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1. 发明授权

US4720128A Magnetic emergency exit door lock with time delay 失效
标题翻译：磁力紧急出口门锁延时
公开(公告)号：US4720128A
公开(公告)日：1988-01-19
申请号：US924475
申请日：1986-10-29
申请人： Emanuel L. Logan, Jr. , Bruce G. Beigel , Michael A. Kelly
发明人： Emanuel L. Logan, Jr. , Bruce G. Beigel , Michael A. Kelly
IPC分类号： E05B65/10 , E05C19/16 , E05C17/56
CPC分类号： E05C19/166 , E05B65/108 , E05B65/1046 , Y10T292/11
摘要： A door mounted in a door frame is held closed by an electromagnet mounted on the door frame which magnet attracts an armature mounted on the door. A switch is mounted adjacent to the electromagnet and is operated by a switch operator mounted on the door. The switch provides a signal indicating that an attempt is being made to open the door, which signal may be used to sound an alarm or start a time delay release. A pair of contacts are also mounted adjacent to the electromagnet and are bridged by the armature to indicate when the armature is properly held by the electromagnet.
摘要翻译：安装在门框上的门由安装在门框上的电磁体封闭，磁铁吸引安装在门上的电枢。开关安装在电磁铁附近，由安装在门上的开关操作器操作。开关提供一个信号，指示尝试打开门，该信号可用于发出警报或开始延时释放。一对触点也安装在电磁铁附近，并被电枢桥接，以指示电枢被电磁铁适当地保持在何处。

2. 发明授权

US4652028A Magnetic emergency exit door lock with time delay 失效
公开(公告)号：US4652028A
公开(公告)日：1987-03-24
申请号：US700867
申请日：1985-02-12
申请人： Emanuel L. Logan , Michael A. Kelly , Bruce G. Beigel
发明人： Emanuel L. Logan , Michael A. Kelly , Bruce G. Beigel
IPC分类号： E05B65/10 , E05C19/16 , E05C17/56
CPC分类号： E05C19/166 , E05B65/108 , E05B65/1046 , Y10T292/0908 , Y10T292/11
摘要： A door mounted in a door frame is held closed by an electromagnet mounted on the door frame which magnet attracts an armature mounted on the door. A switch is mounted adjacent to the electromagnet and is operated by a switch operator mounted on the door. The switch provides a signal indicating that an attempt is being made to open the door, which signal may be used to sound an alarm or start a time delay release. A pair of contacts are also mounted adjacent to the electromagnet and are bridged by the armature to indicate when the armature is properly held by the electromagnet.

3. 发明授权

US4703962A Magnetic door lock with time delay option 失效
标题翻译：磁门锁具有延时选项
公开(公告)号：US4703962A
公开(公告)日：1987-11-03
申请号：US860926
申请日：1986-05-08
申请人： Michael A. Kelly , Bruce G. Beigel , Emmanuel L. Logan, Jr.
发明人： Michael A. Kelly , Bruce G. Beigel , Emmanuel L. Logan, Jr.
IPC分类号： E05B65/10 , E05C19/16 , E05C17/56
CPC分类号： E05B65/108 , E05C19/166 , E05B65/1046 , Y10S292/65 , Y10T292/11
摘要： A magnetic door lock with a time delay option includes an electromagnet mounted on a door frame and an armature mounted on a door. The electromagnet has a pair of laterally spaced slots therein which each have a reed switch therein for monitoring magnetic flux in the electromagnet. When the armature is engaged with the electromagnet, the magnetic flux is at a selected level sufficient to close the reed switches. If, due to tampering or some other reason, the magnetic flux drop does not reach the selected level, at least one of the reed switches will remain open indicating that the armature is not securely engaged with the electromagnet. The door lock also includes separate mounting plates for mounting the electromagnet and armature so that the electromagnet and armature will be properly aligned when mounted. A plunger is provided adjacent the electromagnet for engagement by a block adjacent the armature. When an attempt is made to open the door, the plunger moves thereby sensing the attempt. The plunger negates the need for an electric hinge for carrying current across the gap between the door and door jamb.
摘要翻译：具有时间延迟选项的磁性门锁包括安装在门框上的电磁铁和安装在门上的电枢。电磁铁在其中具有一对侧向间隔开的槽，其中每个具有用于监测电磁体中的磁通的舌簧开关。当电枢与电磁铁接合时，磁通量处于选定的水平，足够关闭簧片开关。如果由于篡改或其他原因导致磁通量下降不达到所选择的水平，则簧片开关中的至少一个将保持打开，指示电枢不能牢固地与电磁铁接合。门锁还包括用于安装电磁铁和电枢的单独的安装板，使得电磁铁和电枢在安装时将被正确对准。靠近电磁铁设置柱塞，用于与靠近衔铁的块接合。当试图打开门时，柱塞移动，从而感测到该尝试。柱塞消除了对电动铰链的需要，用于承载通过门和门侧柱之间的间隙的电流。

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