Patents by Inventor Timothy Duke

Timothy Duke 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: 7726905
    Abstract: An apparatus for reconditioning a paved surface includes a vehicle adapted to traverse the paved surface. The vehicle has a manifold with a plurality of jets disposed within a surface adjacent the paved surface and at least one of the jets has a high temperature, high pressure nozzle. The high temperature, high pressure nozzle has a hard material with a hardness of at least 2,000 HK. The jets are in fluid communication with a fluid reservoir through a fluid pathway, and the fluid pathway has a pressurizing mechanism and a heating mechanism for bringing the fluid to a high temperature and a high pressure.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: June 1, 2010
    Inventors: David R. Hall, David Wahiquist, Timothy Duke
  • Patent number: 7712996
    Abstract: In one aspect of the invention, an asphalt recycling machine has a passageway in communication with a fluid source secured to a motorized vehicle and a fogging nozzle. The fogging nozzle is connected to an underside of the motorized vehicle. The fogging nozzle is also proximate a rotary degradation element connected to the underside of the motorized vehicle. The rotary degradation element has an axis of rotation nonparallel with a paved surface.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: May 11, 2010
    Inventors: David R. Hall, Codrin Daranga, Timothy Duke
  • Patent number: 7712692
    Abstract: In one aspect of the invention, a rotary impact mill has a milling chamber defined by a housing with an inlet, an outlet, and at least one wall. A plurality of impact hammers located within the milling chamber are fastened to and longitudinally disposed along a rotor assembly that is connected to a rotary driving mechanism. At least one of the impact hammers has a plurality of inserts arranged adjacent one another in a row and attached to a body of the hammer, wherein a first end of at least one insert is complementary to a second end of an adjacent insert.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: May 11, 2010
    Inventors: David R. Hall, Timothy Duke
  • Publication number: 20080056822
    Abstract: An apparatus for reconditioning a paved surface includes a vehicle adapted to traverse the paved surface. The vehicle has a manifold with a plurality of jets disposed within a surface adjacent the paved surface and at least one of the jets has a high temperature, high pressure nozzle. The high temperature, high pressure nozzle has a hard material with a hardness of at least 2,000 HK. The jets are in fluid communication with a fluid reservoir through a fluid pathway, and the fluid pathway has a pressurizing mechanism and a heating mechanism for bringing the fluid to a high temperature and a high pressure.
    Type: Application
    Filed: November 10, 2006
    Publication date: March 6, 2008
    Inventors: David R. Hall, David Wahiquist, Timothy Duke
  • Publication number: 20080041993
    Abstract: In one aspect of the invention, a rotary impact mill has a milling chamber defined by a housing with an inlet, an outlet, and at least one wall. A plurality of impact hammers located within the milling chamber are fastened to and longitudinally disposed along a rotor assembly that is connected to a rotary driving mechanism. At least one of the impact hammers has a plurality of inserts arranged adjacent one another in a row and attached to a body of the hammer, wherein a first end of at least one insert is complementary to a second end of an adjacent insert.
    Type: Application
    Filed: November 20, 2006
    Publication date: February 21, 2008
    Inventors: David R. Hall, Timothy Duke
  • Publication number: 20080014020
    Abstract: In one aspect of the invention, an asphalt recycling machine has a passageway in communication with a fluid source secured to a motorized vehicle and a fogging nozzle. The fogging nozzle is connected to an underside of the motorized vehicle. The fogging nozzle is also proximate a rotary degradation element connected to the underside of the motorized vehicle. The rotary degradation element has an axis of rotation nonparallel with a paved surface.
    Type: Application
    Filed: July 14, 2006
    Publication date: January 17, 2008
    Inventors: David R. Hall, Codrin Daranga, Timothy Duke
  • Publication number: 20070256345
    Abstract: A rigid composite structure has a first bore formed in a metallic material and a second bore formed by a super hard interior segment or segments disposed within the first bore. Each segment may be lined adjacent to one another and held under compression within the first bore. The segments may be made of super hard materials such as natural diamond, synthetic diamond, polycrystalline diamond, single crystalline diamond, cubic boron nitrate or other superhard composite materials which exhibit low thermal expansion rates and are generally chemically inert. The resultant rigid composite structure may possess higher tolerances to high pressures and high temperatures within the second bore.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Inventors: David Hall, Scott Dahlgren, Ronald Crockett, Timothy Duke, Joshua Sensinger, Joe Fox, Tyson Wilde
  • Publication number: 20070257543
    Abstract: A vertical milling apparatus for a paved surface has a rotary degradation element which has a top end connected to a carrier. The carrier is slideably attached to an underside of a motorized vehicle, and adapted to traverse the paved surface. The rotary degradation element has an axis of rotation and a plurality of inserts secured to the element's outer surface. At least one insert has a superhard working surface positioned to contact the paved surface.
    Type: Application
    Filed: May 4, 2006
    Publication date: November 8, 2007
    Inventors: David Hall, Timothy Duke, Joe Fox, Tyson Wilde
  • Publication number: 20070209186
    Abstract: A locking mechanism to prevent rotation between a press frame and a hydraulic cartridge threaded into the press frame is disclosed in one aspect of the invention as including a locking mechanism body; one or more fasteners to attach the body to the frame of an HPHT press; and a pin extendable with respect to the body and adapted to engage an aperture in the hydraulic cartridge. The pin prevents rotation of the hydraulic cartridge relative to the frame. In certain embodiments, a cap constructed of a softer material than the hydraulic cartridge is attached to the end of the pin to prevent scratching or damage to the hydraulic cartridge.
    Type: Application
    Filed: March 10, 2006
    Publication date: September 13, 2007
    Inventors: David Hall, Timothy Duke
  • Publication number: 20070122512
    Abstract: The present invention includes a hydraulic cartridge and unitary frame connection for a high pressure high temperature press apparatus with the hydraulic cartridge having a cylindrical base and truncated hollow conical section The truncated section has an external threadform with a taper between about 2.650 and 5.650 inches per foot. The unitary frame having an opening with an internal threadform extending axially substantially between an outer surface and an inner reaction chamber defined by the unitary frame and the internal threadform being threadedly mated with the external threadform of the hydraulic cartridge such that a load is substantially equally distributed across the external threadform.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: David Hall, Scott Dahlgren, Timothy Duke, Joe Fox
  • Publication number: 20070092336
    Abstract: An apparatus for regulating a flow of pavement rejuvenation materials for deposit on a roadway is disclosed in one aspect of the invention as including a first channel is supported by a pavement recycling machine and is in communication with a supply of pavement rejuvenation materials; a second channel slideably coupled to the first channel, the pavement rejuvenation materials adapted to flow through the first and second channels; and a hardened tip coupled to the second channel. The apparatus may also have a seat coupled to one of the channels; and a blocking element coupled to the other of the channels. Upon sliding the first channel with respect to the second channel, the blocking element contacts the seat, thereby impeding the flow of pavement rejuvenation materials flowing through the channels.
    Type: Application
    Filed: December 12, 2005
    Publication date: April 26, 2007
    Inventors: David Hall, Timothy Duke, David Wahlquist
  • Publication number: 20070040140
    Abstract: The present invention includes a piston valve for charging and discharging a first fluid chamber. The piston valve includes a piston shaft and a ring comprising a seal element. The piston shaft has a first end and a second end with the first end including a counter bore having at least one vent. The ring is disposed within a cylinder and the seal element is disposed intermediate the piston shaft and the ring. The piston valve may be used for intensification purposes such as in a high pressure high temperature hydraulic cartridge.
    Type: Application
    Filed: August 19, 2005
    Publication date: February 22, 2007
    Inventors: David Hall, Timothy Duke, Ronald Crockett, Jeff Jepson
  • Publication number: 20070009626
    Abstract: The present invention includes a hydraulic cartridge and unitary frame connection for a high pressure high temperature press apparatus. The invention includes a hydraulic cartridge and a unitary frame threaded together. The hydraulic cartridge includes a cylindrical base and a truncated hollow conical section with external threads having a taper between about 2.650 and 5.650 inches per foot. The unitary frame defines an inner reaction chamber and has an outer surface. An opening in the unitary frame has internal threads extending axially substantially between the outer surface and the inner reaction chamber. The internal threads are adapted to mate with the hydraulic cartridge and the hydraulic cartridge is attached to the unitary frame along the length of the threads.
    Type: Application
    Filed: July 6, 2005
    Publication date: January 11, 2007
    Inventors: David Hall, Scott Dahlgren, Timothy Duke, Joe Fox
  • Publication number: 20060204331
    Abstract: A method for recycling a paved surface includes the steps of providing a motorized vehicle adapted to traverse a paved surface; providing the motorized vehicle with a plurality of degradation elements, a plurality of foaming elements and a plurality of compacting elements; each plurality being attached to a carriage slidably supported by a bearing surface of an underside of the motorized vehicle; degrading the paved surface with the plurality of degradation elements as the vehicle traverses the paved surface; foaming rejuvenation material by the plurality of foaming elements into the degraded surface as the surface is being degraded; and compacting the degraded surface and the rejuvenation material into a new surface with the plurality of compaction elements as the foaming elements continue to foam rejuvenation material into the degraded surface.
    Type: Application
    Filed: May 31, 2006
    Publication date: September 14, 2006
    Inventors: David Hall, Timothy Duke, David Wahlquist, Codrin Daranga, Tyson Wilde
  • Publication number: 20060198698
    Abstract: In one aspect of the invention a method includes the steps of providing a channel attached to a vehicle adapted to transverse an area, the channel being in communication with at least one supply of pavement rejuvenation material, and the area having a layer of pavement aggregate; positioning the channel so that at least a portion of the channel is disposed within the layer; and adding the pavement rejuvenation material into the layer from an opening in the channel positioned below the surface of the layer.
    Type: Application
    Filed: April 21, 2006
    Publication date: September 7, 2006
    Inventors: David Hall, Timothy Duke, Codrin Daranga, David Wahiquist