发明名称 Vacuum actuated door
摘要 A ventilation control door is integrated with a reservoir chamber. The air pressure within the reservoir chamber controls the position of the door to regulate ventilation. As the volume of the reservoir diminishes the door moves in a preferred direction. A restoring spring within the reservoir returns the door to a nominal position.
申请公布号 US5522766(A) 申请公布日期 1996.06.04
申请号 US19950381003 申请日期 1995.01.25
申请人 PHILLIPS PLASTICS CORPORATION 发明人 PETERSON, FRANCIS C.
分类号 B60H1/00;F24F13/14;(IPC1-7):B60H1/24 主分类号 B60H1/00
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