In a device of the plasma scalpel type (40, 41) including at least two spaced-apart electrodes (21, 22) subjected to electrical potential differences such that electric arcs take place therebetween, together with structures for producing at least one fluid flow passing through a region of space where said electric arcs occur, the potential differences being alternating potential differences at medium or high frequency, the ends of said electrodes are substantially filiform and forming an angle t...

Disclosed herein is an electrode which may be used in plasma cutting torches which has a superior service life over similar electrodes found in the prior art, due to a design which improves cooling of the electrode, and which allows advancement and resurfacing of the electrode insert.

A plasma plug for use with an ignition system with improved plasma jet emmision is disclosed. The plasma plug comprises a threaded shell for engagement with an internal combustion engine, an annular ground electrode structurally integral with the shell, an insulator mounted therein, and a center electrode seated within the insulator. The center electrode and the insulator both have firing ends, the former of which is short of the latter and in spark gap relationship with the ground electrode. Th...

Novel plasma expander which consists of a refined pullulan having a narrow molecular weight distribution falling within the range of from 30,000 to 90,000; preparation of said plasma expander in a form suitable for intravenous injection in surgical operation and prevention of hemorrhage; and isolation of said refined pullulan from the conventional pullulan which possesses the molecular weight distribution broader than that mentioned above.

An Atomic Fusion Device wherein a laser beam is focused to the center of a spherical reaction chamber having a mirrored inner surface. The spherical reaction chamber is evacuated and surrounded by a concentric lithium jacket which is surrounded by a concentric cryogenic jacket in which is immersed a multiaxis Ioffe bar system. A mixture of deuterium and tritium plasma is continuously introduced into the reaction chamber at a metered rate through the preheat units and compressed at the center of ...

A plasma generator comprises a discharge chamber provided with a means for introducing a plasma-forming medium and associated with a cathode assembly and an anode assembly. The latter includes at least two plasmatrons each having a hole for an inlet for the plasma-forming medium and being provided with an end electrode and an auxiliary hollow electrode. These electrodes are connected to an arc discharge initiating system. The exit openings of the auxiliary electrodes communicate with the dischar...

A method of sterilizing plasma or plasma fractions, including fractions that contain the blood-coagulating Factor VIII by treatment with .beta.-propiolactone or ultraviolet radiation. Treatment with tri-n-butyl phosphate and sodium cholate or Tween 80 is carried out either prior to or simultaneously with the .beta.-propiolactone treatment or ultraviolet radiation.

A filter comprising a filter housing with an interior within which between two closure members filter membranes in the form of hollow fibers are disposed. Between the hollow fibers a free flow space remains to which are connected two connecting pieces disposed inclined on the housing. Through said connecting pieces blood is supplied to the interior so that a filtration from the outside to the inside into the hollow fibers is possible. This and the arrangement of the connecting pieces gives an ex...

Plasma generator which is constructed and operated to provide an enhanced probability of collisions between charged and neutral particles in the working chamber together with enhanced energy transfer and uniformity of the plasma. The plasma generator includes a chamber (1) with means to produce electrons (5) and to cause the electrons to rotate and spiral (6,7) to produce ion of gases introduced into the chamber to produce a plasma. The plasma is contained by magnetic mirrors (10,11) at each end...

A plasma torch comprises an electrode secured to a liquid-cooled electrode holder and formed with a flow passage communicating with a central outlet for delivering an ionizable gas and a nozzle body which surrounds the electrode and serves to conduct gas along the outside surface of the electrode. To permit an increase of the torch power, the central outlet communicating with the flow passage constitutes a diffuser. The outlet opening of the diffuser is axially spaced from the nozzle body.