Patents by Inventor Richard Ladeira

Richard Ladeira 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).

  • Pneumatic tank truck closure apparatus
    Patent number: 6318402
    Abstract: A closure is movably mounted on the tank top of a pneumatic tank truck. The closure is movable between open and closed positions relative to an opening in the tank top by a pneumatically operated piston. An inflatable seal seals the closure to the tank top when the closure is in open position. Air jets are employed to clean dirt and debris from a guide supporting the closure. All operations can be performed without the driver climbing to the tank top.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: November 20, 2001
    Inventor: Richard Ladeira