Patents by Inventor Les Allen

Les Allen 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).

  • Detection system and method for determining an alarm condition therein
    Patent number: 7482918
    Abstract: A method (300) for determining an alarm condition for a confined space comprises detecting motion or an intrusion (305) in the confined space by a secondary sensor and generating (310) an alarm signal by the secondary sensor in response to detected motion or an intrusion. The method further comprises the steps of determining (315) whether the alarm signal represents a false alarm condition; and inhibiting (325) a primary sensor in response to a determined false alarm condition. The provision of a secondary sensor is used to identify false alarms and inhibit operation of the primary sensor or alarm in response thereto.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: January 27, 2009
    Assignee: May & Scofield Limited
    Inventor: Les Allen
  • Detection system and method for determining an alarm condition therein
    Publication number: 20060192669
    Abstract: A method (300) for determining an alarm condition for a confined space comprises detecting motion or an intrusion (305) in the confined space by a secondary sensor and generating (310) an alarm signal by the secondary sensor in response to detected motion or an intrusion. The method further comprises the steps of determining (315) whether the alarm signal represents a false alarm condition; and inhibiting (325) a primary sensor in response to a determined false alarm condition. The provision of a secondary sensor is used to identify false alarms and inhibit operation of the primary sensor or alarm in response thereto.
    Type: Application
    Filed: January 6, 2006
    Publication date: August 31, 2006
    Inventor: Les Allen