Patents by Inventor Douglas Engel

Douglas Engel 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: 10989060
    Abstract: A ceramic matrix composite (CMC) seal segment for use in a segmented turbine shroud for radially encasing a turbine in a gas turbine engine. The CMC seal segment comprises an arcuate flange having a surface facing the turbine and a portion defining a bore for receiving an elongated pin, with the bore having a length that is at least 70% of the length of the elongated pin received therein. The CMC seal segment is carried by the carrier by at least one of the elongated pins being received within the bore. The CMC seal segment portion defining a pin-receiving bore is radially spaced from the arcuate flange by a spacing flange extending radially outward from the arcuate flange.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: April 27, 2021
    Assignees: Rolls-Royce North American Technologies Inc., Rolls-Royce Corporation, Rolls-Royce High Temperature Composites Inc.
    Inventors: Daniel K. Vetters, David J. Thomas, Ted Freeman, Joseph Lamusga, Rick Uskert, Douglas D. Dierksmeier, Jun Shi, Todd Engel, Matt Brandt
  • Patent number: 8975293
    Abstract: This disclosure describes methods of screening for compounds that disrupt the interaction between DNMT1 and the gamma-globin promoter or between LSD-1 and the gamma-globin promoter. This disclosure describes methods of screening for compounds that de-repress the gamma-globin gene.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: March 10, 2015
    Assignee: Regents of the University of Michigan
    Inventors: James Douglas Engel, Osamu Tanabe, Lihong Shi
  • Patent number: 8916608
    Abstract: This disclosure describes methods of screening for compounds that disrupt the interaction between DNMT1 and the gamma-globin promoter or between LSD-1 and the gamma-globin promoter. This disclosure describes methods of screening for compounds that de-repress the gamma-globin gene.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 23, 2014
    Assignee: Regents of the University of Michigan
    Inventors: James Douglas Engel, Osamu Tanabe, Lihong Shi
  • Publication number: 20130059806
    Abstract: This disclosure describes methods of screening for compounds that disrupt the interaction between DNMT1 and the gamma-globin promoter or between LSD-1 and the gamma-globin promoter. This disclosure describes methods of screening for compounds that de-repress the gamma-globin gene.
    Type: Application
    Filed: May 24, 2012
    Publication date: March 7, 2013
    Inventors: James Douglas Engel, Osamu Tanabe, Lihong Shi
  • Publication number: 20110078346
    Abstract: A universal computer networking device, in particular an Ethernet switch and the like, comprising a computer networking device having more than one power connection located on the computer networking device, wherein the computer networking device connects to a power source from either a first side or a second side of the computer networking device. Also, a method providing a computer networking device having more than one power connection located on the computer networking device, wherein the computer networking device connects to a power source from either a first side or a second side of the computer networking device, and attaching a power source to a first opening located proximate the first side of the computer networking device or to the second opening located proximate a second side of the computer networking device. Also, a device which contains Copper RJ45 transceiver ports and fiber-optic transceiver ports on the same switch.
    Type: Application
    Filed: September 28, 2009
    Publication date: March 31, 2011
    Inventors: Michael O'Connor, Victor Sevilla, Douglas Engel, Robert Dvorak, Michael Turiel
  • Patent number: 7309064
    Abstract: A puzzle that provides for rearranging different pieces to form a pattern formed from the pieces is disclosed. The puzzle includes at least one generally trilateral piece having three sides, and at least one generally quadrilateral piece. At least two of the sides of the quadrilateral piece have been adapted for engaging the friction enhancing surface on the trilateral piece, so that by surrounding the fixed hub with the trilateral pieces that are separated by the quadrilateral pieces, a continuous round gear surface is formed, that can be used to rotate the trilateral and the quadrilateral pieces together.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: December 18, 2007
    Inventor: Douglas A. Engel
  • Patent number: 6109818
    Abstract: A recombinator for connecting and recombining sections of material. The recombinator including a cylindrical sleeve formed from at least two semi-cylindrical sections having edges and an internal arcuate surface. A first cylindrical hub is used to cooperate with the cylindrical sleeve. The cylindrical hub is formed from at least two semi-cylindrical hub sections, each semi-cylindrical hub section including an external arcuate surface adapted for mating with the internal arcuate surface of the cylindrical sleeve and having edges adapted for alignment with at least one of the edges of at least one of the semi-cylindrical sections. The semi-cylindrical hub sections also include at least one facet surface joining the edges of the external arcuate surface of the semi-cylindrical hub section. Each facet surface has been adapted for mating with the facet surface of another semi-cylindrical hub section.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: August 29, 2000
    Inventor: Douglas A. Engel
  • Patent number: 5106093
    Abstract: A puzzle is comprised of cubically shaped pieces having 5 square holes centered on 5 of the cube faces and 1 square protrusion on the center of the sixth face. The protrusion is fitted with a spring loaded cog or catch so that the protrusion may be inserted into a square hole of another piece and will lock in place. The locked piece may be released only by inserting another piece in the correct orientation in another square hole in the same piece the first piece was inserted in. The release is effected by pressing the secondly inserted piece in all the way thereby releasing the catch of the first inserted piece but not allowing the release of the catch of the secondly inserted piece.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: April 21, 1992
    Inventor: Douglas A. Engel
  • Patent number: 5094132
    Abstract: A tool is comprised of a combination of a vice grip brand adjustable clamping pliers and a parallel jaw adjustable wrench such that the parallel jaws have been mounted on the end of the adjustable clamping pliers and the handle of the parallel jaw adjustable wrench has been discarded and the jaws of the clamping pliers has been discarded resulting in a new and novel tool with some capabilities of both tools and in addition many new uses.
    Type: Grant
    Filed: October 15, 1990
    Date of Patent: March 10, 1992
    Inventor: Douglas A. Engel
  • Patent number: 4735418
    Abstract: Puzzles are comprised of linked loops, where the loops are made by first making flat strips of equilateral triangles by hinging the triangles together at their edges and then folding the strips at the hinges and then connecting the end triangles together to form a twisted loop that has the overall form of a flattened hexagon known in the literature of recreational mathematics as a hexaflexagon. The linked loops are linked hexaflexagons and the loops can be shifted and folded into many different 2 and three dimensional positions with respect to the loops they are linked to. The resulting linked loop puzzles have been now named as slipagons since they can be shifted by sliding loops with respect to the loops they are linked to as well as by folding. The loops can be linked in many ways to form puzzles of greatly varying difficulty where the object of the puzzle can be to get from one shifted geometric form to another or to get a figure drawn on the loops of the puzzle into some given arrangement.
    Type: Grant
    Filed: March 6, 1987
    Date of Patent: April 5, 1988
    Inventor: Douglas A. Engel
  • Patent number: 4487417
    Abstract: An amusement device for selectively interchanging or transferring coded pieces from one storage element to a second adjacent storage element is disclosed. The two storage elements are connected to each other for relative rotation. The coded pieces are transferred by aligning one or more storage space or cavity containing a coded piece, in one storage element with like storage spaces or cavities in the adjacent storage element and inverting the device. The storage cavities are configured to allow a prearranged relationship between coded pieces upon rotational alignment of storage cavities lying on the same radius from the axis of rotation. Self-contained games and multiple puzzle configurations are achievable by sequential rotation, alignment and inversion of storage cavities.
    Type: Grant
    Filed: September 28, 1982
    Date of Patent: December 11, 1984
    Inventor: Douglas A. Engel
  • Patent number: 4415158
    Abstract: Puzzles, including both two dimensional and three dimensional versions, are comprised of movable segmented segments on a base. In various embodiments the base is a sphere. The segmented sections form geometric figures and each geometric figure has a common segmented section with another geometric figure. In the two-dimensional version the geometric figure is in the form of a circle. In the three-dimensional versions the geometric figure is in the form of a sphere; a square, with the segmented sections forming a cube; a triangle, with the segmented sections forming tetrahedron; or a pentagon, with the segmented sections forming a dodecahedron.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: November 15, 1983
    Assignee: General Symmetrics, Inc.
    Inventor: Douglas A. Engel
  • Patent number: D364663
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: November 28, 1995
    Inventor: Douglas A. Engel
  • Patent number: D396658
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: August 4, 1998
    Inventor: Douglas A. Engel