Patents by Inventor Andrew Abbott

Andrew Abbott 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: 8379698
    Abstract: A circuit for transmission and reception of multi-channel communications is disclosed. The transmitter path includes a digital modulation circuit receiving multiple channel binary data, and for each channel generating a digital representation of the data. A digital-to-analogue (D/A) conversion circuit (140-146) is provided for each data channel. Each D/A conversion circuit receives and converts respective channel digital representations to produce a resultant band limited analogue signal (148-154). The band limitation arises due to a characteristic of said channel digital representations. A bandpass filter (156-162) receives and filters each analogue channel signal. The band width to the start of the stop band of each bandpass filter is wider than a respective band limited analogue channel signal and wider than the Nyquist bandwidth arising from the sampling rate of said D/A conversion circuit. In this way, signal power in unwanted Nyquist zones is effectively removed.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: February 19, 2013
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Boyd McGregor Murray, David Andrew Abbott, Joseph Abraham Pathikulangara, John Bunton, Valeriy Dyadyuk
  • Publication number: 20100142598
    Abstract: A circuit for transmission and reception of multi-channel communications is disclosed. The transmitter path includes a digital modulation circuit receiving multiple channel binary data, and for each channel generating a digital representation of the data. A digital-to-analogue (D/A) conversion circuit (140-146) is provided for each data channel. Each D/A conversion circuit receives and converts respective channel digital representations to produce a resultant band limited analogue signal (148-154). The band limitation arises due to a characteristic of said channel digital representations. A bandpass filter (156-162) receives and filters each analogue channel signal. The band width to the start of the stop band of each bandpass filter is wider than a respective band limited analogue channel signal and wider than the Nyquist bandwidth arising from the sampling rate of said D/A conversion circuit. In this way, signal power in unwanted Nyquist zones is effectively removed.
    Type: Application
    Filed: September 25, 2007
    Publication date: June 10, 2010
    Applicant: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Boyd McGregor Murray, David Andrew Abbott, Joseph Abraham Pathikulangara, John Bunton, Valeriy Dyadyuk
  • Patent number: 7293939
    Abstract: A floating moored oilfield production structure for deepwater application. An apparatus and a method for the construction and installation of floating oilfield production structures, wherein the deck structure is supported by multiple pairs of inclined buoyant legs which in turn support a subsurface damping plate structure for reducing the motions of the platform. The structure initially is initially constructed in a first configuration in relatively shallow water and then towed to a deepwater location where it is reconfigured to its operational configuration. The major structural components are joined by selectably operable pin connections.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: November 13, 2007
    Inventors: Phillip Andrew Abbott, Larry Rayner Russell
  • Patent number: 7037044
    Abstract: An extendable draft platform, having a deck and buoyancy columns installed in leg wells in the deck for vertical movement from a raised position to a submerged position, includes a connection arrangement for securing the columns to the deck when the columns are in the submerged position. In the connection arrangement, a plurality of first guide elements near the top of each column is engageable by a plurality of complementary second guide elements secured to the deck around each leg well when the column is lowered to its submerged position. A locking mechanism is operable between the columns and the deck when the first guide elements are engaged with the second guide elements. The first and second guide elements may be configured so that the connection between the deck and the columns may be enhanced by over-ballasting the columns and/or by welding the columns to the deck.
    Type: Grant
    Filed: September 27, 2004
    Date of Patent: May 2, 2006
    Assignee: Technip France
    Inventors: Qi Xu, Phillip Andrew Abbott
  • Publication number: 20040054231
    Abstract: Ionic compounds having a freezing point of no more than 50° C., formed by the reaction of at least one amine salt of the formula R1R2R3R4N+X− (I) with at least one hydrated salt, which is a chloride, nitrate, sulphate or acetate of Li, Mg, Ca, Cr, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb, Bi, La or Ce; wherein R1, R2 and R3 are each independently a C1 to C5 alkyl or a C6 to C10 cycloalkyl group, or wherein R2 and R3 taken together represent a C4 to C10 alkylene group, thereby forming with the N atom of formula (I) a 5 to 11 membered heterocyclic ring, and wherein R4 is hydrogen, or phenyl, or C1 to C12 alkyl or cycloalkyl group, optionally substituted with at least one group selected from OH, Cl, Br, F, I, phenyl, NH2, CN, NO2, COOR5, CHO, COR5 and OR5, wherein R5 is a C1 to C10 alkyl or cycloalkyl group, and X− is an anion capable of being complexed by the said hydrated salt.
    Type: Application
    Filed: August 11, 2003
    Publication date: March 18, 2004
    Inventors: Andrew Abbott, David L Davies, Glen Capper, Raymond K Rasheed, Vasuki Tambyrajah
  • Patent number: 6492132
    Abstract: The present invention concerns class II cytochrome P450s, electrochemical systems for assaying cytochrome P450 catalytic activity, apparatus and methods for same.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: December 10, 2002
    Assignee: University of Leicester
    Inventors: Gordon Roberts, Andrew Abbott, Paul Cullis, Farjad Ahmed, William Primrose
  • Patent number: 4055264
    Abstract: An elongated deck section having two rows of legs with several legs per row is fabricated with the legs hingedly mounted on footings adapted to receive fluid bearings and is transported from the fabricating yard to a dock head over a smooth concrete slab of minimal slope and thence longitudinally via fluid bearing adapted gang planks and tracks onto and along a barge disposed with its stern adjacent the dock head and grounded thereat, the platform being transported by placing fluid bearings under the footings which allow the section to be moved sideways, lengthways, or rotated or turned, as desired, the deck's horizontal truss stresses and the fluid bearing loads being controlled by actuating fluid elevators between each leg and the fluid bearing thereunder, the barge being initially ballasted so that change of ballast during loading is unnecessary to maintain minimal slope of the barge, the section then being anchored to the barge and the barge reballasted to float its stern and trim the barge preparatory to
    Type: Grant
    Filed: August 4, 1975
    Date of Patent: October 25, 1977
    Assignee: Brown & Root, Inc.
    Inventor: Phillip Andrew Abbott
  • Patent number: 4046657
    Abstract: An apparatus and method of assisting the driving of a hollow pile into soil by electro-osmosis in which electrical direct current is directed downwardly through the inside of the pile, out the bottom of the pile, and up the outside of the pile whereby water on the inside of the pile moves through the soil thereby making the pile easier to drive into the soil. The method includes insulating an electrically conductive pile preferably on the inside with an electrical non-conductor and placing water inside of the hollow pile. An electrical circuit having a d-c power source, and an anode and cathode is provided in which the anode is placed in the water inside of the hollow pile and the cathode is placed outside of the hollow pile and in electrical communication with the outside of the electrical conductive pile whereby an electrical circuit is formed between the anode and cathode through the water in the inside of the pile and through the bottom of the pile.
    Type: Grant
    Filed: May 5, 1976
    Date of Patent: September 6, 1977
    Inventor: Phillip Andrew Abbott
  • Patent number: D949503
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 19, 2022
    Inventor: Andrew Abbott
  • Patent number: D949504
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: April 19, 2022
    Inventor: Andrew Abbott