F16J9/061 - CPC Classification Index

ClassID:

151745 ⎘

F16J9/061 - 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 using metallic coiled or blade springs

Sub-classes:

F16J9/062 » {Coiled spring along the entire circonference} 37
F16J9/063 » {Strip or wire along the entire circonference} 13

Recent Application in this class:

20220154824

2022-05-19

Springs for piston ring biasing

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2020-11-26

Fuel pump with independent plunger cover and seal

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2015-08-27

Three-piece oil ring for internal combustion engines, expanding element, and annular element

20130168906

2013-07-04

Helical compression spring for an oil scraper ring of a piston in an internal combustion engine and method for coating a helical compression spring

20110277626

2011-11-17

Rocking piston type compressor

20050224038

2005-10-13

Reciprocating engine