Patent · US Expired

Pier cushioning system

US4884919A · kind A · utility

8Cited by
15References
11Claims
0Family size

Inventor

Key dates

Filing dateFeb 23, 1989
Grant dateDec 5, 1989
Priority date
Expiry dateFeb 23, 2009

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02A30/30
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

A pier cushioning system is disclosed having a contact surface, sliding elements and hydraulic cylinders and apparatus to determine the mass and velocity of a docking vessel and to respond with the necessary counterforce to assist in the docking of the vessel. The mass and velocity determining capabilities utilize a flow and pressure transducer in combination with either a microprocessor or analog electronic circuit to perform the necessary calculations and thus adjust the flow of hydraulic fluid within the hydraulic cylinder in accordance with the force exerted by the docking vessel.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.