×

ROOM STATUS SYSTEM FOR HOTELS

  • US 3,797,009 A
  • Filed: 11/05/1970
  • Issued: 03/12/1974
  • Est. Priority Date: 11/05/1970
  • Status: Expired due to Term
First Claim
Patent Images

1. A signalling system for an institution having a central station and a plurality of locations remote from said central station comprising:

  • a central panel means at said central station including a first and second switch means and a first and second visual indicator means for each said remote location, and a power source;

    a remote panel means located away from said center station including a third switch means and a third visual means for each said remote reporting locations;

    energized by said central power source;

    said signalling system being adapted to report and direct the status at the respective stations in a predetermined sequential order; and

    each of said first, second and third visual indicator means comprising an ionizing gas glow lamp and a control circuit with switch;

    whereby momentary activation of said first switch means momentarily reduces applied voltage at said first lamp to a level below minimum voltage necessary for continued ionization, as well as momentarily increasing applied voltage at said second lamp to a level above the minimum voltage necessary for initial ionization;

    momentary activation of said second switch means momentarily reduces applied voltage at said second lamp to a level below minimum voltage necessary for continued ionization, as well as momentarily increasing applied voltage at said third lamp to a level above the miminum voltage necessary for initial ionization;

    momentary activation of said third switch means momentarily reduces applied voltage at said third lamp to a level below minimum voltage necessary for continued ionization, as well as momentarily increasing applied voltage at said first lamp to a level above the minimum voltage necessary for initial ionization.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×