Patents by Inventor Kevin Allen Bull

Kevin Allen Bull 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).

  • Gas-assisted two-shot injection molding process
    Publication number: 20030205915
    Abstract: A process for injection molding a composite of rigid thermoplastic and soft thermoplastic, the soft thermoplastic including a cavity established with pressurized assist gas or an assist liquid. The process includes the steps of: injecting a hard molten thermoplastic into a first mold chamber; injecting a soft molten thermoplastic into a second mold chamber; establishing communication between the first chamber and the second chamber so that the rigid thermoplastic and soft thermoplastic integrally bond; and injecting an assist fluid into the soft thermoplastic to form a cavity. In a preferred embodiment, the formed composite is an automotive cowl where the rigid thermoplastic forms the rigid body portion of the cowl and the integrally bonded soft thermoplastic forms a compressible bulb seal.
    Type: Application
    Filed: May 27, 2003
    Publication date: November 6, 2003
    Applicant: Cascade Engineering, Inc.
    Inventors: David Anthony Gedritis, Kevin Allen Bull
  • Gas-assisted two-shot injection molding process
    Publication number: 20030206985
    Abstract: A process for injection molding a composite of rigid thermoplastic and soft thermoplastic, the soft thermoplastic including a cavity established with pressurized assist gas or an assist liquid. The process includes the steps of: injecting a hard molten thermoplastic into a first mold chamber; injecting a soft molten thermoplastic into a second mold chamber; establishing communication between the first chamber and the second chamber so that the rigid thermoplastic and soft thermoplastic integrally bond; and injecting an assist fluid into the soft thermoplastic to form a cavity. In a preferred embodiment, the formed composite is an automotive cowl where the rigid thermoplastic forms the rigid body portion of the cowl and the integrally bonded soft thermoplastic forms a compressible bulb seal.
    Type: Application
    Filed: May 27, 2003
    Publication date: November 6, 2003
    Applicant: Cascade Engineering, Inc.
    Inventors: David Anthony Gedritis, Kevin Allen Bull
  • Gas-assisted two-shot injection molding process
    Patent number: 6623688
    Abstract: A process for injection molding a composite of rigid thermoplastic and soft thermoplastic, the soft thermoplastic including a cavity established with pressurized assist gas or an assist liquid. The process includes the steps of: injecting a hard molten thermoplastic into a first mold chamber; injecting a soft molten thermoplastic into a second mold chamber; establishing communication between the first chamber and the second chamber so that the rigid thermoplastic and soft thermoplastic integrally bond; and injecting an assist fluid into the soft thermoplastic to form a cavity. In a preferred embodiment, the formed composite is an automotive cowl where the rigid thermoplastic forms the rigid body portion of the cowl and the integrally bonded soft thermoplastic forms a compressible bulb seal.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: September 23, 2003
    Assignee: Cascade Engineering, Inc.
    Inventors: David Anthony Gedritis, Kevin Allen Bull
  • Gas-assisted two-shot injection molding process
    Publication number: 20030001411
    Abstract: A process for injection molding a composite of rigid thermoplastic and soft thermoplastic, the soft thermoplastic including a cavity established with pressurized assist gas or an assist liquid. The process includes the steps of: injecting a hard molten thermoplastic into a first mold chamber; injecting a soft molten thermoplastic into a second mold chamber; establishing communication between the first chamber and the second chamber so that the rigid thermoplastic and soft thermoplastic integrally bond; and injecting an assist fluid into the soft thermoplastic to form a cavity. In a preferred embodiment, the formed composite is an automotive cowl where the rigid thermoplastic forms the rigid body portion of the cowl and the integrally bonded soft thermoplastic forms a compressible bulb seal.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 2, 2003
    Inventors: David Anthony Gedritis, Kevin Allen Bull