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 Title: |
US4498202:
Helmet equipped with ventilator
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Yamamoto, Tamenobu; Higashi-Osaka, Japan
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| Assignee: |
Yamamoto Kogaku Co., Ltd., Higashi, Japan
other patents from YAMAMOTO KOGAKU CO., LTD. (636190) (approx. 59)
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| Published / Filed: |
1985-02-12
/ 1983-02-24
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| Application Number: |
US1983000469246
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| IPC Code: |
Advanced:
A42B 3/24;
A42B 3/28;
Core:
A42B 3/04;
A42B 3/18;
IPC-7:
A42B 3/02;
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| U.S. Class: |
Current:
002/424;
002/171.3;
002/437;
002/906;
Original:
002/424;
002/437;
002/171.3;
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| Field of Search: |
002/171.3,424,410,436,437,6,8,10
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| Priority Number: |
| 1983-02-24 |
US1983000469246 |
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| Abstract: |
A helmet having a shell and a face shield for closing an opening of the shell and equipped with a ventilator for ventilating the space between the face shield and the face of the wearer of the helmet. The air flowing into or out of the space for ventilation forms a stream along the inner surface of the face shield.
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| Attorney, Agent or Firm: |
Armstrong, Nikaido, Marmelstein & Kubovcik ;
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| Primary / Asst. Examiners: |
Nerbun, Peter;
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| Maintenance Status: |
E3 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
None
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First Claim:
Show all 8 claims |
What is claimed is:
1. A helmet having a shell, a face shield at an opening in the shell, a protector portion positionable at the chin of a wearer, and a ventilator located in the protector portion, for ventilating the space between the face shield and the face of the wearer of the helmet, the ventilator comprising a case attached to the shell of the helmet and having an inside opening open to the inside of the face shield and an outside opening communicating with the inside opening and open to the outside the helmet, and air passing means including an electric motor and a fan in the case for causing the air flowing through the space to form a stream along the inner surface of the face shield, wherein the air passing means forms a blower for drawing atmospheric air into the case through the outside opening and supplying the air to the inner surface of the face shield from the inside opening, wherein a clearance is formed at each side end of the face shield between the face shield and the helmet shell to serve as a vent, whereby the air supplied by the blower forms a stream flowing along the inner surface of the face shield and is discharged from the vent.
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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 31 U.S. patent(s) that reference this one
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