Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 3991764 | Plasma arc scalpel This disclosure relates to a surgical tool that employs a jet of inert gas passed through a direct current electric arc which imparts thermal energy to the gas jet which is then ejected from a small orifice at a temperature sufficient to simultaneously in... | 11/16/1976 |
| 3989512 | Plasma heat treatment means and method A heater assembly comprising cathodic plasma generating means for generating a column of plasma, a plurality of anodic plasma torches the outlets of which are symmetrically disposed about the axis of the column and circuit means for energizing said genera... | 11/02/1976 |
| 3980802 | Method of arc control in plasma arc furnace torches A plasma arc remelting furnace system with improved components including mechanisms for independently vertically feeding and oscillating the metal blank through the top of the furnace. Multiple plasma arc torches (plasmatrons) are installed in a sealed ch... | 09/14/1976 |
| 3977191 | Atomic expansion reflex optics power optics power source (AEROPS) engine An engine is provided which will greatly reduce atmospheric pollution and noise by providing a sealed system engine power source which has no exhaust nor intake ports. The engine includes a spherical hollow pressure chamber which is provided with a reflec... | 08/31/1976 |
| 3962486 | Novel process for applying thermoset resinous coatings A novel process for applying cured thermoset resinous coatings to various kinds of substrates and in particular, to thin metal substrates, is disclosed. Finely divided thermosettable resinous particles containing a solid catalyst are introduced into a reg... | 06/08/1976 |
| 3958883 | Radio frequency induced plasma excitation of optical emission spectroscopic samples In a spectroscopic apparatus, a desolvated aerosol containing sample impurities to be analyzed is introduced into the center of a toroidal shaped plasma which is excited by an inductively coupled radio frequency power oscillator characterized by a single ... | 05/25/1976 |
| 3958097 | Plasma flame-spraying process employing supersonic gaseous streams An improvement in a process for high velocity plasma flame-spraying of a powder onto a workpiece wherein an unlit plasma gas is passed through the nozzle of a plasma flame-spraying gun at a high velocity of at least 90 meters per second and an electric ar... | 05/18/1976 |
| 3953705 | Controlled arc gas heater An arc gas heater includes an injector unit having a chamber into which high pressure gas is introduced in a swirl and a constrictor passage leading from the chamber so that the swirling gas flows downstream through the constrictor passage. A rear tubular... | 04/27/1976 |
| 3950189 | Method for cutting out a work piece by a plasma jet or similar cutting arrangement A method for cutting out work pieces which have similar contours on both sides of an axis of symmetry thereof comprising the steps of scanning the contour of the work piece for developing control signals corresponding to the shape of the work piece, deliv... | 04/13/1976 |
| 3949186 | Method for welding between metallic body and precision tube body A hollow precision-machined body, such as a circular waveguide for transmission of millimeter wavelengths, is welded to a metallic body with minimum distortion of the precision body, by directing a concentrated beam of heat-producing energy such as an ele... | 04/06/1976 |
| 3949188 | Method and apparatus for operating an arc-transfer type torch Disclosed is an improved method and apparatus for operating an arc-transfer type torch having a cathode rod and two coaxial annular bodies. According to this invention an inactive gas is supplied to the annular space between the cathode rod and the inner ... | 04/06/1976 |
| 3947607 | Method for reinforcing pistons A deposit of a reinforcing material is formed on an aluminium alloy piston by spraying one or more regions of the piston with a copper-based material from an electric-arc spray gun which produces molten particles of a heat content sufficient to produce an... | 03/30/1976 |
| 3944412 | Method for recovering metals The disclosure relates to a method and apparatus for recycling, smelting, and refining waste metal material and low grade metal material. A magneto-plasma provides a high temperature for extracting metals. The magneto-plasma is comprised of an alternating... | 03/16/1976 |
| 3944443 | Ultra high temperature chemical reactions with metals A method for treating metals and metal surfaces is disclosed. The method includes the use of a plasma gas generated by an induction plasma system. In one embodiment, a cutting tool, such as a saw blade or razor blade is passed into contact with the plasma... | 03/16/1976 |
| 3940653 | Arc discharge device, in particular a plasma burner An apparatus for feeding a bar electrode to a plasma burner wherein the electrode is advanced and rotated by a roller having its axis inclined at an acute angle relative to the surface of the electrode.... | 02/24/1976 |
| 3940641 | Plasma jet electrode for magnetohydrodynamic generators An anode assembly of an MHD generator has an opening in communication with the generator's main plasma stream. An inert gas is passed between the anode assembly's emitter and a positively biased collector which is in circuit with a load and a cathode emit... | 02/24/1976 |
| 3937917 | Method for producing and heating a plasma Microwave-frequency electromagnetic energy is stored in a superconducting resonant structure. The non-ionized solid material from which the plasma is to be obtained is placed within said structure and this latter is excited by a generator of the klystron ... | 02/10/1976 |
| 3937866 | Process of striking an arc for a plasma beam inside an enclosure and a stick-electrode for carrying out the process A striking process for a plasma beam at high temperature which includes an enclosure between two torches located at opposite sides of the enclosure and outside the enclosure, a stick-electrode introduced lengthwise through a window of one of the torches a... | 02/10/1976 |
| 3936586 | Arc furnaces and to methods of treating materials in such furnaces A plasma arc furnace in which an expanded plasma column is generated between at least one orbiting electrode moving in a substantially circular path and a stationary electrode. The orbiting electrode is directed towards the orbital axis so as to generate ... | 02/03/1976 |
| 3935417 | Welding of copper and iron A method for welding copper or a copper base alloy and iron or an iron base alloy characterized in that an element for enhancing the mutual miscibility of copper and iron and an element for refining the crystal grains of the weld metal is added to weld me... | 01/27/1976 |
| 3935371 | Plasma heated batch-type annealing furnace An apparatus for heat treatment, i.e., annealing or softening, of metal materials in the nature of coiled rod, wire, strip sheet, and the like, utilizes a conventional batch-type furnace with a controlled atmosphere heated by an electric arc source, i.e.,... | 01/27/1976 |
| 3930913 | Process for manufacturing integrated circuits and metallic mesh screens A process step for use in the manufacture of thin film integrated circuits, hybrid circuits and fine metallic mesh screens, to enable the removal of all organics and photoresist material from underlying metallic films without concomitant degradation of th... | 01/06/1976 |
| 3931542 | Method and apparatus for energizing materials in an electric arc An improved apparatus and method for energizing materials in a free-burning electric arc is provided by radially disposing a plurality of anodes around an extension of the cathode axis. The anodes are inclined at an angle ranging from about 45.degree. to ... | 01/06/1976 |
