1
Spescha Gelli Anton: Method of monitoring the electrical behavior of a high-intensity glow discharge for metallurgical processes. Elektrophysikalische Anstalt Bernhard Berghaus, August 1, 1972: US3681662 (7 worldwide citation)

The method of monitoring a circuit for a low discharge wherein the voltage and current of the discharge are compared by the circuit and a Schmitt trigger generates a control signal if the voltage-current relationship indicates unsafe operation.


2
Spescha Gelli: Monitoring circuit for a high-intensity glow discharge for metallurgical processes. Elektrophysikalische Anstalt Bernhard Berghaus, May 18, 1971: US3579029 (6 worldwide citation)

Monitoring circuit for a glow discharge wherein the voltage and current of the discharge are compared by the circuit and a Schmitt trigger generates a control signal if the voltage-current relationship indicates unsafe operation.


3
Klauesler Josef: Method of ionitriding objects made of high-alloyed, particularly stainless, iron and steel. Elektrophysikalische Anstalt Bernhard Berghaus, October 26, 1971: US3616383 (6 worldwide citation)

Nitrogen hardening of workpieces of stainless and acid resistant chrome and chrome-nickel steels, in a glow discharge in a gas, is enhanced by enriching the gas atmosphere with iron. The enriching is done by atomizing iron from a separate electrode arranged in the glow discharge.


4
A method of carrying out industrial processes in a glow discharge. Bernhard Berghaus, November 6, 1957: GB785878-A (6 worldwide citation)

785,878. Coating by sputtering. BERGHAUS, B. Feb. 16, 1954 [Feb. 17, 1953], No. 4499/54. Class 82(2) [Also in Groups XI and XL(a)] Industrial processes such as metallizing, annealing, hardening, nitriding, carburizing, and the production of ammonia, are carried out in a glow discharge using at least ...


5
An improved process for metallising metallic articles by means of cathode disintegration in vacuum. Bernhard Berghaus, April 29, 1940: GB520592-A (4 worldwide citation)

520,592. Coating metals. BERGHAUS, B. Oct. 26. 1938, Nos. 30939 and 30940. Convention dates, Nov. 19, 1937. and Aug. 20, 1938. Drawings to Specification. [Class 82 (ii)] [Also in Group XL] Metal-coated ,articles are heated before, during or after the deposition so that the base portion of the coatin ...


6
Improvements in and relating to light metal pistons and coatings therefor. Bernhard Berghaus, August 1, 1939: GB510404-A (4 worldwide citation)

510,404. Pistons. BERGHAUS, B. Oct. 24, 1938, Nos. 30737, 30738, 30739, 30740, (Convention dates, May 3), 30741 and 30742, (Convention dates, Aug. 20). Drawings to Specification. [Class 122 (i)] [Also in Groups XL and II] Light metal pistons for internal-combustion engines are coated, particularly a ...


7
Johannes Luckan: Arrangement for treating workpieces by corona discharge with short-circuit prevention feature. Ionit Anstalt Bernhard Berghaus, Michael J Striker, November 1, 1977: US04056007 (3 worldwide citation)

Short-circuit prevention is provided in an arrangement for measuring temperatures of workpieces to be nitrided. An electrical potential gradient is established between a workpiece and a container in which the workpiece is accommodated so as to heat the workpiece and concomitantly produce in the circ ...


8
Improvements in or relating to gun-barrels. Bernhard Berghaus, February 15, 1956: GB744753-A (3 worldwide citation)

A method of treating gun barrels comprises using the gun barrel as a cathode, and subjecting it to a glow discharge in an atmosphere of nitrogenous gas to form an iron nitrided surface, the discharge being conducted at a temperature of about 550 DEG to 600 DEG C. and effected by periodical applicati ...


9
Improvements in or relating to methods and apparatus for carrying out processes for the treatment of objects and materials employing electric glow discharges. Bernhard Berghaus, October 24, 1956: GB759694-A (3 worldwide citation)

A method of treating objects and materials, e.g. nitriding steel, with an electric glow discharge comprises periodically varying the electrical energy supply and for the atmosphere in which the discharge takes place, selecting the nature of the variation to be made-for example the current and/or vol ...


10
Bernd Edenhofer: Arrangement for measuring temperatures of workpieces to be treated by glow discharge. Ionit Anstalt Bernhard Berghaus, Michael J Striker, February 14, 1978: US04074140 (2 worldwide citation)

A workpiece to be treated by using glow discharge is mounted in a container which contains a corresponding gas or gas mixture. The container and the workpiece are respectively connected to different terminals of an electrical source, and the resulting electrical potential gradient produces ions whic ...