Patents by Inventor Benedict P. Castle

Benedict P. Castle 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: 6161720
    Abstract: The invention is a drinking vessel that keeps coffee or other hot beverages hot, yet readily drinkable. The basic design of the invention is an inner beverage vessel and an outer beverage chamber with an insulator chamber of air between them. There is a small hole in the bottom of the inner beverage vessel which allows the contents to flow into the outer beverage chamber. When the drinker tips the cup to drink, beverage flows from the inner beverage vessel to the outer beverage surrounding the cup and pours out of a mouthpiece. The amount of liquid that fills the outer beverage chamber quickly cools enough to drink, but still remains warm. The insulator chamber keeps the beverage in the inner beverage vessel hot for a longer period of time. The lid for the cup is sealed to keep the contents warm but has a small pinhole to eliminate the build-up of a vacuum.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: December 19, 2000
    Inventor: Benedict P. Castle