Patents by Inventor Geoffrey Robinson Tregoning

Geoffrey Robinson Tregoning 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).

  • Patent number: 4109416
    Abstract: A vehicle door arrangement in which a lower edge part of the door is retractable upwards into the main part of the door prior to opening. This ensures that when the vehicle is standing alongside a platform, there is no risk of the bottom of the door fouling the platform. The arrangement is particularly suitable for slide and plug doors which move outwards and then alongside the vehicle when opening. Even if the bottom of the door is normally above the platform, the invention provides an essential safety feature to cope with situations where the vehicle is abnormally depressed, e.g. by excessive loading or suspension failure. Moreover, the invention enables the height of the interior floor of vehicle to be optimised with respect to platform level so as to enhance passenger safety and convenience, whereas with prior art rigid one-piece doors, clearance requirements dictated non-optimum floor heights.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: August 29, 1978
    Assignee: Westinghouse Brake & Signal Co. Ltd.
    Inventors: John Chase Newson, Geoffrey Robinson Tregoning, James Baden Digby
  • Patent number: 4106876
    Abstract: A mounting device is provided for mounting a door to a door supporting mechanism, the device including a mounting member which is slideable in a slot and which projects to be rotatably engageable with an eccentric aperture in a further mounting member which when assembled is itself rotatably located in a further aperture, the arrangement affording easy levelling and positioning adjustment and locking means being provided for locking the members together after such adjustment.
    Type: Grant
    Filed: November 29, 1976
    Date of Patent: August 15, 1978
    Assignee: Westinghouse Brake and Signal Company Limited
    Inventor: Geoffrey Robinson Tregoning