Title:
CLEANER
Document Type and Number:
WIPO Patent Application WO/2022/131036
Kind Code:
A1
Abstract:
A cleaner (1A) includes: a cylinder (2) supplied with cleaning fluid from the outside; a piston (3) stretchably provided in the cylinder (2); a nozzle (4) for jetting the cleaning fluid; and a sealing part (5) for controlling, in the cylinder (2), the flow of the cleaning fluid from the cylinder (2) to the piston (3). The piston (3) may change between a first state of being fully shrunk with respect to the cylinder (2), a second state of being fully stretched with respect to the cylinder (2), and a third state of being transitable between the first and second states. The sealing part (5) controls the flow of the cleaning fluid from the cylinder (2) to the piston (3) in the first state and does not control the flow of the cleaning fluid from the cylinder (2) to the piston (3) in the second and third states.
Inventors:
MATSUNAGA TAKAHIRO (JP)
SAKAI MASARU (JP)
SAKAI MASARU (JP)
Application Number:
PCT/JP2021/044580
Publication Date:
June 23, 2022
Filing Date:
December 03, 2021
Export Citation:
Assignee:
KOITO MFG CO LTD (JP)
International Classes:
B60S1/52; B05B1/30; B08B3/02; B60S1/46; B60S1/56; B60S1/62; F21S45/00
Foreign References:
| JP2003526555A | 2003-09-09 | |||
| US2939249A | 1960-06-07 | |||
| US20130240569A1 | 2013-09-19 | |||
| US3637139A | 1972-01-25 | |||
| US3263929A | 1966-08-02 | |||
| JPH0632206A | 1994-02-08 |
Attorney, Agent or Firm:
SHIN-EI PATENT FIRM, P.C. (JP)
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