F04B39/045 - CPC Classification Index

ClassID:

142987 ⎘

F04B39/045 - CPC Classification

Classification description:

Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups -; Measures to avoid lubricant contaminating the pumped fluid sealing for a reciprocating rod Labyrinth-sealing between piston and cylinder

Recent Application in this class:

20220120347

Rod packing

20210025378

Piston seal structure for injector

20200102946

Seal assembly for reciprocating compressor

20180274527

LABYRINTH SEALS FOR COMPRESSOR

20170218935

HOUSING UPPER PART OF A LABYRINTH PISTON COMPRESSOR AND METHOD FOR COOLING SAME, AND LABYRINTH PISTON COMPRESSOR

20140369858

Device and method for preparing liquified natural gas (LNG) fuel

20120156005

BUFFER AIR FOR A LABYRINTH SEAL

20110277626

Rocking piston type compressor

20110103976

Device and method for preparing liquefied natural gas (LNG) fuel