US Patent 7197117 Rotating anode X-ray tube and X-ray generator

Patent 7197117 was granted and assigned to Rigaku on March, 2007 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Rigaku

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7197117

Patent Inventor Names

Yuji Kusaka0

Masataka Sakata0

Shiro Umegaki0

Tomohiro Chaki0

Atsushi Hamanaka0

Masahiro Nonoguchi0

Masaru Okazaki0

Date of Patent

March 27, 2007

Patent Application Number

11180190

Date Filed

July 13, 2005

Patent Primary Examiner

‌

Allen C. Ho

Patent abstract

A coolant passage is formed inside the rotary shaft while an air passage is formed inside the casing. A mechanical seal is arranged between the coolant passage and the air passage. Leakage cooling water, which has leaked in the form of vapor from the mechanical seal, is relegated radially outwardly along with air by the action of a rotary vane, which is disposed in the air passage, and finally flows out of an air outlet. A coolant sensor may be provided to early detect the leakage water.