Patents by Inventor Jon E. Kurahara

Jon E. Kurahara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Plunger-operated alarm switch assembly
    Patent number: 5656982
    Abstract: A plunger-operated alarm switch assembly (10) provides without visual inspection thereof an indication of whether a barrier (14) is in a secure position or whether the alarm switch assembly has been tampered with. A preferred embodiment includes a plunger housing (18) that is matable to a switch plate (20). The plunger housing supports a movable plunger (22) having a permanent magnet (24) that produces a magnetic field (26). The switch plate supports a magnetically actuatable reed switch (28) positioned in a predetermined relative alignment to a guide path (32) of the plunger when the plunger housing and the switch plate are matably fitted together.
    Type: Grant
    Filed: August 10, 1995
    Date of Patent: August 12, 1997
    Assignee: Sentrol, Inc.
    Inventor: Jon E. Kurahara