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:
May. 30, 2023
Filed:
Mar. 05, 2020
Applicant:
Kabushiki Kaisha Yaskawa Denki, Kitakyushu, JP;
Inventors:
Hidehiro Yamamoto, Fukuoka, JP;
Shunichiro Ninomiya, Fukuoka, JP;
Hiroki Shimpo, Fukuoka, JP;
Tsuyoshi Ito, Fukuoka, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25J 19/00 (2006.01); A62C 2/04 (2006.01); B25J 9/16 (2006.01);
U.S. Cl.
CPC ...
A62C 2/04 (2013.01); B25J 9/1633 (2013.01); B25J 19/0079 (2013.01);
Abstract
An internal pressure adjustment system includes a gas supply line that supplies incombustible gas to a housing space of a robot, and an exhaust line that exhausts gas from the housing space. The internal pressure adjustment system further includes an on-off valve of a gas pressure driven type that switches between opening and closing of the exhaust line in accordance with the gas supply pressure. The exhaust line is opened in response to an increase in the gas supply pressure and the exhaust line is closed in response to a decrease in the gas supply pressure.