The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 08, 1991
Filed:
Jul. 20, 1989
Katsuhiro Uehara, Kobe, JP;
Takahiko Ishii, Kobe, JP;
Takao Fujikawa, Kobe, JP;
Kuniaki Kanda, Kobe, JP;
Yutaka Narukawa, Nishinomiya, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
An interlocking device for a HIP equipment that prevents possible damage to the HIP equipment arising from use of a furnace or processing gas in error and can control the oxygen concentration and pressure within the HIP equipment. The device includes a sensor for detecting a concentration of oxygen in the processing gas in a processing gas pipe system. If the sensor detects an excessively high oxygen concentration, a supply side interlocking mechanism closes a valve for the pipe system and disconnects a power source for a furnace in a high pressure vessel. A flow switch is connected to a safety pipe system having a safety device, and a thermocouple is provided for each of the safety and processing gas pipe systems and a relief pipe system. When the flow switch detects processing gas being spouted from the safety pipe system and/or when one of the temperature signals from the thermocouples exceeds a preset value, a relief side interlocking mechanism closes the processing gas pipe system, opens the relief pipe system, stops a gas compressor and disconnects the power source.