Patents Represented by Attorney Anthony Asquith

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  • Apparatus for measuring and recording data from boreholes
    Patent number: 6158276
    Abstract: For collecting data from a water well, down-hole sensors are housed in modules. The modules are arranged to be screwed together in-line to form a vertical string. Mechanically, the modules are secured to each other only by the screw connection. Data is transmitted to the surface on a 2-wire cable, there being no other electrical connection between the modules and the surface. The modules are connected in multi-drop configuration to the 2-wire cable. Data is transmitted using time-division multiplexing.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: December 12, 2000
    Assignee: Solinst Canada Limited
    Inventors: Ronald Ernest Russell Patey, Kevin Allan Dooley, Douglas James Belshaw
  • Wastewater treatment method and apparatus
    Patent number: 6153094
    Abstract: The treatment system is for use with septic tank effluent. Water is passed over polyurethane foam blocks, arranged in a heap so that air can circulate freely around the blocks. The size of the foam cells is small enough that water soaks into the blocks and is retained therin. The foam is soft and easily deformed. At the points of block-to-block engagement, the blocks deflect and conform to each other, giving rise to a large contact area through which water can pass between blocks.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: November 28, 2000
    Assignee: E. Craig Jowett
    Inventors: E. Craig Jowett, Michaye Louise McMaster
  • Filter screen pack for extrusion die
    Patent number: 6153093
    Abstract: The filter intercepts dirt emanating from a molten-polymer extruder. The filter is clamped between perforated support plates, and a rotor sweeps the holes in the upstream plate. The rotor defines a cavity which communicates with a small sector of the holes at any one time. The cavity is openable to drain, via a valve. The melt is under high pressure, to which the cavity is exposed. The rotor is rotated by a drive-shaft, and the drain is located co-axially with the drive-shaft.
    Type: Grant
    Filed: May 28, 1997
    Date of Patent: November 28, 2000
    Inventor: Alfredo Bentivoglio
  • Trim attachment system
    Patent number: 6148584
    Abstract: Wood trim is attached to the wail around a door, window, etc, by means of an extruded plastic attachment strip. The strip is formed with a hollow box-shaped protrusion which serves as a spline, which engages a complementary groove in the profile of the wood trim. A bar formed in the back of the strip profile serves to hold the strips in complementary slots in the door jamb.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: November 21, 2000
    Inventor: Bryan A Wilson
  • Wood trim system
    Patent number: 6148883
    Abstract: Door frames, window frames, baseboards, corner mouldings, etc are trimmed with solid wood, eg oak, trim pieces. The trim pieces are fitted over splines which are screwed to the wall. A jig enables the splines to be located accurately in position. The spline includes no beads, snaps, or other features that would require the oak trim section to flex; instead, the trim is secured by the friction arising from the fit of the spline into a groove cut into the rear face of the trim section. In a variation, a pair of parallel grooves are provided, together with a corresponding pair of splines, which are mounted on a web.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: November 21, 2000
    Inventor: Bryan Alexander Wilson
  • Insulated transit bag
    Patent number: 6139188
    Abstract: The insulated transit bag is made from bubble-wrap material, bonded to aluminum foil. The material is doubled-over, folded, and heat welded to form sealed seams. The bag is used for transporting heat-sensitive medicines etc.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: October 31, 2000
    Inventor: Domenico Marzano
  • Nozzle for producing a high-impact long-range jet from fan-blown air
    Patent number: 6098904
    Abstract: Blow-off nozzles are used for creating a high-energy air blast, for drying metal panels prior to painting. Depth or reach of penetration (in the atmosphere) is important. A bullet is provided in the center of the nozzle. The bullet is aerodynamically faired, for minimum drag. The effect of the bullet is to create a low pressure area in the jet downstream of the nozzle. The low pressure area serves to hold the jet together, preventing spreading, to a degree that enables a significant increase in penetration distance. The bullet is mounted on faired arms, which are secured to the walls of the nozzle.
    Type: Grant
    Filed: March 10, 1999
    Date of Patent: August 8, 2000
    Assignee: Air Force 1 Blow Off Systems Inc.
    Inventors: Kirk John William Davidson, John Frederick Hayden Davidson
  • Road service attachment for dump-truck
    Patent number: 6089785
    Abstract: A box of the attachment apparatus receives asphalt from the discharge chute of a forward-tip dump-truck. The asphalt is deposited on the rod in a stripe, and is compacted by being rolled over by the rear wheel of the truck. The thickness of the stripe is set by side-runners, which hold the bottom of the box clear of the road. The weight of the asphalt-laden box loads the side-runners against the road, and permits pre-compaction, in which the stripe of asphalt is partly pre-compacted before being rolled over by the wheel. Where the truck has double rear wheels, the stripe can be as wide as the width of both wheels. The box is carried on a parallelogram linkage, which is mounted from the chassis of the truck.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: July 18, 2000
    Inventor: Douglas Jerome Bergman
  • Electric powered vehicle
    Patent number: 6089341
    Abstract: The lawn and garden tractor has independent electric motors for both driven wheels. The motors are combined with reduction gearboxes, and the wheel is mounted on the output shaft of the gearbox. There is no mechanical axle connection. The power to the motors is controlled by an automatic controller as to wheel speed, power being increased/decreased in accordance with whether the wheels are under-running or over-running relative to manually-controlled speed setting. Steering is controlled by potentiometer on a mechanical steering wheel, or by joy-stick control. The joystick may be on the tractor, or remote. The drive system is suitable also for four-wheel drive.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: July 18, 2000
    Inventor: Newton Roy Gingerich
  • Electrochemical treatment of water contaminated with nitrogenous compounds
    Patent number: 6083377
    Abstract: Waters contaminated by nitrogenous compounds such as nitrate, ammonium, etc., are treated by electrochemical transformation of the contaminant to nitrogen gas. Electrodes are placed in the contaminated water to form a cell, in which the voltage of one of the electrodes is set to the Eh voltage at which nitrogen gas is thermodynamically favored. The cell may be electrolytic or galvanic.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: July 4, 2000
    Assignee: ENPAR Technologies Inc.
    Inventors: Mei Lin, Gene S Shelp, Ward Chesworth
  • Dog leash with bag container
    Patent number: 6073590
    Abstract: A dog leash is equipped with a container, for containing a supply of plastic grocery bags, for collecting pet excrement. The container is stitched to the leash just below the hand-loop of the leash. The container is of light-weight fabric or material, and takes its structure from being stitched to the leash, lengthwise along the container. The open mouth of the container is wrapped around the leash and secured with Velcro.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: June 13, 2000
    Assignee: The Polding Partners Inc.
    Inventor: Janet Marie Armstrong Polding
  • Heated die lips system
    Patent number: 6065953
    Abstract: The die-lip is heated by an electric heater cable wrapped into a groove positioned close to the lip. The heater cable is pressed radially against the lip-side of the groove by many individual Vee-shaped spring-clips, which are arranged in a contiguous series around the circumference of the groove.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: May 23, 2000
    Inventor: Alfredo Bentivoglio
  • Containment of water treatment medium
    Patent number: 6063268
    Abstract: The treatment medium comprises 5 cm cubes of soft, open-cell foam. The container basket is made from plastic mesh, arranged as a cylinder, 80 cm diameter, 100 cm high. The blocks are packed semi-tightly into the basket. The dirty water to be treated is sprinkled onto the foam from above. The container supports the saturated foam blocks in the air, and air circulates freely through the mesh. The container and blocks may be compressed for transport. A separate sub-container holds the top-most blocks, for easy replacement. Cleaned water drains out underneath the baskets. The baskets stand up on their own, and there is free service-access to the baskets during operation, for service. In place of the soft foam, other treatment materials include peat, absorbent fabrics, mineral wool, etc. Forming the treatment material into separate small blocks is preferred.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: May 16, 2000
    Inventor: E. Craig Jowett
  • Agricultural implement with down-force control
    Patent number: 6044916
    Abstract: Down-force control is provided by a top-link, which presses down the rear end of a tool-bar carrying multiple rows of seeder tools. The height of the tool bar is set front and rear during operation. The top-link includes a hydraulic ram. The ram is supplied with pressure from a pressure-reducing-relieving valve, whereby the downward-force on the rear of the tool-bar remains constant during operation. The tool bar has side wings which are pressed down by a pressure that is regulated by the same valve. The system allows the seeder to maintain constant implantation depth, even over uneven ground.
    Type: Grant
    Filed: July 10, 1997
    Date of Patent: April 4, 2000
    Assignee: Flexi-Coil Ltd.
    Inventor: David Robert Hundeby
  • Securement of head rest support into automobile seat frame
    Patent number: 6035516
    Abstract: The headrest support tubes are secured to the seat frame member not by the usual welding, but by gripping the web of the member between two rings or lock-beads swaged into the metal of the tube. The first ring is swaged-out by compressing the tube. The tube, with the one ring, is then assembled into a through-hole in the web of the frame member. Then, the second ring is swaged into the metal of the tube, on the other side of the web, and the web lies gripped between the rings. The seat frame member may be an I-section extrusion, or a round tube with localised squeezed-flat areas, flanked by flanges.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: March 14, 2000
    Assignee: Bend All Manufacturing Inc.
    Inventor: Horst Udo Petersen
  • Treatment of phosphorus in septic tank effluent
    Patent number: 5997747
    Abstract: Treatment of sewage water contaminated by phosphorus is accomplished by passing the water through iron oxide. The iron oxide is placed in close proximity to soft resilient open-cell foam, which serves to slow down, and even out, the rate of travel of the water while under treatment, thus increasing the residence time.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: December 7, 1999
    Inventor: E. Craig Jowett
  • Multi-layer blown-film extrusion die
    Patent number: 5984657
    Abstract: This invention relates to a Multi-Layer Blown-Film Extrusion Die. An Extrusion Die is a key component of extrusion equipment, used in manufacture of Blown film for packaging industry. Although this Extrusion Die relates to production of five or more layers of blown films, it can also be used for production of lesser number of layers. While in the conventional outside fed die, melt was to be conveyed around the die in a fanning-out configuration, in this invention the polymer melt is split into two streams, before being fanned or spread around the circumference. Polymer melt enters several spiral or helical grooves prior to joining the gap that enjoins melt with other layers of the melt streams. The dimensions of spiral grooves and lands are carefully calculated, keeping in view relevant factors such as melt viscosity, shear sensitivity temperature and pressure requirements etc.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: November 16, 1999
    Inventor: Alfredo Bentivoglio
  • Snap-in end fitting for pipes
    Patent number: 5979946
    Abstract: An oil-pipe for an auto-engine has a quick-connect coupling. The pipe has a cold-pressed end-shape, which includes a radial flange. A clip abuts the flange, and secures the coupling. The larger the area of the flange, the more secure the clip, and a recess formed into the wall of the pipe immediately behind the flange adds area to the flange without requiring that the flange have a large external diameter. The recess can be rolled in, or can be formed by cold-pressing.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: November 9, 1999
    Assignee: Bend All Manufacturing Inc.
    Inventors: Horst Udo Petersen, Alfred D. Napolitano, Jr.
  • Wastewater treatment method and apparatus
    Patent number: 5980739
    Abstract: The treatment system is for use with septic tank effluent. Water is passed over polyurethane foam blocks, arranged in a heap so that air can circulate freely around the blocks. The size of the foam cells is small enough that water soaks into the blocks and is retained therin. The foam is soft and easily deformed. At the points of block-to-block engagement, the blocks deflect and conform to each other, giving rise to a large contact area through which water can pass between blocks.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: November 9, 1999
    Assignee: E. Craig Jowett
    Inventors: E Craig Jowett, Michaye Louise McMaster
  • Mouldable pallet
    Patent number: D417765
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: December 14, 1999
    Assignee: Joseph Luciano Morello
    Inventor: Joseph Luciano Morello