Patents Represented by Attorney Bennett Jones LLP
  • Patent number: 7547029
    Abstract: A child transport vehicle comprising: a vehicle frame; displacement means depending from the frame; a vehicle attachment connector mounted on the vehicle frame and including a vehicle attachment connection site, the connector and the connection site may be configured to facilitate convertibility and usefulness of the vehicle.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: June 16, 2009
    Assignee: 634182 Alberta Ltd.
    Inventors: Daniel William Britton, Graham Alexander Lemee, Barry Dean Wylant, Antony William Stephen Gellion
  • Patent number: 7543634
    Abstract: A tubing string assembly is disclosed for fluid treatment of a wellbore. The tubing string can be used for staged wellbore fluid treatment where a selected segment of the wellbore is treated, while other segments are sealed off. The tubing string can also be used where a ported tubing string is required to be run in in a pressure tight condition and later is needed to be in an open-port condition.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: June 9, 2009
    Assignee: Packers Plus Energy Services Inc.
    Inventors: Jim Fehr, Daniel Jon Themig
  • Patent number: 7540325
    Abstract: A cementing apparatus for use in cementing operations using concentric tubing or drill string such as concentric drill pipe, concentric coiled tubing, and the like is provided having an isolation cementing tool and a cementing flow control means. Concentric tubing or drill string adapted for use in cementing a well is further disclosed. A method for cementing a well using concentric tubing or drill string is also provided.
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: June 2, 2009
    Assignee: Presssol Ltd.
    Inventor: James Livingstone
  • Patent number: 7533674
    Abstract: A device for retaining a tongue in a predetermined position, the device comprising, a flange having a first and second surface, the flange further including a protrusion extending from the first surface of the flange; and an aperture formed through the first and second surfaces of the flange, wherein the protrusion covers the aperture, whereby the protrusion form a hollow chamber, the hollow chamber is accessible through the aperture from the second side of the flange.
    Type: Grant
    Filed: February 28, 2002
    Date of Patent: May 19, 2009
    Inventor: Leslie Dort
  • Patent number: 7530800
    Abstract: A drivehead for driving a drive string of a rotary pump or motor includes a bearing housing including lubricating fluid therein, a driveshaft extending through the bearing housing and connectable into drive communication with the drive string, and a concentric pump disposed in the bearing housing about the driveshaft, the concentric pump selected to pump the lubricating fluid through the bearing housing as driven by the driveshaft.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: May 12, 2009
    Assignee: Kudu Industries Inc.
    Inventor: Jason L. Sieben
  • Patent number: 7527726
    Abstract: Processes and apparatuses for treating drilling fluid by passing the fluid through a separator including a clarifying zone and a thickening zone, the clarifying zone having inclined plates and the thickening zone having at least one wall with an angle of less than about 60°. The separator may optionally include an agglomeration zone and a removal zone.
    Type: Grant
    Filed: January 25, 2006
    Date of Patent: May 5, 2009
    Assignee: Q'Max Solutions Inc.
    Inventors: Kevin Slough, Troy Lupul
  • Patent number: 7523638
    Abstract: The present invention relates to the monitoring of gas concentrations possible in very low ranges (i.e. low ppb and even ppt ranges) and especially use thereof in environmental monitoring, exposure assessment, bomb detection, and health studies. The invention can use a spatial and temporal assessment of gas concentrations that enables the sources of the gas in question to be located and identified which is useful in environmental and health field but can also be applied to other fields an example of which is detecting and locating explosives. This technology can uses small, light weight, and low power components that allow for the monitor to be portable and even worn on a person as a personal monitor. This technology can be used in stationary monitors as well.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 28, 2009
    Inventor: Dennis Scott Prince
  • Patent number: 7505568
    Abstract: A multi-modal system providing for a single point of contact that can allow users to manage their personal contact information and contact lists, and connect to other users and businesses in a personalized, efficient, location-sensitive and organized manner. By accessing the system using any type of telephony-based device, a user can manage all of their personal and business contacts as well as perform generalized searches in public databases, such as white page and/or yellow page listings, or more personalized searches through databases of their business or personal contacts. A user may also, during a generalized search, go to a personalized search, and vice-versa. The system may also provide users with the opportunity to select certain businesses from their contact lists and allow these businesses to provide them with personalized data, either on demand or based on user-controlled permissions or areas of interest through various technologies including presence technologies.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: March 17, 2009
    Assignee: Call Genie Inc.
    Inventors: Todd Garrett Simpson, Christopher Edward Lugg
  • Patent number: 7500787
    Abstract: A bearing assembly for use with a mud motor includes a two-piece mandrel and a housing. Two radial bearings and a triple stack axial thrust on-bottom bearing are disposed between the mandrel and housing.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 10, 2009
    Inventor: Nicu Cioceanu
  • Patent number: 7498355
    Abstract: The present invention provides new derivatives of 4- or 5-aminosalicylic acid, and a pharmaceutical composition containing these derivatives of 4- or 5-aminosalicylic acid as active ingredients, useful for the treatment of intestinal diseases such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) and for the prevention/treatment of colon cancer. More particularly, these derivatives comprise a hydrogen sulfide releasing moiety linked via an azo, an ester, an anhydride, a thioester or an amide linkage to a molecule of 4- or 5-aminosalicylic acid. Furthermore, the present invention provides a process for preparing these compounds and their use for treating IBD and IBS and the prevention/treatment of colon cancer.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 3, 2009
    Assignee: Antibe Therapeutics Inc.
    Inventors: John L. Wallace, Giuseppe Cirino, Giuseppe Caliendo, Anna Sparatore, Vincenzo Santagada, Stefano Fiorucci
  • Patent number: 7473217
    Abstract: A method of treating pain or injury in close proximity to the vertebral column in a subject with acupressure and magnetic therapy comprising the steps of placing a first magnetic focus radiation pointer on the skin of the point superior to the central point of injury or pain and a second magnetic focus radiation pointer on the skin of the point inferior to the central point of injury or pain, holding the pointers in place for a sufficient period of time and affixing a magnet to the central point of pain or injury. A preferred embodiment comprises the step of placing the first magnetic focus radiation pointer on the skin on a third point inferior to the first point but superior to a second point while placing the second magnetic focus radiation pointer on a fourth point on the skin inferior to the second point. In another preferred embodiment, each of the central, first, second, third and fourth points overlay a vertebra.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: January 6, 2009
    Inventor: Choong-Youl Oh
  • Patent number: 7458303
    Abstract: A perforating gun loading bay is described for protecting adjacent areas from an accidental explosion during gun loading. The bay can be an insert-type arrangement or a stand-alone structure. The bay includes metal plate walls, a floor and a roof.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: December 2, 2008
    Assignee: Walker's Holdings Inc.
    Inventor: Troy S. Walker
  • Patent number: 7459012
    Abstract: There is disclosed herein a solution for removing a sulphur compound or carbon dioxide from a fluid and methods for its use, said solution comprising sulphuric acid, a metal at between about 0.05 to 10 percent by weight, an amine at between about 10 to 80 percent by volume and water. In one aspect, the sulphuric acid is in the form of a chelating agent and in another it is in the form of a derivative of a sulphur-based acidic compound. The sulphur compound may be hydrogen sulphide, carbonyl sulphide or a mercaptan. In one aspect, the method is practiced at temperatures significantly below zero. In another aspect, this invention is an acid/amine solution comprising sulphuric acid, sulphuric acid in the form of a chelating agent, or a derivative of a sulphur-based acidic compound and monoethanolamine. This solution may be used as a source of monoethanolamine.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: December 2, 2008
    Assignee: Diversified Industries Ltd.
    Inventors: Stephen Lee Davis, William Dale Storey
  • Patent number: 7454242
    Abstract: A tissue-sensing adaptive radar method of detecting tumours in breast tissue uses microwave backscattering to detect tumours which have different electrical properties than healthy breast tissue. The method includes steps for reducing skin reflections and for constructing a three-dimensional image using synthetic focusing which shows the presence or absence of microwave reflecting tissues.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: November 18, 2008
    Inventors: Elise Fear, Michal Okoniewski, Maria Stuchly
  • Patent number: 7444982
    Abstract: The invention is directed to a shut-off valve for stopping the air-flow to an engine. A butterfly valve disposed in an air passage is moved between a first open position and second closed position in a controlled fashion to prevent the build up un-burnt fuel in the event of the activation of the valve.
    Type: Grant
    Filed: February 9, 2007
    Date of Patent: November 4, 2008
    Inventor: Darren Rivet
  • Patent number: 7428846
    Abstract: An encoder shaft assembly includes a drive shaft having a drive gear, and an array of encoder units each having an encoder shaft and anti-backlash gears which engage the drive gear.
    Type: Grant
    Filed: December 21, 2006
    Date of Patent: September 30, 2008
    Assignee: Namco Machine & Gear Works Ltd.
    Inventor: Bernard Vukovic
  • Patent number: 7422061
    Abstract: Nonionic derivatized starch of varying degrees of substitution may be used as a fluid loss additive for well bore cementing operations. A well bore cementing composition may include a cement and a nonionic derivatized starch, the nonionic derivatized starch in a concentration in the cement to provide a fluid loss of less than 200 cc/30 min. A method for cementing subterranean zones penetrated by a well bore may include: providing a cement slurry including mix water, hydraulic cement and a nonionic derivatized starch as an additive for fluid loss control in well cementing applications; pumping the cement slurry into a well; and holding the cement slurry in place until it sets.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: September 9, 2008
    Assignee: Calfrac Well Services Ltd.
    Inventors: Alan L. Jones, David P. Horton
  • Patent number: 7418820
    Abstract: A wind turbine includes a closed loop hydrostatic transmission. The rotor is directly coupled to a low-speed high torque hydraulic motor, which is pressure-reversible to act as a pump. A variable displacement, pressure compensated hydrostatic transmission receives the hydraulic fluid output and drives a generator. The hydrostatic transmission and the generator may be compactly located in the nacelle of wind turbine tower.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: September 2, 2008
    Assignee: MHL Global Corporation Inc.
    Inventors: Alexander S. Harvey, David McConnell
  • Patent number: 7417071
    Abstract: A lipid composition includes triacylglycerols that include unsaturated fatty acids such as alpha linolenic acid and antioxidant moeities such as pyruvic acid.
    Type: Grant
    Filed: April 11, 2005
    Date of Patent: August 26, 2008
    Assignee: Alberta Research Council Inc.
    Inventor: Neena Gandhi
  • Patent number: D582918
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: December 16, 2008
    Assignee: Coolit Systems Inc.
    Inventor: Alexander Robin Walter Scott