Patents by Inventor James R. Burkhart

James R. Burkhart 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: 6454083
    Abstract: An impact cradle for supporting a moving conveyor belt. The impact cradle includes a plurality of support structures. Each support structure includes an elongate support member and first and second wing cushion support members for supporting impact bars. Each wing cushion support member includes a first end including a plurality of apertures and a second end including a plurality of apertures. Each aperture in the first end of a wing cushion support member is spaced apart a uniform distance from a counterpart aperture in the second end of the wing cushion support member. A first fastener and a second fastener are inserted respectively through a selected pair of counterpart apertures to connect the first and second ends of the wing cushion support member to the support member. Each pair of counterpart apertures is adapted to dispose the wing cushion support member at a selected inclined angle with respect to the support member to conform to the inclined edges of the conveyor belt.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: September 24, 2002
    Assignee: Martin Engineering Company
    Inventors: James R. Burkhart, Corey A. Noord, Gary D. Swearingen
  • Patent number: 6443294
    Abstract: A tensioner device for imparting a rotational biasing force to the shaft of a conveyor belt cleaner. The tensioner device includes a biasing member wherein a first end of the biasing member includes a first coupler member and a second end of the biasing member includes a second coupler member. The second end of the biasing member is adapted to be inserted into a bore in the shaft of the conveyor belt cleaner such that the second coupler member rotationally couples the second end of the biasing member to the shaft. The tensioner device includes a rotatable actuator member having a recess adapted to receive the first end of the biasing member. A lug extends inwardly into the recess and is adapted to engage the first coupler member of the biasing member such that the first end of the biasing member is rotationally coupled to the actuator member for conjoint rotation at least in one rotational direction.
    Type: Grant
    Filed: September 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Martin Engineering Company
    Inventors: Steven E. Brody, James R. Burkhart
  • Publication number: 20020011400
    Abstract: An impact cradle for supporting a moving conveyor belt. The impact cradle includes a plurality of support structures. Each support structure includes an elongate support member and first and second wing cushion support members for supporting impact bars. Each wing cushion support member includes a first end including a plurality of apertures and a second end including a plurality of apertures. Each aperture in the first end of a wing cushion support member is spaced apart a uniform distance from a counterpart aperture in the second end of the wing cushion support member. A first fastener and a second fastener are inserted respectively through a selected pair of counterpart apertures to connect the first and second ends of the wing cushion support member to the support member. Each pair of counterpart apertures is adapted to dispose the wing cushion support member at a selected inclined angle with respect to the support member to conform to the inclined edges of the conveyor belt.
    Type: Application
    Filed: June 22, 2001
    Publication date: January 31, 2002
    Inventors: James R. Burkhart, Corey A. Noord, Gary D. Swearingen
  • Patent number: 5853160
    Abstract: An aerator valve assembly adapted to provide selective fluid communication between a supply of pressurized gas and a pressure vessel and adapted to provide selective fluid communication between the pressure vessel and a bulk material handling structure. The valve assembly includes a valve housing including a valve body, an end cap adapted to be connected to the supply of pressurized gas, and a piston seat having an outlet port adapted to provide fluid communication with the bulk material handling structure. The valve body includes a port adapted to provide fluid communication with the pressure vessel. A piston is located within a chamber of the valve body between the end cap and the piston seat. The piston is selectively slidable between an extended position wherein the piston creates a metal-to-metal seal with the piston seat to seal the outlet port closed and a retracted position wherein the seal is broken.
    Type: Grant
    Filed: December 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Martin Engineering Company
    Inventors: Jason R. Hurdis, James R. Burkhart