Patents Represented by Attorney, Agent or Law Firm Polasek, Quisenberry & Errington
  • Patent number: 7819611
    Abstract: A rotary cutting tool is provided for cutting an opening in a sheet of material (e.g., drywall) around a pre-installed item (e.g., an electrical box). The cutting tool may include a shaft, at least one cutter, a guide tip and a shoulder formed by a lower edge of the cutter adjacent the guide tip. The shoulder may have a width that corresponds to the width of a wall of the pre-installed item. The width of the shoulder may be equal to the width of the wall, or it may be slightly greater than the width of the wall. The guide tip may include a bearing to prevent marring of the wall of the item when the guide tip is rotating and in contact with the wall. An adjustable collar and corresponding bearing may also be disposed around the shaft for controlling a preferred cutting depth of the cutter. The cutting tool may be engaged with any suitable rotary tool, including one having an adjustable table for controlling a preferred cutting depth of the cutter.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: October 26, 2010
    Inventor: Lonnie Cox
  • Patent number: 7572084
    Abstract: A skewed end assembly for connection to an arch culvert structure is provided. The assembly may generally include an arch-shaped inner skewed panel and a wedge member having a partially arch-shaped profile adapted for engagement with the inner skewed panel. The inner skewed panel may include a ledge that may include a plurality of threaded anchors. The wedge member may include a lip adapted for engagement with the ledge. The lip may include a plurality of apertures for receiving a plurality of threaded connectors adapted for threadable engagement with the corresponding threaded anchors in the ledge. Two assemblies, each comprising an inner skewed panel and a wedge member, are placed at opposed ends of an arch-shaped bridge or culvert structure to provide generally co-planar skewed ends to the structure such that it may be positioned at an angle in relation to a roadway such that the skewed ends are generally parallel to the roadway.
    Type: Grant
    Filed: April 27, 2006
    Date of Patent: August 11, 2009
    Assignee: Tricon Precast, Ltd.
    Inventors: David G. Robertson, John M. Ogorchock
  • Patent number: 6735604
    Abstract: The invention applies the economies of scale to data processing and provides automated methods of collecting, categorizing, indexing, storing and retrieving large amounts of data from a wide variety of sources. The invention discloses the use of location and industry templates to categorize documents and other data objects. Location and industry data for each document is translated into a set of assignment numerals that are used to create a header number. Each document or data object is indexed and stored in a data warehouse in accordance with the header number. Subsequently, documents and data objects are retrieved from the data warehouse using the index of header numbers and the location and industry templates.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: May 11, 2004
    Inventors: Arthur O. Miller, James A. Miller
  • Patent number: 6644358
    Abstract: An improved centrifugally-cast tube is provided, along with a related method and apparatus of making the tube. The tube includes a plurality of grooves and bosses that are mechanically machined into an interior surface of the tube, such as by a broaching process. The profile of grooves and bosses may be defined by a plurality of intersecting concave and convex radii. The tube is resistant to creep, carburization and metal dusting. The tube also has an enhanced heat transfer rate, and a desirable surface roughness. A method of making the tube is also provided. The method essentially consists of mechanically deforming the interior surface of the tube by passing a series of cutting inserts on support rings having incrementally-differing dimensions over the interior surface.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: November 11, 2003
    Assignee: Manoir Industries, Inc.
    Inventors: Joël Demarest, Gilles Verdier
  • Patent number: 6631767
    Abstract: A downhole flow control device is provided for remotely controlling fluid flow of production or injection fluids, and may offer the capacity to pass wireline tools therethrough. In a broad aspect, the device may include: a body member having a first bore extending from a first end of the body member and through an extension member disposed within the body member, a second bore extending from a second end of the body member and into an annular space disposed about the extension member, a first valve seat disposed within the first bore, and at least one flow port in the extension member establishing fluid communication between the annular space and the first bore; and a first sleeve member remotely shiftable within the first bore, and having a second valve seat adapted for cooperable sealing engagement with the first valve seat to regulate fluid flow through the at least one flow port.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: October 14, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: Ronald E. Pringle, Arthur J. Morris
  • Patent number: 6513594
    Abstract: In a broad aspect, the invention may include a subsurface safety valve for controlling a fluid flow through a well conduit. The valve may include a housing that has a bore and is disposed within an annulus defined by the space between the well conduit and the housing. The valve may also have a valve closure member that is movable between an open position and a closed position, and adapted to restrict the fluid flow through the bore when in the closed position. The valve may also include a flow tube that is moveably disposed within the housing and adapted to shift the valve closure member between its open and closed positions. The valve may also include a piston that is moveably disposed within a cylinder in the housing and in mechanical communication with the flow tube. The piston may have a first seal disposed adjacent an upper end of the piston, a second seal disposed adjacent a lower end of the piston, and a third seal disposed between the first and second seals.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: February 4, 2003
    Assignee: Schlumberger Technology Corporation
    Inventors: David E. McCalvin, Thomas M. Deaton
  • Patent number: 6491102
    Abstract: In a broad aspect, the present invention is a downhole hydraulic multiplexer, which is comprised of one or more piloted shuttle valves, and method of using. The invention takes one or more input signals from a surface control panel or computer, said signals may be electric or hydraulic, and converts said signals into a plurality of pressurized hydraulic output channels. The invention is shown in a variety of preferred embodiments, including a tubing deployed version, a wireline retrievable version, and a version residing in the wall of a downhole completion tool. Also disclosed is the use of multiple shuttle valves used in parallel or in series to embody a downhole hydraulic fluid multiplexer, controllable by and reporting positions of said shuttle valves to said surface control panel or computer.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: December 10, 2002
    Assignee: Camco International Inc.
    Inventors: Dwayne D. Leismer, Thomas G. Hill, Jr., Arthur J. Morris