Patents by Inventor John M. Sapper

John M. Sapper 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: 4507077
    Abstract: A non-drip candle is formed of three layers including a thick low melt point core and a thin outer confining high melt wax layer affixed to the core by a special intermediate layer. The intermediate layer formulation includes a paraffin candle wax in combination with a similar quantity of double pressed stearic acid and a high purity tallow acid in the range of 0.5 to 60% and preferably 5 to 10% by weight. A microcrystalline wax of about 5% increases the melt point and produces a smooth finish to the candle, and a resin of about 1% imparts hardness to the layer to permit processing. The candle burns with a shallow rim confining the wax pool about the wick and the multiple layer construction functions to practically instantaneously heal any breach in the rim as the result of deflection of the flame or physical engagement with the rim to establish a true dripless candle.
    Type: Grant
    Filed: January 25, 1982
    Date of Patent: March 26, 1985
    Inventor: John M. Sapper