Patents by Inventor Donald R. Coffey

Donald R. Coffey 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).

  • Water skier's safety system
    Patent number: 5114369
    Abstract: A water safety system to be carried on the person of a water skier. The water safety system occupies a minimal packing envelope and includes a signal flag borne by an extendable flag pole. The flag and flag pole assembly are readily accessible to the skier and permit rapid display of the signal flag when a skier enters the water. Weighted floatation devices maintain the signal flag displayed above the water when the pole is unattended.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: May 19, 1992
    Inventor: Donald R. Coffey
  • Water skier's safety system
    Patent number: 4995841
    Abstract: A water safety system to be carried on the person of a water skier. The water safety system occupies a minimal packing envelope and includes a signal flag borne by an extendable flag pole. The flag and flag pole assembly are readily accessible to the skier and permit rapid display of the signal flag when a skier enters the water. Weighted floatation devices maintain the signal flag displayed above the water when the pole is unattended.
    Type: Grant
    Filed: June 30, 1989
    Date of Patent: February 26, 1991
    Inventor: Donald R. Coffey