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US 5,451,308 AGranted
Electric arc metal evaporator
AssigneeNovatech SA
InventorsLeonid P. Sablev, Anatoly A. Andreev, Sergei N. Crigoriev
Life of this patent
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AssigneeNovatech SA
InventorsLeonid P. Sablev, Anatoly A. Andreev, Sergei N. Crigoriev
Estimating the term…
An electric arc metal evaporator has a cathode (2) extending along its longitudinal axis which is made of an evaporating material and has an evaporation surface extending along its longitudinal axis, and power supply leads (7,8) connected to opposite ends (5,6) of cathode (2) and connected to control switches (10) and (11) which are connected through individual activating members (12,13) to a control unit (14) and a direct current power supply (15) which is also is connected to an anode, and a unit for determining the current position of the cathode spot (16) on the evaporation surface (3) of cathode (2) which is connected to a control unit (14.) The cathode (2) itself can be used as a current position detector (17) and its power supply leads (7,8) serve as the detector (17) power supply leads.
An electric arc metal evaporator having a cathode defining a longitudinal axis, made of an evaporable material and having an evaporation surface along said longitudinal axis, and power supply leads connected to opposite ends of the cathode and connected to control switches which are connected through separate activating members to a control unit and to a direct current power supply which is also connected to an anode, and a circuit for determining the current position of a cathode spot anywhere on the evaporation surface of the cathode, which circuit is connected to the control unit, said circuit for determining the current position of the cathode spot on the evaporation surface of the cathode comprising a detector of current position of the cathode spot anywhere on the evaporation surface of the cathode.
Dependencies are inferred from the claim text.