发明授权
- 专利标题: Ventilated helmet with selected weight distribution
- 专利标题(中): 选择配重的通风头盔
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申请号: US701940申请日: 1976-07-02
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公开(公告)号: US4028739A公开(公告)日: 1977-06-14
- 发明人: Richard L. Bell , Matthew J. Lamb
- 申请人: Richard L. Bell , Matthew J. Lamb
- 申请人地址: DC Washington
- 专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人: The United States of America as represented by the Secretary of the Navy
- 当前专利权人地址: DC Washington
- 主分类号: A42B3/22
- IPC分类号: A42B3/22 ; A42B3/28 ; A62B18/04 ; A42B3/00
摘要:
An improved, lightweight helmet and visor assembly suitable for use in higherformance aircraft during flight and ejection, if necessary, of the pilot. A plurality of holes are formed in the forward area of the crown region of the helmet shell beneath a visor guard and along the side edges of the visor guard to relocate the center of gravity of the helmet, reduce the aerodynamic pressure of windblast during ejection, increase stability during high acceleration, increase ventilation and cooling, and increase comfort to the pilot while maintaining the structural integrity of the helmet.
公开/授权文献
- US5639205A Parkable grapple having quick attachment to loader holder 公开/授权日:1997-06-17
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