Shredding apparatus for reducing material by use of cutter discs mounted on each of a pair of spaced shafts which place the cutter discs in an interleaved operating position over a perforated grate which has active surfaces swept by the cutter discs, and a controllable drive for oscillating the grate so the normally inactive surfaces of the grate are also swept by the cutter discs.

A cannula assembly for use in conjunction with endoscopic surgical techniques includes a cannula, a housing mounted on one end of the cannula, and a variable interior dimension cannula valve assembly in the housing. The variable interior dimension cannula valve assembly includes a flexible tubular member having a distal portion affixed to the housing, an intermediate portion capable of changing in...

INSTRUMENT FOR INSERTING A PROTECTIVE SLEEVE INTO THE MEDULLARY CANAL OF A BONE In accordance with the present invention, an instrument for surgically implanting a protective sleeve for a flexible small bone joint replacement prostheses, such as a finger joint, is provided. The instrument comprises a handle having a central axis with opposed proximal and distal ends, wherein the distal end of the ...

A small diameter wire guide (10) for medical procedures. The wire guide includes a mandrel (11) of metallic superelastic material, such as nitinol, having a diameter less than 0.020 inches and which completes its transformation to austenite at a temperature of about 14 DEG C. The mandrel has a constant diameter over a majority of its length and includes a number of tapered portions (14,16); and re...

A process for the production of variant microorganisms, in particular parasites for homeothermic animals which are of attenuated virulence is described.

A method and device for particle agglutination assay comprises migrating particles coated with a reagent specific to an analyte through a porous medium. If the analyte to be detected is present in a sample zone of the medium, the particles became immobilized by a complex formation reaction. A positive result is indicated by the development of an optically distinguishable area in the sample zone pr...

The mechanical hand that is the subject of the invention provides for a suitable mechanical grab 1 to seize the feed head at the centre of the pressing machine in order to carry it out of the machine, thereby unloading the part to a previously recorded distance "X". (fig. 1)

The prefabricated component (1) for building staircases comprises a supporting element (2) made of foamed plastic material which extends longitudinally and is cut in the shape of steps (3) along one of its upper surfaces. The supporting element is provided with a plurality of longitudinal holes (7) which are meant for the insertion of respective metallic reinforcement frames (8,9) and are suitable...

A device for sequentially stretched straightening a tube and bending same into a U-shape. The device includes a track for guiding a tube. A hold clamp is fixedly positioned on the track. A feed clamp is movably positioned on the track. A feed clamp is movably guided along the track between a first position adjacent the hold clamp and a second position at a stop mechanism. The stop mechanism is rec...

24 ASPIRATION CAP FOR DISPENSING BLOOD OR OTHER FLUIDS FOR DIAGNOSTIC PURPOSES A dispenser cap for use with a fluid container having an aperture through a flexible portion of a stopper closing the mouth of the container comprises a main body portion and a fluid communicating spike extending through the body portion. The spike has an outer diameter of sufficient size to form a seal with and to perm...

A programmable cooking system has a programming mode for reading an identifying code on a food product and for storing a user selected recipe as a function of the code. The system also has a cooking mode for reading an identifying code on a food product and for recalling and implementing a recipe stored for the code during the programming mode. The system includes an optical code reader for readin...

The amount of N2O in flue gases discharged from a fluidized bed combustion system is minimized by adding an N2O decomposing catalyst in a reactor stage downstream of the combustor. The catalyst preferably is a calcium based sorbent, such as CaO or limestone, although NiO and other catalysts also may be utilized. Typically, the N2O decomposition takes place without increasing the temperature of the...

The plate material to be puttied is placed with its one surface on a conveyor and fed in between the conveyor and a press mat on the other side of the plate material. Putty is applied over the whole plate material at a point before the plate goes into press engagement under the press mat. - The press mat is pressed with such a pressure against the plate that all the putty located on fault free par...