Patents by Inventor David Dunlap

David Dunlap 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).

  • Publication number: 20150006618
    Abstract: A system for providing content to client computing devices. The system is configured to receive an audio feed that includes audio segments. Each audio segment includes either regular audio content or preemptory audio content. The system may determine whether each audio segment includes regular or preemptory audio content. For each audio segment determined to include preemptory audio content, the system may direct the client computing devices to preempt, with the preemptory audio content, any current content being presented by the client computing devices. For each audio segment determined to include regular audio content, the system may identify the regular audio content, match multimedia video content with the identified regular audio content, and direct the matched multimedia video content to the client computing devices for presentation thereby to users.
    Type: Application
    Filed: December 18, 2013
    Publication date: January 1, 2015
    Inventors: Robert Bryce Clemmer, Sam Olusegun Oluwalana, Elliot Allen Swan, Mathew David Polzin, Justin David Dunlap
  • Publication number: 20140172961
    Abstract: A system for providing content to client computing devices. The system is configured to receive an audio feed that includes audio segments. Each audio segment includes either regular audio content or preemptory audio content. The system may determine whether each audio segment includes regular or preemptory audio content. For each audio segment determined to include preemptory audio content, the system may direct the client computing devices to preempt, with the preemptory audio content, any current content being presented by the client computing devices. For each audio segment determined to include regular audio content, the system may identify the regular audio content, match multimedia video content with the identified regular audio content, and direct the matched multimedia video content to the client computing devices for presentation thereby to users.
    Type: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Inventors: Robert Bryce Clemmer, Sam Olusegun Oluwalana, Elliot Allen Swan, Mathew David Polzin, Justin David Dunlap
  • Patent number: 7862622
    Abstract: A prosthetic foot having an adjustable height heel includes a frame portion with an ankle link pivotally supported on the frame portion at a first pivot axis. A detent rod is pivotally connected to the ankle at a second pivot axis, and a detent member is pivotally affixed to the frame portion at a third pivot axis. The detent member is selectively operable to receive and releasably retain a length of the detent rod therein so that the length of the detent rod extending between the second and third pivot axes may be selectably adjusted. When the length of the rod is so adjusted, the angular relationship of the frame portion and the ankle link is changed thereby changing the heel height of the foot. The detent mechanism may be activated by various means including fluidic means, mechanical means, electromechanical means, and the like.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: January 4, 2011
    Assignee: College Park Industries, Inc.
    Inventors: David Dunlap, Aaron Taszreak, Lars R. Chrisman, Michael G. Leydet, Christopher L. Johnson
  • Publication number: 20090177595
    Abstract: A metering device that allows the two-way exchange of electrical energy between the power grid and electric vehicles by giving customers the option to upload electrical energy from their vehicle's electrical power system to the power grid or to another vehicle, or the option to download electrical energy from the power grid or another vehicle, to charge their vehicle's electric storage system, depending on the current market price of electricity. This allows users to both buy and sell electricity as a commodity to offset their fuel costs and to generate income. The metering device and the associated server may maintain a database of the user's preferences and identification.
    Type: Application
    Filed: October 6, 2008
    Publication date: July 9, 2009
    Inventors: Stephen David Dunlap, William Bennett Morrow, Jacqueline Frances Timte
  • Publication number: 20070299544
    Abstract: A prosthetic foot having an adjustable height heel includes a frame portion with an ankle link pivotally supported on the frame portion at a first pivot axis. A detent rod is pivotally connected to the ankle at a second pivot axis, and a detent member is pivotally affixed to the frame portion at a third pivot axis. The detent member is selectively operable to receive and releasably retain a length of the detent rod therein so that the length of the detent rod extending between the second and third pivot axes may be selectably adjusted. When the length of the rod is so adjusted, the angular relationship of the frame portion and the ankle link is changed thereby changing the heel height of the foot. The detent mechanism may be activated by various means including fluidic means, mechanical means, electromechanical means, and the like.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 27, 2007
    Inventors: David Dunlap, Aaron Taszreak, Lars Chrisman, Michael Leydet, Christopher Johnson
  • Publication number: 20060021294
    Abstract: A package comprises two or more toothbrushes which are dated to indicate a service period such as by designating a starting date and/or an ending date, or some other date in the service period. The service periods are sequential and add up, ideally, to one complete year so that a package, purchased at any time during a year, provides toothbrushes that can be used for twelve sequential months. Providing sequentially dated toothbrushes provides an indication to the user to discard used toothbrushes at the ends of the service periods thereby promoting dental health as recommended by dentists and toothbrush manufacturers. The service period indicator may be numbers, letters, words, symbols, colors, figures or any combination that suggests a period of service of a particular toothbrush and may be placed at any suitable location on each toothbrush. Suitable instructions, placed on and/or in the package or separate from the package, are preferably provided to inform potential users of the meanings of the indicators.
    Type: Application
    Filed: September 28, 2005
    Publication date: February 2, 2006
    Inventor: David Dunlap
  • Publication number: 20050202935
    Abstract: A safety jump training apparatus designed for safely mounting on a wall to permit an athlete to safely measure their vertical leap. The safety jump training apparatus includes a jump measurement device and a rotating support to rotably attach the measurement device to a mounting plate, as well as numerous safety features. The safety features include cooperating locking pin recesses and a locking pin to secure the apparatus in either an operating position or a storage position, a lock to adjustably secure the vertical height of the measurement device, a translation resistor to control the movement of the measurement device when the lock is disengaged, a safety position limiter to ensure that the measurement device is always a predetermined distance above the ground, and a safety cover to safely contain majority of the apparatus.
    Type: Application
    Filed: March 4, 2004
    Publication date: September 15, 2005
    Inventors: Bradford Underwood, David Dunlap, Cyndie Dunlap
  • Publication number: 20050175970
    Abstract: An interactive language instruction system employs a setting and characters with which a learner can interact with verbal and text communication. The learner moves through an environment simulating a cultural setting appropriate for the language being learned. Interaction with characters is determined by a skill level matrix to provide varying levels of difficulty. A visual dictionary allows querying of depicted objects in the environment for verbal and text definitions as well as testing for skill determination.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 11, 2005
    Inventors: David Dunlap, Derek Koch, Douglas Whetter
  • Patent number: 6472557
    Abstract: A process for producing high quality TPA suitable for PET feedstock material from recycled polyester. The process includes the steps of depolymerizing the polyester to form DMT; separating the DMT from secondary materials; and hydrolyzing the DMT to form TPA. In a preferred embodiment of the invention the recycled polyester is contacted with a component monomer or oligomer thereof to liquefy the polyester prior to depolymerizing the polyester.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 29, 2002
    Assignee: Eastman Chemical Company
    Inventors: Thomas Michael Pell, Jr., Michael Paul Ekart, David Dunlap Cornell, Damon Brian Shackelford, Donald Lee Carver
  • Publication number: 20020124478
    Abstract: A post and beam furniture system includes a plurality of overhead beams, and a plurality of vertical posts having at least one outwardly extending flange with a single slot extending vertically along the end face of the flange. Beam-to-post connectors are attached to the opposite ends of the beams, and are detachably retained in the slots in the posts for mounting the beams on the upper ends of the posts. The furniture system may also include X-shaped posts and Y-shaped posts with slots which create an integrated mounting arrangement for detachably interconnecting the posts and beams in alternative configurations, and mounting accessories at a variety of different locations.
    Type: Application
    Filed: March 6, 2001
    Publication date: September 12, 2002
    Inventors: James C. Rush, James N. Ludwig, Karl Heinz Mueller, Steven C. Gortsema, David A. Dunlap, Danhui Luo, Debajit Guha
  • Patent number: 6191177
    Abstract: An apparatus for depolymerizing recycled polyester into its component ester monomers and half esters includes a first reactor for depolymerizing the recycled polyester, a separator for separating ester monomeric components and half-esters from secondary materials produced in the first reactor, and a second reactor for producing a low molecular weight polyester from liquefied separator products.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: February 20, 2001
    Assignee: Eastman Chemical Company
    Inventors: Michael Paul Ekart, Thomas Michael Pell, Jr., David Dunlap Cornell, Damon Bryan Shackelford
  • Patent number: 6136869
    Abstract: A process for recovering suitable polyester feedstock material from recycled polyester includes the steps of depolymerizing the polyester into its component ester monomers and half-esters; separating the monomers and half-esters from other secondary materials; and mixing the component ester monomers and half-esters with additional monomers to produce a low molecular weight polyester. In a preferred embodiment of the invention the recycled polyester is contacted with a component monomer or oligomer thereof to liquefy the polyester before the polyester is depolymerized.The invention further provides an apparatus for carrying out the process. The apparatus includes a first reactor for depolymerizing the recycled polyester, a separator for separating ester monomeric components and half-esters from secondary materials produced in the first reactor, and a second reactor for producing a low molecular weight polyester from the liquefied separator products.
    Type: Grant
    Filed: October 6, 1998
    Date of Patent: October 24, 2000
    Assignee: Eastman Chemical Company
    Inventors: Michael Paul Ekart, Thomas Michael Pell, Jr., David Dunlap Cornell, Damon Bryan Shackelford
  • Patent number: 6054551
    Abstract: A polyester having increased UV absorption comprising (i) a residue of a dicarboxylic acid component comprising terephthalic and from about 1 to about 20 mole % of isophthalic acid, (ii) a residue of a glycol component comprising ethylene glycol, and (iii) from about 0.01 mole % to about 15 mole % of a residue of an aromatic diol derivative, wherein the aromatic diol derivative has a least two polyester reactive groups that are capable of participating in a polyester-forming reaction and the total mole % for components (i), (ii) and (iii) is 200 mole %.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: April 25, 2000
    Assignee: Eastman Chemical Company
    Inventors: David Dunlap Cornell, Timothy Edward Long
  • Patent number: 6010054
    Abstract: This invention provides a linear stapling instrument for use in surgical procedures including, inter alia, a staple housing. The housing includes a plurality of staple openings and a plurality of staples disposed in the staple openings. The housing further includes a plurality of staple drivers. The staple drivers have an upper surface bearing on a staple and a lower camming surface. The staple drivers are slidably mounted in the housing for movement from an initial lower position to an upper position. They also are arranged such that their lower camming surfaces are disposed in one or more spaced rows. The housing also includes a sled slidably mounted in the housing for movement from an unfired position to a fired position. The sled has at least one camming surface. The camming surface is disposed on the sled such that movement of the sled from its unfired to its fired position causes the camming surface to contact in sequence the lower camming surface of the staple drivers in at least one the row.
    Type: Grant
    Filed: December 7, 1998
    Date of Patent: January 4, 2000
    Assignee: Imagyn Medical Technologies
    Inventors: Christopher L. Johnson, David A. Dunlap
  • Patent number: 5941852
    Abstract: A trocar for use in surgical procedures including a cannula for maintaining a sealed working channel in a body wall and an obturator which creates the working channel through the body wall while protecting patients and medical personnel from harm is disclosed. A cannula converter which can be employed with the trocar to enable a surgeon to use surgical instruments having a smaller outer diameter than the inner diameter of the cannula without deflating a body cavity is further disclosed. A site stabilizer which can be used with the trocar to prevent the cannula from being inadvertently withdrawn from the body cavity during a surgical procedure is also disclosed.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: August 24, 1999
    Assignee: Imagyn Medical Technologies California, Inc.
    Inventors: David A. Dunlap, Douglas J. Medema, Hugh Melling, Jeffrey W. Zerfas
  • Patent number: 5855566
    Abstract: A trocar for use in surgical procedures including a cannula for maintaining a sealed working channel in a body wall and an obturator which creates the working channel through the body wall while protecting patients and medical personnel from harm is disclosed. A cannula converter which can be employed with the trocar to enable a surgeon to use surgical instruments having a smaller outer diameter than the inner diameter of the cannula without deflating a body cavity is further disclosed. A site stabilizer which can be used with the trocar to prevent the cannula from being inadvertently withdrawn from the body cavity during a surgical procedure is also disclosed.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: January 5, 1999
    Assignee: UroHealth, Inc. (California)
    Inventors: David A. Dunlap, Douglas J. Medema, Hugh Melling, Jeffrey W. Zerfas
  • Patent number: 5797537
    Abstract: This invention provides articulated surgical instruments for use in laparoscopic surgical procedures including, in general, a handle, an elongated shaft, and an articulated tip. A gap extends longitudinally between the shaft and the tip. The instruments further include a flexible compression drive member, preferably a flexible cable, which is slidably disposed in the shaft and extends through the gap. The flexible drive member bends through the gap in a plane of articulation when the tip is articulated. A flexible support is attached at one end to the shaft and at another end to the tip. At least one of those connections is a slidable connection. The support extends through the articulation joint adjacent to the flexible drive member in the plane of articulation such that the support bends through the gap in the plane of articulation and the flexible drive member bends against the support when the tip is articulated in one direction from its aligned position.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: August 25, 1998
    Assignee: Richard-Allan Medical Industries, Inc.
    Inventors: Jeffrey R. Oberlin, Christopher L. Johnson, David A. Dunlap
  • Patent number: 5538509
    Abstract: A trocar for use in surgical procedures including a cannula for maintaining a sealed working channel in a body wall and an obturator which creates the working channel through the body wall while protecting patients and medical personnel from harm is disclosed. A cannula converter which can be employed with the trocar to enable a surgeon to use surgical instruments having a smaller outer diameter than the inner diameter of the cannula without deflating a body cavity is further disclosed. A site stabilizer which can be used with the trocar to prevent the cannula from being inadvertently withdrawn from the body cavity during a surgical procedure is also disclosed.
    Type: Grant
    Filed: January 31, 1994
    Date of Patent: July 23, 1996
    Assignee: Richard-Allan Medical Industries, Inc.
    Inventors: David A. Dunlap, Douglas J. Medema, Hugh Melling, Jeffrey W. Zerfas
  • Patent number: 4413613
    Abstract: A damper device insertable into a slotted duct or flue without cutting completely through the duct, including a sleeve conforming to the duct cross-section and adapted for insertion through the slot to nest within the un-cut duct portion. A damper plate with stiffener ribs is rotatably mounted within the sleeve. An apertured cover plate slightly larger than the duct slot size is located to overlap the slot for mounting the damper device to the duct, and a spacer plate may be placed intermediate and rigidly attached to the cover plate and the sleeve for reinforcing the support at one end of a damper shaft. The damper shaft may be rotated manually or by means of a motor mounted by a bracket to the cover plate.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: November 8, 1983
    Assignee: Jefco Laboratories, Inc.
    Inventor: David A. Dunlap