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. 18, 2021
Filed:
Jan. 14, 2020
South China Company, China Oil & Gas Pipeline Network Corporation, Guangzhou, CN;
Xi'an Aerospace Yuanzheng Fluid Control Co. Ltd, Xi'an, CN;
Zhongshan Tian, Guangzhou, CN;
Jun Yuan, Xi'an, CN;
Shaochuan Lai, Guangzhou, CN;
Bo Wang, Xi'an, CN;
Changqun Yang, Guangzhou, CN;
Yulong Feng, Xi'an, CN;
Long Zhong, Guangzhou, CN;
Zhenning Yang, Xi'an, CN;
South China Company, China Oil & Gas pipeline Network corporation, Guangzhou, CN;
Xi'an Aerospace Yuanzheng Fluid Control Co. Ltd, Xi'an, CN;
Abstract
A four valve disc frictionless ball valve includes a spherical valve core assembly, wherein the spherical valve core assembly includes a wedge-shaped valve core. A closed-position valve disc is respectively installed on a pair of closed-position wedge-shaped sides. A closed-position guide key is respectively arranged at the middle positions of the pair of closed-position wedge-shaped sides along an axial direction. A closed-position guide groove is arranged on each closed-position valve disc along the axial direction. An open-position valve disc is respectively installed on a pair of open-position wedge-shaped sides. An open-position guide key is respectively arranged at the middle positions of the pair of open-position wedge-shaped sides along the axial direction. An open-position guide groove is arranged on each open-position valve disc along the axial direction.