is connected to an external measuring head. A sensing tip of the catheter includes a pressure sensing element and an oxygen saturation measuring element. Features of the invention include novel tip designs, measuring head features, and approaches for enhancing measurement though correlation of the saturation and pressure readings.

Abstract: An improvement is disclosed applicable to the production of calcined and hydrous kaolins in particulate form. A process and system are disclosed in which the calciner is integrated with a filtration process and a preceding spray dryer by passing the dust-laden calciner hot off-gases to the spray dryer to achieve savings in energy. Waste heat from the calciner, and concomitantly dustlike clay particles carried in the off-gas, are thereby passed to the dryer and subsequently treated and their values recovered.

Abstract: The animal lift frame provides a mechanically adjustable support structure for restraint and skeletal support of an animal undergoing veterinary care. The lift frame includes a generally rectangular frame portion with front and rear beam members connected by a center beam, and right and left side rail members. The center beam carries a slidable counter balance/lifting eye member attachable to a center chain for lifting of the entire apparatus by a common hoist means. A series of adjustable length stabilizer straps extend from a point on this center chain to a fixed or adjustable lifting eye on each of the front and rear beam and right and left rail members. A harness or sling for supporting the underside of the animal is removably secured to the right and left rails.

Abstract: An apparatus (10) particularly suited for use for purposes of effectuating the cutting to length of continuous lengths of relatively thick, soft stock sheet material (14) such as sheets of styrofoam which have a thickness of six inches or greater. The subject apparatus (10) includes a carriage assembly (32) mounted for movement on a support base (16). The carriage assembly (32) is driven by motor means (34) operatively connected thereto. The motor means (34) is operative to cause the carriage assembly (32) to move in a triangular path while undergoing movement in two planes at a speed which varies directly with the speed at which the soft stock sheet material (14) that is to be cut to length in the subject apparatus (10) is fed therethrough. A knife means (68) is supported on the carriage assembly (32) for movement therewith such that as the carriage assembly (32) moves in a triangular path the knife means (68) likewise moves in a triangular path, i.e., down and forward.