Patents by Inventor Andrew Dexter Baker

Andrew Dexter Baker 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).

  • Control system for pressure-sensitive protective devices
    Patent number: 6420974
    Abstract: A control for use with pressure-sensitive devices, such as in a machine-guarding application. A plurality of pressure-sensitive devices, such as pressure-sensitive safety mats, are operatively connected to produce a disable signal and a status signal. An activation module produces a switching output responsive to the disable signal and the status signal to disable a machine. In one embodiment the status signal is produced by a comparator in response to a quantity selector and a quantity indication signal produced by the pressure-sensitive devices. In the preferred embodiment, the control system of the present invention is able to detect proper safety mat configuration, whether a threshold pressure is being applied to a pressure-sensing region in the plurality of safety mats, and whether the quantity of operatively coupled safety mats conforms to the quantity specified to be deployed.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: July 16, 2002
    Assignee: Honeywell Data Instruments Inc.
    Inventors: Andrew Dexter Baker, Luis Filipe Travassos