Patents by Inventor Jeffrey R. Chalfant

Jeffrey R. Chalfant 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: 7703245
    Abstract: A seal system is utilized with flat, rough, and/or ribbed wall surfaces and includes a top dock pad and two substantially parallel side dock pads, which substantially frame a doorway at a loading dock. The dock pads are secured to the wall by a plurality of mounting brackets. The dock pads include a first foam layer coupled to a rear portion of a backing structure. The first foam layer operates to accommodate, or substantially “fill-in”, any surface irregularities of the building wall surface, such as a rough wall texture and rib surfaces, to provide an airtight or substantially airtight seal between the building and the seal structure. The dock pads also include a second foam layer coupled to a front portion of the backing structure. The second foam layer is employed to create an effective seal between the building and a rear portion of a vehicle.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: April 27, 2010
    Assignee: Chalfant Sewing Fabricators, Inc.
    Inventor: Jeffrey R. Chalfant
  • Publication number: 20080289270
    Abstract: A seal system is utilized with flat, rough, and/or ribbed wall surfaces and includes a top dock pad and two substantially parallel side dock pads, which substantially frame a doorway at a loading dock. The dock pads are secured to the wall by a plurality of mounting brackets. The dock pads include a first foam layer coupled to a rear portion of a backing structure. The first foam layer operates to accommodate, or substantially “fill-in”, any surface irregularities of the building wall surface, such as a rough wall texture and rib surfaces, to provide an airtight or substantially airtight seal between the building and the seal structure. The dock pads also include a second foam layer coupled to a front portion of the backing structure. The second foam layer is employed to create an effective seal between the building and a rear portion of a vehicle.
    Type: Application
    Filed: June 5, 2008
    Publication date: November 27, 2008
    Applicant: CHALFANT SEWING FABRICATORS, INC.
    Inventor: JEFFREY R. CHALFANT
  • Patent number: 7383664
    Abstract: A seal system is utilized with flat, rough, and/or ribbed wall surfaces and includes a top dock pad and two substantially parallel side dock pads, which substantially frame a doorway at a loading dock. The dock pads are secured to the wall by a plurality of mounting brackets. The dock pads include a first foam layer coupled to a rear portion of a backing structure. The first foam layer operates to accommodate, or substantially “fill-in”, any surface irregularities of the building wall surface, such as a rough wall texture and rib surfaces, to provide an airtight or substantially airtight seal between the building and the seal structure. The dock pads also include a second foam layer coupled to a front portion of the backing structure. The second foam layer is employed to create an effective seal between the building and a rear portion of a vehicle.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: June 10, 2008
    Assignee: Chalfant Sewing Fabricators, Inc.
    Inventor: Jeffrey R. Chalfant
  • Patent number: 5333424
    Abstract: A loading dock door seal structure wherein compressible members or pads are located adjacent the top and sides of the door to engage the rear end of a truck cargo body that is backed into loading and unloading position. The pads serve to provide a seal, however, they are spaced outwardly away from the wall of the building adjacent the door frame to leave gaps. Brackets are provided at the top and sides of the door frame and secured thereto, but extend outward and have lateral legs parallel to the building wall that serve as a mount for the seal pads. The brackets also have longitudinal legs extending perpendicular to the doorframe and outwardly therefrom in the gap between the pads and the doorframe. Flexible fabric seal strips are secured to the longitudinal legs of the bracket to close the gaps between the pads and the wall building.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: August 2, 1994
    Assignee: Chalfant Sewing Fabricators, Inc.
    Inventors: Jeffrey R. Chalfant, Kenneth Harvey