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公开(公告)号：US5307793A
公开(公告)日：1994-05-03
申请号：US906234
申请日：1992-06-29
Applicant: Gary A. Sinclair , Charles L. Vice , Michael Brumley , Tom McDonald
Inventor： Gary A. Sinclair , Charles L. Vice , Michael Brumley , Tom McDonald
IPC: A62B18/08
CPC classification number: A62B18/08
Abstract: The microphone of a breathing mask such as an aircraft flight crew oxygen mask is disabled during inhalation to prevent transmission of air flow sounds. In the preferred embodiments, selected mechanisms determine when breathable gas has been delivered to the mask and in response, disable the microphone by disconnecting it during this time. In another embodiment, a cover shifts into position over the microphone to prevent or reduce reception of sounds thereby during delivery of gas to the mask.
Abstract translation: 呼吸面罩的麦克风如飞机机组氧气面罩在吸入期间被禁用，以防止气流声音的传播。 在优选实施例中，所选择的机构确定透气性气体何时被传送到面罩，并且作为响应，在此期间通过断开麦克风来禁用麦克风。 在另一个实施例中，盖子移动到麦克风上方的位置以防止或减少声音的接收，从而在将气体输送到面罩期间。
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公开(公告)号：US4892334A
公开(公告)日：1990-01-09
申请号：US321002
申请日：1989-03-09
Applicant: Gary A. Sinclair
Inventor： Gary A. Sinclair
Abstract: A portable clipboard includes an integral storage box for transporting various accessories such as pens, pencils, erasers, rulers, calculators, etc. The writing surface of the clipboard is provided with a spring retaining clip for securing papers and is mounted by a hinge to a shallow rectangular box. In a second embodiment, a battery operated light is secured by a flexible stem on the upper surface of the clipboard and a digital clock is also provided.
Abstract translation: 便携式剪贴板包括用于传送诸如笔，铅笔，橡皮擦，尺子，计算器等的各种附件的整体存储盒。剪贴板的书写表面设置有用于固定纸的弹簧保持夹，并且通过铰链安装到 浅矩形盒。 在第二实施例中，电池操作的光由剪贴板的上表面上的柔性杆固定，并且还提供数字时钟。
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