Patents by Inventor Noel Nicholas

Noel Nicholas 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).

  • Pressure operated electric switch and alarm system using such switch
    Patent number: 4381434
    Abstract: A pressure operated electrical switch and an alarm system for use in hospitals and nursing homes is constructed such that a force is applied to a pressure plate therein. Once the load is reduced below a predetermined value the pressure plate will move under spring influence to close/open a microswitch or electrical contact means. The normal force applied to the pressure plate is the load on the leg of the hospital bed when occupied. If the bed occupant gets out of the bed the load on the pressure plate is reduced below a predetermined value, and the consequent movement of the pressure plate opens/closes the switch means to actuate the alarm.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: April 26, 1983
    Inventor: Noel Nicholas
  • Pressure operated electric switch and alarm system using such switch
    Patent number: 4378476
    Abstract: A pressure operated electrical switch and an alarm system for use in hospitals and nursing homes is constructed such that a force is applied to the upper surface of a leaf spring therein. Once the load is reduced below a predetermined value the leaf spring will move to close/open a microswitch or electrical contact means. The normal force applied to the leaf spring is the load on the leg of the hospital bed when occupied. If the bed occupant gets out of the bed the load on the leaf spring is reduced below a predetermined value and the consequent movement of the leaf spring opens/closes the switch means to actuate the alarm.
    Type: Grant
    Filed: December 18, 1980
    Date of Patent: March 29, 1983
    Inventor: Noel Nicholas
  • Pressure operated electric switch and alarm system using such switch
    Patent number: 4263586
    Abstract: A pressure operated electrical switch and an alarm system for use in hospitals and nursing homes. The switch is constructed such that a force is applied to a pressure plate therein, and once the load is reduced below a predetermined value the pressure plate will move under spring influence to close/open a microswitch or electrical contact means. The normal force applied to the pressure plate is the load on the leg of a hospital bed when occupied. If the bed occupant gets out of the bed the load on the pressure plate is reduced below the predetermined value and the consequent movement of the pressure plate opens/closes the switch means to actuate the alarm.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: April 21, 1981
    Inventor: Noel Nicholas