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1. 发明授权

US4422068A Intrusion alarm system for preventing actual confrontation with an intruder 失效
标题翻译：入侵报警系统，防止与入侵者的实际对抗
公开(公告)号：US4422068A
公开(公告)日：1983-12-20
申请号：US275734
申请日：1981-06-18
申请人： John M. Helft , Walter O. Noyes
发明人： John M. Helft , Walter O. Noyes
IPC分类号： G08B13/00 , G08B29/00
CPC分类号： G08B13/00
摘要： An intrusion detection system is specifically designed to avoid actual confrontation within a protected premises between a returning occupant and an intruder. The system forewarns a returning owner or occupant, before entering the premises, that an intrusion has occurred by providing a signal visible from the outside of the premises. In this manner, the owner is alerted to the possibility that an intruder may still be present within the premises, and confrontation is avoided. The system includes a test mode operable from outside the protected premises to determine if the system has been tampered with by an intruder. If no intrusion signal is observed by the returning owner, he must still test the system to ascertain if the absence of the intrusion signal is a result of no intrusion, or if it is the result of an intruder having tampered with the system, by for example, removing its power supply. An "all clear" signal observable from the outside of the premises indicates that the system is in working order and has not been tampered with or otherwise dismantled during the owner's absence.
摘要翻译：入侵检测系统专门设计用于避免在返回的乘客和入侵者之间的受保护的场所内的实际对抗。该系统在进入房屋之前预先警告返回的所有人或乘客，通过提供从房舍外部可见的信号，发生入侵。以这种方式，业主被告知入境者仍然可能在场所内存在的可能性，并且避免了对抗。该系统包括可从受保护的房屋外部操作的测试模式，以确定系统是否被闯入者篡改。如果返回所有者没有观察到入侵信号，他仍然必须对系统进行测试，以确定入侵信号的不存在是否是入侵信号的结果，或者是入侵者是否已经被系统篡改的结果，例如，取下电源。从房屋外面观察到的“一切清晰”信号表明系统处于工作状态，并且在业主不在场的时候没有被篡改或以其他方式拆除。

2. 发明授权

US4290059A Liquid level alarm for remotely indicating when less than a predetermined quantity of fuel oil remains in a storage tank and method for installing the same 失效
标题翻译：用于远程指示储存罐中少于预定量的燃料油的液位报警器及其安装方法
公开(公告)号：US4290059A
公开(公告)日：1981-09-15
申请号：US138163
申请日：1980-04-07
申请人： Walter O. Noyes , John M. Helft
发明人： Walter O. Noyes , John M. Helft
IPC分类号： G01F23/64 , G08B21/00
CPC分类号： G01F23/64
摘要： The present invention provides an improvement by adaptation of a rising stem fuel oil gauge for indicating, at a remote location, the quantity of fuel in oil storage tanks commonly used in homes and businesses. The improvement includes a magnet carried on a horizontally positioned level indicating disc, which is attached to the upper end of a vertically rising stem and enclosed within a transparent tube. Markings on the tube correspond to the quantity of fuel oil within the storage tank and the alignment of the indicating disc with a specific marking indicates the fuel oil quantity at any given time. A magnetically actuated reed switch is mounted to the exterior of the tube at a predetermined position, and a power supply and remote alarm are coupled to the switch. When the level of the indicating disc is near the position at which the switch is mounted, the magnet carried on the disc actuates the switch which in turn actuates the remote alarm. The system thus provides an alarm when the quantity of fuel within the storage tank corresponds to that predetermined quantity corresponding to the level at which the magnetic switch is mounted on the tube.
摘要翻译：本发明通过适应上升杆燃料油表来提供改进，用于在远程位置指示在家庭和企业中常用的储油罐中的燃料量。该改进包括一个承载在水平定位的水平指示盘上的磁体，其附接到垂直升起的杆的上端并且封闭在透明管内。管上的标记对应于储罐内的燃油量，具有特定标记的指示盘对准表示任何给定时间的燃油量。磁力驱动的簧片开关在预定位置安装到管的外部，并且电源和远程警报耦合到开关。当指示盘的高度靠近安装开关的位置时，盘上携带的磁体驱动开关，开关又致动远程报警。因此，当存储箱内的燃料量对应于对应于磁开关安装在管上的水平的那个预定量时，该系统提供报警。

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