Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takao Ito
Date of Patent
October 17, 2023
Patent Application Number
16361568
Date Filed
March 22, 2019
Patent Citations
Patent Primary Examiner
CPC Code
Patent abstract
A gas cushion device includes a cylinder, a piston slidably fitted in the cylinder, a gas enclosed in the cylinder to energize the piston, and an oil feeding mechanism configured to feed a lubricating oil to a fitting portion between the cylinder and the piston. The cylinder and the piston are fitted in an interference fit state. The piston is reduced in diameter from an inside of the cylinder toward the outside of the cylinder.
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