F16J9/069 - CPC Classification Index

ClassID:

151753 ⎘

F16J9/069 - CPC Classification

Classification description:

Piston-rings, e.g. non-metallic piston-rings , seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging; Rings with a flat annular side rail; Spring expander from sheet metal with a "C"-shaped cross section along the entire circumference

Recent Application in this class:

20210270368

2021-09-02

Multi-piece oil scraper ring with reduced friction

20180187780

2018-07-05

Piston ring for combustion engine

20100164182

2010-07-01

MULTI-PART OIL SCRAPER RING FOR INTERNAL COMBUSTION ENGINES

20080309022

2008-12-18

Two-Part Oil Scraper Ring for Internal Combustion Engines