Patents by Inventor Donald J. McMullen

Donald J. McMullen 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: 5339466
    Abstract: The cold weather sleeping garment of the instant invention, used in conjunction with a sleeping bag, allows a user to sleep in sub-zero temperatures. The sleeping garment is separate from the sleeping bag but comfortably and snugly fastened to the user. The sleeping garment moves with the body which eliminates claustrophobia and loss of insulating value caused by displacement of the breathing hole away from the nose and mouth area of the user. By virtue of its ability to hug the body of the user and move with the user, the hole stays where placed initially with little or no displacement from the face. The shoulder protection serves to separate the bag into two sections preventing warm air in the bag and surrounding the user from being pushed out of the breathing hole when the user moves. An adaptation of the sleeping garment of the instant invention allows the insertion or removal of additional insulating material which affords the user greater comfort in changing weather conditions.
    Type: Grant
    Filed: January 9, 1992
    Date of Patent: August 23, 1994
    Inventor: Donald J. McMullen