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. 30, 2025
Filed:
Aug. 21, 2024
Amtai Medical Equipment, Inc., Raleigh, NC (US);
Clay Liang, Raleigh, NC (US);
Chien-Cheng Su, New Taipei, TW;
AMTAI MEDICAL EQUIPMENT, INC., , NC (US);
Abstract
A bidirectional hydraulic hybrid power system containing an externally connected bidirectional manual pump enables easy upgrading from an electrically driven system to a hybrid system driven by either electrical or manual power. It comprises an oil reservoir, a bidirectional pump, a motor, an oil circuit block including a two-pressure valve within it, a first oil tube, a second oil tube, an external bidirectional manual pump system. After removing or rerouting the first and second oil tubes, an external bidirectional manual pump system can easily connect to the oil circuit block, thus making it a hybrid system driven by either electrical or manual power. The bidirectional manual pump system includes a manual switching valve that fully isolates it from the bidirectional pump. Such isolation prevents the system's output pressure and oil supply from instability due to unwanted leaking of pressurized oil, which makes operation easy and efficient.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile