Title:
CARTRIDGE PISTON HAVING VENT VALVE
Document Type and Number:
Japanese Patent JP2018065127
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a cartridge piston improved and having an exhaust function which provides a large degree of safety by complete exhaust.SOLUTION: A wall body (22) has a shape having two walls of an outer wall (25) and an inner wall (26) with a gap (27) formed between them, the gap being closed at the front end by a wall part (23), the wall part being penetrated by at least one opening (28) led from the front side of the piston to the gap (27) to make air pass through, and a filtration passage (3) being formed between the inner wall (26) and an annular wall part (14), so that air can enter the filtration passage through the gap (27) by turning around the rear end of the inner wall (26) and enter an annular gap (17) through the filtration passage (3) by turning around the front end of the annular wall part (14).SELECTED DRAWING: Figure 1
Inventors:
RITTER FRANK
Application Number:
JP2017203309A
Publication Date:
April 26, 2018
Filing Date:
October 20, 2017
Export Citation:
Assignee:
RITTER GMBH
International Classes:
B05C17/01; F16K24/06
Domestic Patent References:
| JP2008094497A | 2008-04-24 | |||
| JP2010184235A | 2010-08-26 | |||
| JP2010164196A | 2010-07-29 |
Foreign References:
| WO2016041984A1 | 2016-03-24 | |||
| US20110089200A1 | 2011-04-21 | |||
| CN102502060A | 2012-06-20 |
Attorney, Agent or Firm:
Yutaka Tsubaki