Anti-theft alarm for air powered hand tools
March 3, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRelaxation switch Pressure-responsive security alarm Alarm system sensing and triggering apparatus Alarm device Annunciator apparatus for monitoring electrical connections Mountable product sensor and display stand Anti-theft alarm for displayed garments Electronic security clip device Alarm system Patent #: 5379023 InventorAssigneeApplicationNo. 398361 filed on 03/03/1995US Classes:340/568.4, Specified connector (e.g., phone jack-type plug)200/51.1, Switch closing on coupling separation200/51.16, Push-button switch340/571Alarm on protected articleExaminersPrimary: Swann, GlenAttorney, Agent or FirmInternational ClassG08B 013/14AbstractAn alarm system for securing an air powered hand tool having a threaded female air intake coupling. The alarm sensor has a secured and an unsecured state which is detectable by an alarm system. The alarm sensor includes an sensor housing and an elongate cord containing a first and second conductor extending from the sensor housing for electrical communication with the alarm system. A male coupling is rotatably mounted to the sensor housing and cooperatively threaded to engage the threaded female coupling. A switch is carried by the male coupling and connected between the first and second conductors. The switch is responsive to the relative position of the male coupling with respect to the threaded female coupling. By unscrewing the male coupling from the threaded female coupling, the alarm sensor is placed in the unsecured state. | |
