Patents by Inventor Thomas T. Pfeffer

Thomas T. Pfeffer 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).

  • Mainsail construction facilitating airflow thereover
    Patent number: 4951589
    Abstract: An improved mainsail construction having a barrier extending laterally outward from the mainsail and the mainsail boom to prevent flow of air from the high pressure side to the low pressure side of the sail and thus improve efficiency thereof. The barrier is detachably securable with respect to the mainsail and the mainsail boom such as being capable of being removed and oriented to act as a sail cover or weather protection device.
    Type: Grant
    Filed: August 8, 1989
    Date of Patent: August 28, 1990
    Inventor: Thomas T. Pfeffer