Patents Represented by Law Firm Fetherstonhaugh & Company
  • Patent number: 5620563
    Abstract: A process of delignifying and bleaching a chemical wood pulp with hydrogen peroxide and dicyandiamide as an activator provides a higher degree of delignification and brightness of the pulp and overcomes problems of fiber degradation. The process comprises adding hydrogen peroxide and dicyandiamide as a bleaching activator to a chemical wood pulp slurry under alkaline conditions.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: April 15, 1997
    Inventor: Jianxin Chen
  • Patent number: 5467853
    Abstract: A child's activity case opens up to form a desk that sits on a child's lap. The activity case can be filled with toys, coloring books, crayons, etc., to keep a child occupied during times that children have to keep sitting such as in a car. The case comprises a flexible satchel made from fabric having a board member in a base of the satchel. Opposing flaps are positioned on top of the satchel having zippers on either sides, the flaps overlap each other and have attachments to hold them together and retain the flaps closed. The flaps have inside pockets, and a carrying strap is provided to carry the case like a satchel.
    Type: Grant
    Filed: June 15, 1994
    Date of Patent: November 21, 1995
    Inventor: Wendy Pelletier
  • Patent number: 5333426
    Abstract: A multi-storey wood frame construction system of the beam and column configuration uses engineered wood products. Standard prefabricated column components permit beam and column construction system which heretofore has usually only been possible with steel when used in multi-storey buildings. The system comprises a plurality of prefabricated column components, all having the seine height for one storey of construction, the components spaced apart and supporting laminated beams, each component having at least two laminated vertical column members extending from top to bottom of the component, the vertical column members spaced apart and joined at the top and at the bottom of the component by laminated horizontal members.
    Type: Grant
    Filed: January 6, 1993
    Date of Patent: August 2, 1994
    Assignee: Forintek Canada Corporation
    Inventor: Erol Varoglu
  • Patent number: 5299967
    Abstract: A model figure connected to a remote pistol grip handle has one or more activity motions for the figure controlled from the handle. Unlike other model figures which have activity motions, there is a pivot arrangement between the handle and the figure that allows the operator to easily move the figure on a surface. The model figure has a middle torso portion with a pin extending therethrough, a model limb for the figure is mounted to pivot on the pin, a rotating pulley is mounted on the pin to pivot the limb, and the remote pistol grip handle is connected to the figure through a wand. There is a linkage system from a trigger mechanism on the handle to the rotating pulley so that movement of the trigger mechanism pivots the limb on the pin.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: April 5, 1994
    Inventor: John M. Gilbert
  • Patent number: 5244814
    Abstract: The presence of decay is determined in wood by testing a sample. The wood tested may be standing timber, cut timber or when coated in building structures. The testing occurs in very short time intervals so that tests can be carried out on timber in mills and the like. The method of testing includes heating a portion of a wood sample at a temperature in the range of about to C. to evaporate analytes from the wood, conveying the analytes in a sample gas flow into an ionizing chamber of an ion mobility spectrometer detector, ionizing the analytes within the ionizing chamber at a temperature in the range of about to C., generating an ion drift time signature in the detector, and comparing the signature with predetermined signatures representing decay in wood.
    Type: Grant
    Filed: May 20, 1991
    Date of Patent: September 14, 1993
    Assignee: Forintek Canada Corporation
    Inventors: R. James Barbour, Ludmila L. Danylewych-May, Roger Sutcliffe
  • Patent number: 5234747
    Abstract: A laminated veneer lumber product utilizes low density veneers and is able to provide an edge stiffness value or MOE of at least 2,000,000 psi. This is the same strength as attained with high density veneers. The product has adjacent surface layers formed of low density incised veneer sheets having a moisture content of at least about 6% or adjacent surface layers formed of low density incised veneer sheets impregnated with phenolic resin and dried to a moisture content not exceeding about 5%. The surface layers are positioned on both sides of adjacent core layers which are either formed of high density veneer sheets or are formed of low density incised veneer sheets impregnated with a phenolic resin and dried to a moisture content not exceeding about 5%. The surface layers of low density incised veneer sheets having a moisture content of at least about 6% are densified against the core layers by at least about 5%.
    Type: Grant
    Filed: February 8, 1991
    Date of Patent: August 10, 1993
    Assignee: Forintek Canada Corporation
    Inventors: Doanald C. Walser, Gary E. Troughton, Axel W. Andersen
  • Patent number: 5230188
    Abstract: The building entrance boot drain is similar in function to a shower-base, but is recessed into the floor inside an entrance to a house or building. An expanded metal grate is supported by the receptacle. At the center of the base of the receptacle, an opening leads to suitable plumbing fixtures which form a water-trap and thence a drain to the building's water-waste system. Snow and ice, melting off winter boots placed on the building entrance boot drain, forms water which is conveniently drained away into the building's water-waste system.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: July 27, 1993
    Inventor: Timothy H. Nurse
  • Patent number: 5146717
    Abstract: A hand tool for treating the outside surface of a cylindrical component such as a pipe or tube grips the outside surface and can be rotated by inserting a finger into a finger engagement and spinning the tool about the component. Plumbers and the like clean the outside surface of pipes by using abrasive cloth, and the hand tool provides a tool for treating the surface with less effort. The hand tool has a lower body with a pivot adjacent one end and a treatment surface adjacent the other end, the lower body has a finger engagement adjacent the one end to rotate the tool about the component. A top body has a spring to join the lower body allowing the top body to pivot, and has a guide position to guide the component in contact with the treatment surface, the spring applies a force between the component and the treatment surface as the tool is rotated.
    Type: Grant
    Filed: December 3, 1991
    Date of Patent: September 15, 1992
    Inventors: Josef Shemesh, William Z. Gelbart
  • Patent number: 4152079
    Abstract: Apparatus for dispensing thick liquid-like products in comparatively small amounts while simultaneously mixing therewith an appropriate amount of a selected one of several liquids. An instant and thorough mixing is accomplished by directing the product into a spinning cup while at the same time directing thereinto the selected liquid. The cup has a side wall close to but spaced from the wall of a dispensing passage in which the cup is located thereby forming a narrow annular mixing passage therebetween. The cup wall has orifices therein through which the product material and the liquid are flung by centrifugal force, the liquid and product being instantly and thoroughly mixed by this action and by spinning travel through the mixing passage.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: May 1, 1979
    Inventor: Edward D. Raitt
  • Patent number: 4130087
    Abstract: Starting bar apparatus for a starting gate structure and including a starting bar in one or more section extending across the stalls of the gate structure at ground level and adjacent the rear ends of the stall. A plurality of downwardly-inclined rigid links are swingably connected at upper ends to the gate structure and swingably connected at lower ends to the starting bar. These links are inclined forwardly in the direction of the forward ends of the stalls so that when the bar is engaged by the hooves of horses starting out of the stalls, the links force the bar firmly into the ground so that it does not give or slip rearwardly relative to the horses.
    Type: Grant
    Filed: June 7, 1977
    Date of Patent: December 19, 1978
    Inventor: Samuel G. Dunn
  • Patent number: 4125258
    Abstract: Apparatus to be used for exercising the limbs, and particularly the legs. The apparatus includes a support upon which a person lies with his legs extending beyond an end thereof and resting on a pair of operating bars. Each bar projects from beneath the support and has at its inner end beneath the support a cam mounted to rotate around a central point, these central points being located approximately in line with the hip joints of the person on the support. A resistance in the form of a weight is connected by a flexible connector to each cam so that when the user's legs are spread apart to move the operating bars in the same direction, this movement is resisted by weight. By adjusting the connections of the flexible connectors to the cams, the weight can be made to resist the movement of the bars towards each other. The length of the strokes or movements of the operator bars away from or towards each other is adjusted by adjusting the connection of the flexible connectors to the cams.
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: November 14, 1978
    Inventor: James A. McArthur
  • Patent number: 4111797
    Abstract: A movably mounted receptacle having perforations therein with hollow spigots connected to the receptacle in registry with the perforations and projecting substantially downwardly therefrom, these spigots being moved through a bed of the particulate material in a receiver while particles of the material move through the spigots. The spigots discharge the particles moving therethrough into the bed and agitate the bed during movement therethrough. A fluid medium is directed in the materials in the receptacle, this medium going through the spigots with the material particles and overflowing from the receiver, carrying lighter particles with it while heavier particles concentrate towards the bottom of the bed. The separating method involving the use of this apparatus.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: September 5, 1978
    Inventor: Marvin J. Richter
  • Patent number: 4085630
    Abstract: Apparatus including upper and lower rolls between which a supported saw extends, the lower roll having an annular groove in the periphery thereof dividing it into two annular roll sections. Pressure means connected to the upper roll is operable to move the roll to press the saw against the lower roll, and power means is connected to the lower roll to rotate the later to cause the saw to move between the rolls. The lower roll is movable axially to bring either of the annular sections or the groove thereof into position opposing the upper roll.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: April 25, 1978
    Inventor: Christopher Williams
  • Patent number: 4079561
    Abstract: Metal roofing shingles including triangular shaped gable and eave starting shingles and square or rectangular shaped shingles covering the main body of the roof, the shingles being laid in courses whereby their edges run at an angle from the gable ends and eave edges upwards towards the ridge of the roof and under a ridge cap. Each of the shingles is secured to the underlying roof structure by a roofing nail passing through the uppermost corner of the shingle. The lowermost edges of the shingles are interlocked over and under the uppermost edges of adjacent shingles and have their lowermost corners overlapping the uppermost roofing nail secured corner of adjacent shingles. The edges of the triangular shaped shingles adjacent to the gable ends and eave edges of the roof are folded under and inwards in locking engagement with folded protruding edges of gable and eave starter lengths of formed sheet material which have been secured to the gable end and eave edges of the underlying roof structure.
    Type: Grant
    Filed: April 21, 1977
    Date of Patent: March 21, 1978
    Inventor: Louis Leonce Vallee
  • Patent number: 4078494
    Abstract: A letter press printing plate is disclosed for wrapping around a drum. The printing surface is formed with a light-sensitive material layer on a metal backing plate with two different levels, the high level representing areas of solid or dark tones of printing and the low level representing areas of light tones of printing. The printing plate overcomes the problem of even transfer of ink from the solid or dark tones of printing areas and the light tones of printing areas. A method of forming the letter press printing plate is also disclosed wherein a photo polymer layer on a backing plate is first exposed to a negative representing areas of solid or dark tones and light tones of printing. The photo polymer layer is then dissolved away to the backing plate in areas where no printing occurs and formed into a two-level printing surface with the areas of solid or dark tones being at a high level and the areas of light tones being at a low level.
    Type: Grant
    Filed: February 4, 1976
    Date of Patent: March 14, 1978
    Assignee: STANMont, Inc.
    Inventor: Howard W. Gregory
  • Patent number: 4066125
    Abstract: There is disclosed a means for use in plugging a well including a flexible plug member having a series of alternating long and short fingers radiating outwards from a central area, the fingers having projections for engaging with the wall of the well and together forming a cup-shaped plug to hold concrete poured into the mouth of the well to provide a plug.
    Type: Grant
    Filed: February 8, 1977
    Date of Patent: January 3, 1978
    Inventor: Peppino Bassani
  • Patent number: 4063866
    Abstract: A machine for manufacturing concrete building blocks faced with a decorative material is provided with a mold having a wall which is removable to expose a face of a freshly cast block. The material is arranged on a horizontal panel alongside the block and this panel is pivoted into a vertical position to apply the material to the exposed face of the upright block. A clamping and vibrating action is applied to the panel to further embed the material in the vertical face.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: December 20, 1977
    Inventor: Manfred A. Lurbiecki
  • Patent number: 4055256
    Abstract: Method and apparatus whereby a predetermined number of packages are moved over a cushion of air into a horizontal row, following which the row is deposited on an elevator which is then depressed a distance equal to the thickness of the packages. This is repeated until a desired number of rows of packages are deposited on the elevator thereby forming the packages into stacks, following which the stacks are moved laterally off the elevator on to a conveyor. The elevator is moved successively to shift the stacks into a position where they can be fed into a carton packaging machine.
    Type: Grant
    Filed: October 14, 1975
    Date of Patent: October 25, 1977
    Inventor: Hans Hagedorn
  • Patent number: D315716
    Type: Grant
    Filed: August 29, 1989
    Date of Patent: March 26, 1991
    Inventors: Carl B. Erickson, Eric B. Erickson
  • Patent number: D347575
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: June 7, 1994
    Assignee: Advance Wire Products Ltd.
    Inventor: Bruce K. Davis