WILLIAM A DEHOFF
Vehicle Board in Hanover, PA
License number
Pennsylvania MV022168L
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Hanover, PA 17331
Professional information
Method Of Making Molds
US Patent:
4834929, May 30, 1989
Filed:
Mar 3, 1987
Appl. No.:
7/080709
Inventors:
William A. Dehoff - Hanover PA
Hugh T. Dehoff - Hanover PA
Chris A. Dehoff - Hanover PA
Hugh T. Dehoff - Hanover PA
Chris A. Dehoff - Hanover PA
Assignee:
3D Manufacturing, Inc. - Hanover PA
International Classification:
B29C 3912, B29C 3358, B29C 6718
US Classification:
264226
Abstract:
A method of making precision low cost molds by applying a plurality of layers of material to a pattern. The method includes providing a pattern of the part to be formed; orienting the pattern on a surface plate in a molding dam; applying a release coating to the surfaces; applying a thin resin layer to form the mold surface; applying a layer of fiber reinforced tooling resin to the thin resin layer; applying an epoxy-dry plaster bonding layer to the tooling resin; inserting a reinforcement framework into the dam; and applying bulk casting plaster to complete the body of the mold.