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:
Aug. 23, 2022
Filed:
Dec. 12, 2019
Applicant:
Citic Dicastal Co., Ltd., Hebei, CN;
Inventors:
Chuan Dai, Qinhuangdao, CN;
Jiansheng Wang, Qinhuangdao, CN;
Yachun Wan, Qinhuangdao, CN;
Yang Han, Qinhuangdao, CN;
Hongyin Zhang, Qinhuangdao, CN;
Bo Tian, Qinhuangdao, CN;
Gang Zhao, Qinhuangdao, CN;
Zhi Chen, Qinhuangdao, CN;
Assignee:
CITIC DICASTAL CO., LTD., Hebei, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 17/20 (2006.01);
U.S. Cl.
CPC ...
B22D 17/203 (2013.01); B22D 17/2038 (2013.01);
Abstract
A punch pin assembly includes a punch rod, a punch pin and a punch pin connection rod connected therebetween. A heat-conducting medium conveying loop is arranged in the punch rod and the punch pin connection rod. The heat-conducting medium conveying loop communicates with the outside of the punch rod separately through a first medium port and a second medium port which are formed in the punch rod.