Patents by Inventor Christopher Morrison Schwab

Christopher Morrison Schwab 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).

  • Zero speed sensing safety latch apparatus
    Patent number: 4076288
    Abstract: A control element for sensing the motion of a movable member within a machine to automatically prevent opening of a cover or guard on the machine when the member is moving. The control element has one of its ends brought into contact with a portion of the movable member and its other end connected to a latching mechanism located adjacent the machine cover. Being an elongated flexible member, the control element moves in response to the movement of the movable member. When the member is stationary, the end of the control element in contact with the movable member causes the control element to become an elongated rigid member to permit the latching mechanism to turn and allow the opening of the cover over the movable member.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: February 28, 1978
    Assignee: Beckman Instruments, Inc.
    Inventor: Christopher Morrison Schwab