Patents by Inventor Patrick Crawford Jefferys

Patrick Crawford Jefferys 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: 7373755
    Abstract: A safety gate assembly includes a frame which may be secured across a door opening, stairway or the like and comprises a base and two upstanding limbs and a gate. One side of the gate is connected by one or more pivotal connections to the one limb of the frame to permit pivotable movement of the gate with respect to the frame about a pivotal axis. The other side of the gate carries a latch member, which cooperates with a latch connected to the other limb of the frame. The latch defines a locked position, in which pivotable movement of the gate is prevented. The pivotal connection is constructed to permit linear movement of the gate relative to the frame in a direction parallel to the pivotal axis. The latch member cooperates with a biasing spring arranged to urge the latch member in the direction away from the said one side of the gate.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: May 20, 2008
    Assignee: Bettacare Limited
    Inventors: Patrick Crawford Jefferys, Vaughan Stephen Newcombe