Method of making a face mask and applying the face mask to the head
OwnerLawrence J. Liffinventor
Life of this patent
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Abstract
A method is disclosed for making a facial and/or body prosthesis or appliance by means of molding and forming techniques. The material formed into the final prosthesis is a specific material uniquely adapted for the purpose. The material is a closed-cell, cross-linked, polyethylene and is in sheet form having a thickness in the range of from 1/64 inch to 1/4 inch and a density of between 11/2 and 9 pounds per cubic foot. The disclosure also includes the prosthesis per se as well as the method of making up a human face or body with the use of the prosthesis.
Claims13
The method of making a face prosthesis comprising the steps of sculpting a master face mold from a pliable material, locating said master face mold in a container mold and pouring a moldable material about said master face mold to form a transfer mold, removing said transfer mold from said master face mold, pouring a hardenable material into said transfer mold to form a vacuum forming mold having the same configuration as said master face mold, forming holes through said vacuum forming mold and providing a smooth flat surface on said vacuum forming mold opposite the facial configuration of said vacuum forming mold, placing said vacuum forming mold in a vacuum forming apparatus with the smooth flat surface positioned on a platen of the apparatus, positioning a sheet of closed-cell, cross-linked, polyethylene foam close to, but spaced from, the facial configuration of said vacuum forming mold, said sheet of polyethylene foam having a thickness in the range of about from 1/64 inch to 1/4 inch and a density of about between 11/2 and 9 pounds per cubic foot, heating said sheet of polyethylene foam to a temperature of between 350.degree. F. and 450.degree. F. for a time of from 2 to 10 seconds, moving said sheet or polyethylene foam into contact with the facial configuration of said vacuum forming mold, applying a vacuum through the holes and around said vacuum forming mold to draw said sheet of polyethylene into intimate contact with the entire facial configuration of said vacuum forming mold, and maintaining the vacuum for a time sufficient to permanently form said sheet of polyethylene foam into the shape of said facial configuration of said vacuum forming mold.
The method of making a face prosthesis comprising the steps of selecting a mold having a desired facial configuration, positioning a sheet of closed-cell, cross-linked, polyethylene foam close to, but slightly spaced from, said facial configuration of said mold, said sheet of polyethylene foam having a thickness in the range of from 1/64 inch to 1/4 inch and a density of between 11/2 to 9 pounds per cubic foot, heating said sheet of polyethylene foam, contacting said sheet and the facial configuration of said mold and causing said sheet to conform closely to said configuration, maintaining said sheet in contact with the facial configuration of said mold for a time sufficient to permanently form said sheet into the shape of said facial configuration, and thereafter removing the formed sheet from said mold.
The method of making up a human face including the steps of selecting an integral one-piece shell of synthetic resinous material which has been shaped to a configuration to closely conform to the face of a human, said synthetic resinous material of said shell consisting essentially of a closed-cell, cross-linked polyethylene foam and being of a thickness of between 1/64 and 1/4 inch and having a density of between 11/2 and 9 pounds per cubic foot, providing said shell with the desired appearance for said facial configuration, separating said shell to form said facial configuration into a plurality of component parts, fitting each component part to the appropriate portion of a human face, applying an adhesive to the back of the component parts, and affixing the component parts to the appropriate portion of the human face.
The method of making a body prosthesis comprising the steps of sculpting a master mold from a pliable material, locating said master mold in a container mold and pouring a moldable material about said master mold to form a transfer mold, removing said transfer mold from said master mold, pouring a hardenable material into said transfer mold to form a vacuum forming mold having the same configuration as said master mold, forming holes through said vacuum forming mold and providing a smooth flat surface on said vacuum forming mold opposite the configuration of said vacuum forming mold, placing said vacuum forming mold in a vacuum forming apparatus with the smooth flat surface positioned on a platen of the apparatus, positioning a sheet of closed-cell, cross-linked, polyethylene foam close to, but spaced from, the configuration of said vacuum forming mold, said sheet of polyethylene foam having a thickness in the range of about from 1/64 inch to 1/4 inch and a density of about between 11/2 and 9 pounds per cubic foot, heating said sheet of polyethylene foam to a temperature of between 350.degree. F. and 450.degree. F. for a time of from 2 to 10 seconds, moving said sheet of polyethylene foam into contact with the configuration of said vacuum forming mold, applying a vacuum through the holes and around said vacuum forming mold to draw said sheet of polyethylene into intimate contact with the entire configuration of said vacuum forming mold, and maintaining the vacuum for a time sufficient to permanently form said sheet of polyethylene foam into the shape of said configuration of said vacuum forming mold.
The method of making a body prosthesis comprising the steps of selecting a mold having a desired configuration, positioning a sheet of closed-cell, cross-linked, polyethylene foam close to, but slightly spaced from, said configuration of said mold, said sheet of polyethylene foam having a thickness in the range of from 1/64 inch to 1/4 inch and a density of between 11/2 and 9 pounds per cubic foot, heating said sheet of polyethylene foam, contacting said sheet and the configuration of said mold and causing said sheet to conform closely to said configuration, maintaining said sheet in contact with the configuration of said mold for a time sufficient to permanently form said sheet into the shape of said configuration, and thereafter removing the formed sheet from said mold.
Dependencies are inferred from the claim text.