Patents by Inventor David R. Campbell

David R. Campbell 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: 11143489
    Abstract: A rail launch mechanism and method for launching a payload is configured to release payload lugs of a payload from a platform. A rack for launching a payload includes multiple rails that separately engage lugs in the respective payload of the rails, and a force actuator for launching the payload by accelerating the payload along the rails, causing the lugs to separate from the respective rails. A launching system for launching the payload from the platform may include a rail, at least one payload release shoe that carries a payload lug along the rail, and a force actuator for accelerating the payload release shoe such that inertia of the payload causes the payload lug to be released from the payload release shoe.
    Type: Grant
    Filed: February 7, 2019
    Date of Patent: October 12, 2021
    Assignee: Raytheon Company
    Inventors: David R. Campbell, Philip C. Wright, Robert A. Bailey, James Traylor
  • Patent number: 10947696
    Abstract: An ingress/egress arrangement for a machine comprises an operator cabin and a walkway system outside the operator cabin. The operator cabin can include a plurality of posts, including first post and a second post, and a door rotatably coupled to the first post so as to be movable between at a fully open position and at a fully closed position. An opening in the operator cabin between the first post and the second post defines a first operator ingress/egress point. The walkway system provides operator access to inside the operator cabin via the door and the opening, and provides operator access to outside the operator cabin. The door, in the fully open position, can restrict operator access toward a front of the machine and can allow operator access simultaneously to the walkway system and a second operator ingress/egress point.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: March 16, 2021
    Assignee: Caterpillar Inc.
    Inventors: Jon P. Wallgren, David R. Campbell, Andrew J. Gates, Eric M. Prater, Teddy E. Kingham, Alexander C. Striegel
  • Publication number: 20210002858
    Abstract: An ingress/egress arrangement for a machine comprises an operator cabin and a walkway system outside the operator cabin. The operator cabin can include a plurality of posts, including first post and a second post, and a door rotatably coupled to the first post so as to be movable between at a fully open position and at a fully closed position. An opening in the operator cabin between the first post and the second post defines a first operator ingress/egress point. The walkway system provides operator access to inside the operator cabin via the door and the opening, and provides operator access to outside the operator cabin. The door, in the fully open position, can restrict operator access toward a front of the machine and can allow operator access simultaneously to the walkway system and a second operator ingress/egress point.
    Type: Application
    Filed: July 1, 2019
    Publication date: January 7, 2021
    Applicant: Caterpillar Inc.
    Inventors: Jon P. Wallgren, David R. Campbell, Andrew J. Gates, Eric M. Prater, Teddy E. Kingham, Alexander C. Striegel
  • Publication number: 20200200506
    Abstract: A rail launch mechanism and method for launching a payload is configured to release payload lugs of a payload from a platform. A rack for launching a payload includes multiple rails that separately engage lugs in the respective payload of the rails, and a force actuator for launching the payload by accelerating the payload along the rails, causing the lugs to separate from the respective rails. A launching system for launching the payload from the platform may include a rail, at least one payload release shoe that carries a payload lug along the rail, and a force actuator for accelerating the payload release shoe such that inertia of the payload causes the payload lug to be released from the payload release shoe.
    Type: Application
    Filed: February 7, 2019
    Publication date: June 25, 2020
    Inventors: David R. Campbell, Philip C. Wright, Robert A. Bailey, James Traylor
  • Publication number: 20130228085
    Abstract: The present invention relates to a refurbished cylinder roller and a process for refurbishing cylinder rollers for use in printing machines. More particularly, the present invention also relates to a process for refurbishing metallic gravure cylinder rollers by replacing the worn outer plating layers with an extruded and thermally cured electrically conductive polymer material, and thereafter electroplating new outer plating layers thereon, the new plating layers including a new printing image formed therein.
    Type: Application
    Filed: April 22, 2013
    Publication date: September 5, 2013
    Applicant: Garry Machine Mfg. Inc.
    Inventors: Raghbir Bhullar, Nitin Padhye, David R. Campbell
  • Patent number: 8443516
    Abstract: The present invention relates to a refurbished cylinder roller and a process for refurbishing cylinder rollers for use in printing machines. More particularly, the present invention also relates to a process for refurbishing metallic gravure cylinder rollers by replacing the worn outer plating layers with an extruded and thermally cured electrically conductive polymer material, and thereafter electroplating new outer plating layers thereon, the new plating layers including a new printing image formed therein.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: May 21, 2013
    Assignee: Garry Machine Mfg. Inc.
    Inventors: Raghbir Bhullar, Nitin Padhye, David R. Campbell
  • Patent number: 8328854
    Abstract: A dynamic cervical plate has a ratchet and pawl mechanism that allows the cervical plate to post operatively shorten the length of the plate and maintain compression between adjacent vertebrae. The plate has an elongated shaft with teeth on one surface and a groove along each longitudinal edge. A lateral plate is attached on one end of the shaft. The plate has screw holes for connecting with the head of a spinal screw. Another lateral plate is slidably engaged in the longitudinal grooves along the shaft and has a spring clip acting as a pawl with the teeth on the shaft. The sliding bar has screw holes on each side of the shaft. The clip is configured to span the screw holes to automatically engage and prevent screws from backing out of the holes.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: December 11, 2012
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 8273129
    Abstract: A spinal fusion implant for implantation between adjacent vertebrae is formed in the approximate shape of a hollow cube. The device has an upper section and a lower section separated by a distractor all of which are relatively movable. The sidewalls of the upper section and the lower section terminate in inclined planes so that the sections move away from each other as the wedge shaped increases the height of the device. The upper section and lower section each includes a clamping flange. The clamping flange on the upper section engages the vertebral body above the implant and the clamping flange on the lower section engages the vertebral body below the implant. The distractor has a pair of clamping flanges on an end wall wherein one of the pair engages the vertebral body above the implant and the other engages the vertebral body below the implant. The clamping flanges provide a clamping action between adjacent vertebral bodies to restore alignment and stabilize the vertebral segments.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: September 25, 2012
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 8262666
    Abstract: A spinal implant for stabilizing two adjacent vertebrae having a damaged disc therebetween is assembled in situ. An elongated tool is used to insert a flat U-shaped distractor in the disc space through a low profile incision with both legs of the U-shaped distractor contacting both end plates of the adjacent vertebrae. The tool is rotated 90 degrees rotating the distractor 90 degrees so that each leg of the distractor contacts one end plate of the adjacent vertebrae, respectively, to restore intervertebral space. An elliptical bone tray is slid along the tool to seat within the U-shaped distractor. The tool is removed and a retainer replaces it to lock the bone tray and the distractor together. A screw is used to lock the bone tray to the distraction device, the screw slides down the cannula which is the tool inserted over the rod that the distraction implant is attached to.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: September 11, 2012
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 8172905
    Abstract: A spinal implant for insertion in the intervertebral space is formed as a hollow cage, wedge shaped in profile, with a lesser height leading end for a low profile entry. The cage has two open sides with a plurality of angled teeth along opposite longitudinal edges for engaging the end plates of adjacent vertebrae when the cage is rotated into position. One portion of the angled teeth are angled toward an end of the cage and another portion of the angled teeth are angled away from that end to provide a lock preventing the cage from migrating ventrally or dorsally from the spine. Upon rotation, the leading end has a greater height than the trailing end.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: May 8, 2012
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 8123811
    Abstract: A spinal implant for insertion between adjacent vertebrae for promoting fusion of the vertebrae is a wedge shaped body with upper and lower plates separated by pyramidal sides with one large end and one small end enclosing the body. The upper and lower plates have elongated openings oriented perpendicularly to each other to form an internal labyrinth. The upper and lower openings are to be filled with thin layers of bone graft material to promote rapid ingrowth of living tissue.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: February 28, 2012
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 8083799
    Abstract: A spinal implant for insertion in the intervertebral space is formed as a hollow cage, wedge shaped in profile, with a lesser height leading end for a low profile entry. The cage has two open sides with a plurality of angled teeth along opposite longitudinal edges for engaging the end plates of adjacent vertebrae when the cage is rotated into position. One portion of the angled teeth is angled toward an end of the cage and another portion of the angled teeth is angled away from that end to provide a lock preventing the cage from migrating ventrally or dorsally from the spine. Upon rotation, the leading end has a greater height than the trailing end. Opposing side walls of the cage include recesses to facilitate rotation of the cage and minimize stress on adjacent vertebrae.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: December 27, 2011
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, David R. Campbell, Matthew G. Baynham
  • Publication number: 20110144755
    Abstract: A spinal fusion implant for implantation between adjacent vertebrae is formed in the approximate shape of a hollow cube. The device has an upper section and a lower section separated by a distractor all of which are relatively movable. The sidewalls of the upper section and the lower section terminate in inclined planes so that the sections move away from each other as the wedge shaped increases the height of the device. The upper section and lower section each includes a clamping flange. The clamping flange on the upper section engages the vertebral body above the implant and the clamping flange on the lower section engages the vertebral body below the implant. The distractor has a pair of clamping flanges on an end wall wherein one of the pair engages the vertebral body above the implant and the other engages the vertebral body below the implant. The clamping flanges provide a clamping action between adjacent vertebral bodies to restore alignment and stabilize the vertebral segments.
    Type: Application
    Filed: December 14, 2010
    Publication date: June 16, 2011
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 7962089
    Abstract: A radio network having more than one radio node is disclosed having a cell broadcast system configured to broadcast network policies. The network includes a first group of radio nodes configured to receive the broadcast network policies. The first group of radio nodes is configured to both receive and send the network policies. A second group of radios receives the network policies from the first group of radios.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: June 14, 2011
    Assignee: Rockwell Collins, Inc.
    Inventors: John Thommana, Lizy Paul, Roy C. Moore, David R. Campbell, Steven J. Zaugg
  • Publication number: 20110118784
    Abstract: A dynamic cervical plate has a ratchet and pawl mechanism that allows the cervical plate to post operatively shorten the length of the plate and maintain compression between adjacent vertebrae. The plate has an elongated shaft with teeth on one surface and a groove along each longitudinal edge. A lateral plate is attached on one end of the shaft. The plate has screw holes for connecting with the head of a spinal screw. Another lateral plate is slidably engaged in the longitudinal grooves along the shaft and has a spring clip acting as a pawl with the teeth on the shaft. The sliding bar has screw holes on each side of the shaft. The clip is configured to span the screw holes to automatically engage and prevent screws from backing out of the holes.
    Type: Application
    Filed: October 18, 2010
    Publication date: May 19, 2011
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Publication number: 20110083570
    Abstract: The present invention relates to a refurbished cylinder roller and a process for refurbishing cylinder rollers for use in printing machines. More particularly, the present invention also relates to a process for refurbishing metallic gravure cylinder rollers by replacing the worn outer plating layers with an extruded and thermally cured electrically conductive polymer material, and thereafter electroplating new outer plating layers thereon, the new plating layers including a new printing image formed therein.
    Type: Application
    Filed: July 20, 2010
    Publication date: April 14, 2011
    Applicant: GARRY MACHINE MFG. INC.
    Inventors: Raghbir Bhullar, Nitin Padhye, David R. Campbell
  • Patent number: 7850733
    Abstract: A spinal fusion implant for implantation between adjacent vertebrae is formed in the approximate shape of a hollow cube. The device has an upper section and a lower section separated by a distractor all of which are relatively movable. The sidewalls of the upper section and the lower section terminate in inclined planes so that the sections move away from each other as the wedge shaped distractor increases the height of the device.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: December 14, 2010
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 7815666
    Abstract: A dynamic cervical plate has a ratchet and pawl mechanism that allows the cervical plate to post operatively shorten the length of the plate and maintain compression between adjacent vertebrae. The plate has an elongated shaft with teeth on one surface and a groove along each longitudinal edge. A lateral plate is attached on one end of the shaft. The plate has screw holes for connecting with the head of a spinal screw. Another lateral plate is slidably engaged in the longitudinal grooves along the shaft and has a spring clip acting as a pawl with the teeth on the shaft. The lateral sliding plate has screw holes on each side of the shaft. The clip is configured to span the screw holes to automatically engage and prevent screws from backing out of the holes.
    Type: Grant
    Filed: January 18, 2007
    Date of Patent: October 19, 2010
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Patent number: 7468069
    Abstract: A bone plate for use in anterior cervical spinal fixation has interlocking components to prevent dislodgement of the plate due to anatomical forces. The plate is formed in the shape of a block letter C and the exposed surface is smooth to prevent trauma to internal body tissue. The plate spans the intervertebral space with each end attached to an adjacent vertebrae by bone screws threadably engaged with the bone. The distal ends of the bone screws The plate has a screw lock in each end for preventing the locking screws from backing out.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: December 23, 2008
    Assignee: Atlas Spine, Inc.
    Inventors: Bret O. Baynham, G. Clay Baynham, Matthew G. Baynham, David R. Campbell
  • Publication number: 20080275506
    Abstract: A spinal implant for insertion in the intervertebral space is formed as a hollow cage, wedge shaped in profile, with a lesser height leading end for a low profile entry. The cage has two open sides with a plurality of angled teeth along opposite longitudinal edges for engaging the end plates of adjacent vertebrae when the cage is rotated into position. One portion of the angled teeth is angled toward an end of the cage and another portion of the angled teeth is angled away from that end to provide a lock preventing the cage from migrating ventrally or dorsally from the spine. Upon rotation, the leading end has a greater height than the trailing end. Opposing side walls of the cage include recesses to facilitate rotation of the cage and minimize stress on adjacent vertebrae.
    Type: Application
    Filed: April 25, 2008
    Publication date: November 6, 2008
    Inventors: Bret O. Baynham, G. Clay Baynham, David R. Campbell, Matthew G. Baynham