Patents by Inventor John T. Costa

John T. Costa 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: 6662879
    Abstract: A combined bulb and vegetable planter which is spring loaded to allow the user to readily remove a plug of soil from the ground, either for the purpose of planting vegetables and disposing of the plug of soil or planting a bulb and returning the plug of soil into the ground and over the planted bulb. In either operation, a plunger or cylinder is pressed into the soil by exerting a force on a foot rest attached to the cylinder or plunger. Extending vertically from the plunger or cylinder is a hollow tubing housing a shaft having a spring disposed about a portion thereof between a spring tension collar and an alien screw for compressing the spring when desired. A gripping handle is provided near the upper end of the vertically extending hollow tubing for the purpose of being gripped by the user of the invention. Extending above this gripping handle is a knob handle with brass plug and alien screw, and further, having a rubber compressions spacer which forms the operating mechanism for the spring.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: December 16, 2003
    Inventor: John T. Costa