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1. 发明授权

US4286411A Manual balanced door with door closer arm 失效
标题翻译：手动平衡门与门关闭手臂
公开(公告)号：US4286411A
公开(公告)日：1981-09-01
申请号：US073019
申请日：1979-09-06
申请人： Lee Wikkerink , James R. Schinschke
发明人： Lee Wikkerink , James R. Schinschke
IPC分类号： E05D15/30 , E05F3/00
CPC分类号： E05F3/00 , E05D15/30 , E05Y2900/132
摘要： A manually-operable balanced door with improved operating characteristics is mounted to pivot around a guide roller so that a hinge side of the door swings inwardly from a door frame while a latching side of the door swings outwardly from the door frame. A door closer within the header is reversed from its position in a prior construction so that a rotatable closer shaft extends downwardly from a hinge side portion of the door frame header. The check shaft is coupled by a rigid closer arm to the latching side of the door, while the hinge side of the door is supported between upper and lower door pivot arms. A bearing assembly is disposed within a hinge end of the upper pivot arm and encircles a pivot pin that is supported within a cavity in a side jamb, the pivot pin being easily removable for disassembling the door from the door frame.
摘要翻译：安装具有改进的操作特性的可手动平衡的门，以围绕导辊枢转，使得门的铰链侧从门框向内摆动，而门的闩锁侧从门框向外摆动。在集管内的一个门从其在现有结构中的位置反转，使得可旋转的更近的轴从门框集管的铰链侧部分向下延伸。检查轴通过刚性更近的臂连接到门的闩锁侧，而门的铰链侧支撑在上部和下部门枢转臂之间。轴承组件设置在上枢转臂的铰链端内，并且环绕枢轴销，所述枢轴销被支撑在侧梁中的空腔内，所述枢轴销易于拆卸以将门从门框拆卸。

2. 发明授权

US11502686B2 Electrical switch assembly comprising a piezoelectric sensor disposed between parallel mounting plates 有权
公开(公告)号：US11502686B2
公开(公告)日：2022-11-15
申请号：US16161911
申请日：2018-10-16
申请人： Wikk Industries, Inc.
发明人： James R. Krajewski , Josh L. Smith , Lynn M. Kleppin , Brian D. Hawthorne , Franklin Bradley , Randall Remblake
IPC分类号： H01L41/113 , H02N2/18 , H03K17/96 , H03K17/965 , H01H13/02 , H01H13/705
摘要： The present inventors have recognized that an electrical switch for opening doors in buildings, calling elevators, and the like can be improved to require less physical contact, larger activation area, and multiple activation methods, with increased reliability, by utilizing a piezoelectric sensor specifically arranged between rigid, parallel mounting plates in which one of the plates (an inner plate) is rigidly fixed to prevent movement while the other plate (an outer plate) is accessible for receiving physical contact. By rigidly fixing the inner plate, such as by mounting to a wall or bollard, the sensor can react with sensitivity upon an application of less pressure on the outer plate. Such pressure compresses the sensor between the plates to produce an electrical signal. A controller receiving the signal can, in turn, execute to open a door, call an elevator and/or activate a light or sound to provide feedback.

3. 外观设计

USD500658S1 Door activator 失效
标题翻译：门活化剂
公开(公告)号：USD500658S1
公开(公告)日：2005-01-11
申请号：US29161540
申请日：2002-05-29
申请人： Lee Wikkerink , Scott Rajchel
设计人： Lee Wikkerink , Scott Rajchel

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