Patents by Inventor Stanley D. Hudson

Stanley D. Hudson 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: 6520090
    Abstract: A safety rail system includes a U-bracket for attaching a safety rail to an existing structural member, and an end stop that allows trolleys to be placed on a rail with one hand and removed with two hands, without any removal of bolts and without using any tools. The end stop is in a first position by the force of gravity that prevents a trolley from coming off the end of the rail. When a trolley is to be placed on the rail or removed from the rail, the end stop is pivoted upwards to allow wheels of the trolley to pass below the end stop. The end stop then returns to its normal, lower position, which prevents a trolley from accidentally coming off the end of the rail.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 18, 2003
    Inventor: Stanley D. Hudson
  • Publication number: 20020152921
    Abstract: A safety rail system includes a U-bracket for attaching a safety rail to an existing structural member, and an end stop that allows trolleys to be placed on a rail with one hand and removed with two hands, without any removal of bolts and without using any tools. The end stop is in a first position by the force of gravity that prevents a trolley from coming off the end of the rail. When a trolley is to be placed on the rail or removed from the rail, the end stop is pivoted upwards to allow wheels of the trolley to pass below the end stop. The end stop then returns to its normal, lower position, which prevents a trolley from accidentally coming off the end of the rail.
    Type: Application
    Filed: April 24, 2001
    Publication date: October 24, 2002
    Inventor: Stanley D. Hudson