Hydraulic system for rapid mooring device of offshore operation helicopter and control method

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12179937
SERIAL NO

18341780

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A hydraulic system for a rapid mooring device of an offshore operation helicopter includes a fuel tank, a hydraulic pump, an electric motor, a check valve, a pressure sensor, a filter, an overflow valve, a two-position four-way electromagnetic reversing valve group, a three-position four-way Y type hydraulically operated reversing valve, an stacked double throttle check valve, an stacked internally controlled hydraulic lock, an externally controlled large flow hydraulic lock, a safety valve, a cartridge valve, an energy accumulator, a pneumatic hydraulic pump, a thick and thin parallel single rod hydraulic cylinder, a mechanical claw unlocking cylinder, a centering lock unlocking cylinder and an emergency lock unlocking cylinder. The control method includes routine action control methods such as rapid capture, straightening, rapid release, transverse mechanical locking, and transverse hydraulic locking in a traction process of the helicopter, a safety protection control method, and an emergency action control method.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • YANSHAN UNIVERSITY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ai, Xuezhong Qinhuangdao, CN 1 0
Sun, Zhiguo Qinhuangdao, CN 36 78
Zhang, Zhuxin Qinhuangdao, CN 10 13
Zhao, Dingxuan Qinhuangdao, CN 9 13

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Jun 30, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Jun 30, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jun 30, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00