Patents Represented by Attorney, Agent or Law Firm Sacco & Assciates, P.A.
  • Patent number: 6723273
    Abstract: The inventive method concerns a process of transferring resin into reinforcing fiber material used in the manufacture of composite articles. A first step in the method involves positioning at least one layer of the reinforcing fiber material on the surface of an open mold. The reinforcing fiber material typically consists of glass, carbon, linear polyethylene, polypropylene, and polyester fibers. Subsequently, a sealant layer is applied in liquid form over the reinforcing fiber material to create an airtight chamber encapsulating the reinforcing fiber material between the sealant layer and the mold. After the sealant layer is allowed to cure, a vacuum pressure is applied to the airtight chamber to draw resin through the reinforcing fiber material. For example, the resin can be an epoxy, polyester or vinyl ester resin.
    Type: Grant
    Filed: September 11, 2002
    Date of Patent: April 20, 2004
    Inventors: Keith Johnson, Scott Lewit