公开(公告)号：US4053961A

公开(公告)日：1977-10-18

申请号：US655382

申请日：1976-02-05

申请人： Murray Vincent Wilson ,  Norman Henry Pearce

发明人： Murray Vincent Wilson ,  Norman Henry Pearce

IPC分类号： E05C17/52 ,  F16B47/00 ,  E05F5/00

CPC分类号： F16B47/00 ,  E05C17/525 ,  Y10S16/21 ,  Y10S292/28 ,  Y10T16/62

摘要： Apparatus for holding open a door or similar closure member for a limited period, which may be predetermined, whereupon the door is automatically released and is able to return to its closed position, includes suction means for attachment to the door and/or surface against which the door is to be held in face-to-face relationship. The period of time during which the suction means is active may be determined by means of an air leakage to the suction means, or by means of a spring acting against the suction means.

摘要翻译： 用于在有限时间段内保持打开门或类似的关闭构件的装置，其可以是预定的，于是门被自动释放并能够返回到其关闭位置，包括用于附接到门和/或表面的抽吸装置， 门将以面对面的关系举行。 抽吸装置有效的时间段可以通过向抽吸装置的空气泄漏或通过作用在抽吸装置上的弹簧来确定。