Title:
HOOD FOR MASK
Document Type and Number:
Japanese Patent JP3809490
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a food for mask, which is excellent in portability and storing property, and easy of handling.
SOLUTION: This hood for mask is equipped with two filter sections which are located in parallel, and an air-discharging valve section which is located under the approximate center between the locations of these filter sections, and has a half-face shape or a full-face shape. In such a hood for mask, an integral stretchable sheet having an opening in which the filter sections are fitted at the location equivalent to the two filter sections is prepared. Then, the hood for mask is constituted in such a manner that a mask can be used under a state wherein the air-discharging valve section is housed in the sheet.
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Inventors:
Fumiwa Tanaka
Yasuhiro Hirao
Yasuhiro Hirao
Application Number:
JP2001339300A
Publication Date:
August 16, 2006
Filing Date:
November 05, 2001
Export Citation:
Assignee:
Koken Co., Ltd.
International Classes:
A62B17/04; (IPC1-7): A62B17/04
Domestic Patent References:
| JP54011597U | ||||
| JP56095066A | ||||
| JP8318002A |
Foreign References:
| US4619254 | ||||
| US2740400 | ||||
| US4579113 |
Attorney, Agent or Firm:
Takehiko Saito
Yasuyuki Hata
Yasuyuki Hata