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:
Sep. 08, 2015
Filed:
Sep. 28, 2011
Shulong Wang, Tianjin, CN;
Xianying Tan, Tianjin, CN;
Xiaolin Wang, Tianjin, CN;
Hongguang Zhang, Tianjin, CN;
Yongqing Shi, Tianjin, CN;
Fang Gu, Tianjin, CN;
Shulong Wang, Tianjin, CN;
Xianying Tan, Tianjin, CN;
Xiaolin Wang, Tianjin, CN;
Hongguang Zhang, Tianjin, CN;
Yongqing Shi, Tianjin, CN;
Fang Gu, Tianjin, CN;
Abstract
The disclosure relates to liquid nitrogen pump equipment load testing and experimenting apparatus, and testing and experimenting method thereof, used for oil-gas fields or coalbed methane nitrogen foam fracturing equipment testing. A hydraulic damping apparatus unit and a pressure regulation unit are provided; the hydro-mechanical damping apparatus unit comprises a water tank, a pump unit apparatus, and a pipe manifold system connected in sequence.