Patents by Inventor B. Keith Thomas

B. Keith Thomas 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: 9340362
    Abstract: A conveyor with enhanced cleanability includes a belt for conveying objects above a floor and having a forward run and a return run. A conveyor bed for supporting the belt provides an upper support for supporting the forward run of the belt and a lower support for supporting a return run of the belt. The upper support is adapted for moving toward and away from the lower support, including when the conveyor belt is sectioned into first and second portions corresponding to the forward run and the return run. A conveyor is also mounted in a cantilevered fashion, such as by embedding posts in a curable material forming a base for supporting the conveyor. Related methods are also disclosed.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: May 17, 2016
    Assignee: SPAN TECH LLC
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Scott Dayton Barbour
  • Publication number: 20150284187
    Abstract: A conveyor with enhanced cleanability includes a belt for conveying objects above a floor and having a forward run and a return run. A conveyor bed for supporting the belt provides an upper support for supporting the forward run of the belt and a lower support for supporting a return run of the belt. The upper support is adapted for moving toward and away from the lower support, including when the conveyor belt is sectioned into first and second portions corresponding to the forward run and the return run. A conveyor is also mounted in a cantilevered fashion, such as by embedding posts in a curable material forming a base for supporting the conveyor. Related methods are also disclosed.
    Type: Application
    Filed: July 9, 2012
    Publication date: October 8, 2015
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Scott Dayton Barbour
  • Patent number: 8727109
    Abstract: An apparatus for conveying one or more objects along a conveying path in a conveying direction includes an endless conveyor chain formed of modular links arranged in rows in a direction transverse to the conveying direction. The links include spaced outer side links forming a part of a conveying surface for the objects to be conveyed and intermediate links interconnected with side links by connector rods, the chain having at least a forward run for conveying one or more objects in the conveying direction. A driver is provided for driving the conveyor chain, and includes a first sprocket adapted for engaging at least one side link along at least one side of the chain, the first sprocket mounted for rotation about an axis generally orthogonal to the conveying direction and the transverse direction. The sprocket may comprise a split sprocket, and may be adapted for pivoting movement.
    Type: Grant
    Filed: November 13, 2012
    Date of Patent: May 20, 2014
    Assignee: Span Tech LLC
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Michael Seiler, Stephen C. Fye
  • Publication number: 20130068595
    Abstract: An apparatus for conveying one or more objects along a conveying path in a conveying direction includes an endless conveyor chain formed of modular links arranged in rows in a direction transverse to the conveying direction. The links include spaced outer side links forming a part of a conveying surface for the objects to be conveyed and intermediate links interconnected with side links by connector rods, the chain having at least a forward run for conveying one or more objects in the conveying direction. A driver is provided for driving the conveyor chain, and includes a first sprocket adapted for engaging at least one side link along at least one side of the chain, the first sprocket mounted for rotation about an axis generally orthogonal to the conveying direction and the transverse direction. The sprocket may comprise a split sprocket, and may be adapted for pivoting movement.
    Type: Application
    Filed: November 13, 2012
    Publication date: March 21, 2013
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Michael Seiler, Stephen C. Fye
  • Publication number: 20110061997
    Abstract: In one aspect, a modular link conveyor chain including slats is capable of assuming a compressed and an expanded condition so as to permit side-flexing while moving along a forward run and a return run in an endless path. The chain is formed of links arranged in rows spaced apart in the conveying direction, the links of a first row including aligned apertures and the links of a second row including oversized apertures, such as slots, for aligning with the aligned apertures of the links in the first row. A first connector is associated with the corresponding apertures to interconnect the first and second rows of links. At least one elongated slat is mounted to the connector. The slat may be mounted for pivoting movement between a first position forming at least part of a conveying surface along the forward run, and a second position along the return run.
    Type: Application
    Filed: November 19, 2010
    Publication date: March 17, 2011
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Mark D. Russell
  • Patent number: 7841462
    Abstract: In one aspect, a modular link conveyor chain including slats is capable of assuming a compressed and an expanded condition so as to permit side-flexing while moving along a forward run and a return run in an endless path. The chain is formed of links arranged in rows spaced apart in the conveying direction, the links of a first row including aligned apertures and the links of a second row including oversized apertures, such as slots, for aligning with the aligned apertures of the links in the first row. A first connector is associated with the corresponding apertures to interconnect the first and second rows of links. At least one elongated slat is mounted to the connector. The slat maybe mounted for pivoting movement between a first position forming at least part of a conveying surface along the forward run, and a second position along the return run.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: November 30, 2010
    Assignee: Span Tech, LLC
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Mark D. Russell
  • Patent number: 7690496
    Abstract: A diverter is for intended use in connection with a diverter conveyor for diverting articles moving in a conveying direction from a first path of travel to a second path of travel. The diverter includes a guide mounted for relative movement thereto from a first position adjacent one side of the diverter corresponding to the first path of travel to a second position adjacent another side of the diverter corresponding to the second path of travel. A magnetic coupling is formed between the diverter and the guide for maintaining the guide in either the first position or the second position. A selector may be provided as part of a switch for switching the guide between the first and second positions. Related aspects include a conveyor incorporating the diverter and methods of use and manufacture.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 6, 2010
    Assignee: Span Tech LLC
    Inventors: Stephen C. Fye, Lewis W. Ward, B. Keith Thomas, Ashok R. Anumula
  • Publication number: 20090107805
    Abstract: In one aspect, a modular link conveyor chain including slats is capable of assuming a compressed and an expanded condition so as to permit side-flexing while moving along a forward run and a return run in an endless path. The chain is formed of links arranged in rows spaced apart in the conveying direction, the links of a first row including aligned apertures and the links of a second row including oversized apertures, such as slots, for aligning with the aligned apertures of the links in the first row. A first connector is associated with the corresponding apertures to interconnect the first and second rows of links. At least one elongated slat is mounted to the connector. The slat maybe mounted for pivoting movement between a first position forming at least part of a conveying surface along the forward run, and a second position along the return run.
    Type: Application
    Filed: May 24, 2007
    Publication date: April 30, 2009
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Mark D. Russell
  • Publication number: 20080142341
    Abstract: A conveyor is for possible use in transferring articles between two adjacent conveyors. In one embodiment, the conveyor includes a pair of idler structures and a drive structure for collectively guiding and moving a conveyor belt or chain relative to a bed. At least one of the drive structure or idler structures is mounted or positioned so at to be capable of moving relative to the belt or chain to provide tensioning therefor. In another embodiment, a bed assembly including the chain or belt, the drive structure, and the idler structure is also substantially fully releasable from a corresponding base for servicing or clearing a jam. In either case, the conveyor may be driven using a slave drive associated with an adjacent conveyor. Related methods are disclosed.
    Type: Application
    Filed: October 31, 2007
    Publication date: June 19, 2008
    Inventors: James L. Layne, Michael D. McDaniel, Stephen C. Fye, B. Keith Thomas, Lewis W. Ward
  • Patent number: 7308979
    Abstract: A conveyor for possible use in transferring articles between two adjacent conveyors is disclosed. In one embodiment, the conveyor includes a pair of idler structures and a drive structure for collectively guiding and moving a conveyor belt or chain relative to a bed. At least one of the drive structure or idler structures is mounted or positioned so at to be capable of moving relative to the belt or chain to provide tensioning therefor. In another embodiment, a bed assembly including the chain or belt, the drive structure, and the idler structure is also substantially fully releasable from a corresponding base for servicing or clearing a jam. In either case, the conveyor may be driven using a slave drive associated with an adjacent conveyor.
    Type: Grant
    Filed: November 17, 2004
    Date of Patent: December 18, 2007
    Assignee: Span Tech LLC
    Inventors: James L. Layne, Michael D. McDaniel, Stephen C. Fye, B. Keith Thomas, Lewis W. Ward
  • Patent number: 6959803
    Abstract: A conveyor for possible use in transferring articles between two adjacent conveyors is disclosed. In one embodiment, the conveyor includes a pair of idler structures and a drive structure for collectively guiding and moving a conveyor belt or chain relative to a bed. At least one of the drive structure or idler structures is mounted or positioned so at to be capable of moving relative to the belt or chain to provide tensioning therefor. In another embodiment, a bed assembly including the chain or belt, the drive structure, and the idler structure is also substantially fully releasable from a corresponding base for servicing or clearing a jam.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: November 1, 2005
    Assignee: Span Tech LLC
    Inventors: James L. Layne, Michael D. McDaniel, B. Keith Thomas, Stephen C. Fye
  • Patent number: D658842
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: May 1, 2012
    Assignee: Span Tech LLC
    Inventors: James L. Layne, Lewis W. Ward, B. Keith Thomas, Stephen C. Fye