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:
Dec. 03, 2019
Filed:
Mar. 19, 2018
Shaobin Wang, Xi'an, CN;
Yongqin Wang, Xi'an, CN;
Shaobin Wang, Xi'an, CN;
Yongqin Wang, Xi'an, CN;
Other;
Abstract
An integrated apparatus for precisely and synchronously controlling amounts of discharged hydraulic oil and fluid using a motor, includes a housing. A movable dual-piston extractor, a motor and a plunger pump are configured in the housing and sequentially connected. A hydraulic pipeline and a fluid pipeline are connected with the housing to control flows of hydraulic oil and a fluid. A specified amount of fluid sample can be precisely extracted by precisely controlling, according to a control circuit, the number of rotations of the motor, which is indirectly reflected to a travel distance of the lead screw. A motor indirectly drives a lead screw, a nut and a piston to move linearly along a hydraulic chamber through mechanisms including a transmission shaft, and according to a position where the transmission shaft of the motor rotates, the displacement distance of the piston can be measured precisely.