Patents by Inventor William O. Springer

William O. Springer 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: 7354236
    Abstract: This motorcycle loading and unloading apparatus employs a carriage to which a motorcycle can be attached and a slide body which facilitates the movement of the carriage and attached motorcycle from the ground and into the back of an open pickup truck. The carriage has an attached loading system that aids in unloading the carriage by biasing the carriage towards an unloaded position.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: April 8, 2008
    Assignee: Springer Family Patents Limited Partnership
    Inventor: William O. Springer
  • Patent number: 6302425
    Abstract: A trailer with an extension member pivotally mounts to a hinge attached to the tongue or frame of the trailer. Front and rear retainers bolt and clamp onto the tongue and frame. The extension member is retained by the forward retainer and extends substantially parallel to the trailer tongue and beyond the trailer tongue. The forward end of the extension member includes a receiver element for mounting to the hitch of a towing vehicle and for extending the trailer further behind the towing vehicle. The extension member pivotally swings rearward to the storage position where it is retained for travel.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: October 16, 2001
    Assignee: Springer Family Patents Limited Partnership
    Inventor: William O. Springer
  • Patent number: 5915797
    Abstract: A braking apparatus engages the brakes of a towed vehicle and is actuated by the engaging the brake of the towing vehicle. A pivotally mounted foot pedal engaging member attaches to the floor of the towed vehicle and depresses the brake pedal of the towed vehicle when actuated. A pneumatic cylinder forces the engaging member to depress the brake pedal when air is supplied to the cylinder. Air is supplied from air brakes in the towing vehicle or from another pressurized air source. Air to the pneumatic cylinder matches the force of the towing vehicle if equipped with air brakes, or is controlled by a flow regulator and pressure regulator.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: June 29, 1999
    Assignee: Springer Family Patents Limited Parternship
    Inventor: William O. Springer
  • Patent number: 5586856
    Abstract: A lift apparatus mounts to a vehicle for raising and lowering a storage platform from a position behind the vehicle in a substantially horizontal position to a position above the vehicle in a substantially horizontal position. The lift includes an added wheel assembly and framework at the rear of the vehicle and lift arms which pivot forward and rearward from a lower portion of the added framework. Extensible retractable arm portions drive and retract arms between a lowered and raised position. The platform pivots about the ends of the arms and an end portion and a cross member extending above the rear framework. The platform pivots about the rear framework during a portion of the lowering and raising operation. The lift is also includes an adjustable frame and platform wheels which provide for mounting the lift to a variety of vehicles.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: December 24, 1996
    Inventor: William O. Springer