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:
Oct. 13, 2026
Filed:
Jan. 25, 2023
Ebara Corporation, Tokyo, JP;
EBARA CORPORATION, Tokyo, JP;
Abstract
The reciprocating pump includes a cylinder having an inflow chamber, a reset chamber, an intermediate chamber, and a pressurizing chamber therein, a piston located in the cylinder, a first seal, a second seal, and a third seal arranged in a gap between an inner surface of the cylinder and an outer surface of the piston, a suction check valve coupled to a suction port, an inlet check valve and an outlet check valve disposed in a piston passage, a discharge check valve coupled to a discharge port, and a leakage discharge check valve coupled to a leakage discharge port of the cylinder. The piston has a communication passage that provides a fluid communication between the piston passage and the intermediate chamber.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile