Patents Assigned to Weyerhaeuser Company
  • Patent number: 7304740
    Abstract: Methods are provided for detecting compression wood, blue stain, or pitch in lumber. A light beam is projected towards the wood sample. Line or area cameras acquire images of light that is reflected from the wood sample. Based on the intensity of the reflected light at one or more locations on the wood sample, compression wood, blue stain, or pitch may be detected.
    Type: Grant
    Filed: September 27, 2006
    Date of Patent: December 4, 2007
    Assignee: Weyerhaeuser Company
    Inventor: Thomas J. Taylor
  • Patent number: 7303114
    Abstract: A three part container having a bottom wall and two walls in one part, and a wall in each of the other parts. The heights of the walls are substantially equal. A closure member and a handle member are attached to the walls in each of the other parts. There is a hand hole in the handle member. At least one of the closure members has a length greater than one-half the width of one of the walls of the one part, and the combined length of the closure members is greater than the width of one of the walls of the one part. A closure panel is attached to each of the walls of the one part. Attachment flaps are attached to the sides of each of the closure panels.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: December 4, 2007
    Assignee: Weyerhaeuser Company
    Inventors: David J McKenna, Sr., Jeffrey M Gardner
  • Publication number: 20070276640
    Abstract: The present invention is directed towards methods for the classification of plant embryos by the application of one or more classification algorithms to analyze digitized images and absorption, transmittance, or reflectance spectra. The methods are generally applicable and emphasize the importance of acquiring and using as much image and absorption, transmittance, or reflectance spectral information as possible, based on objective criteria. The present invention allows automated selection of embryos most suitable for further culture and rejection of those seen as less suitable.
    Type: Application
    Filed: August 8, 2007
    Publication date: November 29, 2007
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Roger Timmis, Mitchell Toland, Timnit Ghermay, William Carlson, James Grob
  • Patent number: 7300965
    Abstract: A mixed polymer network made from reacting a carboxyalkyl cellulose and a synthetic water-soluble polymer with a crosslinking agent.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: S. Ananda Weerawarna, Carole W. Herriott, Richard A. Jewell, Mengkui Luo, Amar N. Neogi
  • Patent number: 7300546
    Abstract: A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with dideyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7300705
    Abstract: Methods for esterifying hydroxyl groups in cellulose, hemicellulose, and lignin in wood are described, wherein the wood is chosen from loblolly, slash, shortleaf, longleaf or radiata pines. Methods can include solvent drying techniques and heating provided by electromagnetic radiation, such as microwave, and radiofrequency. Products made from the methods are described that have greater decay resistance and dimensional stability as compared with non-esterified wood products.
    Type: Grant
    Filed: June 23, 2003
    Date of Patent: November 27, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Amar N. Neogi, Gary D. Peterson, James Shaw
  • Publication number: 20070269096
    Abstract: The present invention is directed towards methods for the classification of plant embryos by the application of one or more classification algorithms to analyze digitized images and absorption, transmittance, or reflectance spectra. The methods are generally applicable and emphasize the importance of acquiring and using as much image and absorption, transmittance, or reflectance spectral information as possible, based on objective criteria. The present invention allows automated selection of embryos most suitable for further culture and rejection of those seen as less suitable.
    Type: Application
    Filed: August 3, 2007
    Publication date: November 22, 2007
    Applicant: WEYERHAEUSER COMPANY
    Inventors: Roger Timmis, Mitchell Toland, Timnit Ghermay, William Carlson, James Grob
  • Patent number: 7296698
    Abstract: A blank for a stackable shelf and the shelf formed from it. The blank comprises a substantially rectangular shelf member having attached walls. Each of the sidewalls has an integral extension which extends into and is detachable from the shelf member. The height of the integral extension is greater than the height of the side wall. Each of the integral extensions has a transverse score line which divides the extension into an upper and a lower section. The height of the lower section is substantially equal to the height of said side wall.
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: November 20, 2007
    Assignee: Weyerhaeuser Company
    Inventor: Jack A. McClure
  • Patent number: 7297230
    Abstract: A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with dideyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: November 20, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7290353
    Abstract: This invention provides a dried singulated crosslinked cellulose pulp fiber product as well as an apparatus and a method for forming singulated, crosslinked, and dried fibers. In accordance with the process, a feed pulp containing a crosslinker is delivered to a jet drier. The jet drier singulates and dries the feed pulp. The singulated and dried fibers are collected from the jet drier. The feed pulp may be further treated with a treatment substance. The jet drier may be maintained at negative pressure. The product fibers may have low knot count, a low fines count, as well improved kink, curl, and twist. The apparatus for carrying out the process may include a pretreatment station for supplying the treatment substance, a pulp feed device designed for pulp, a pulp feed device designed for pulp and foam suspensions, and/or a fiber separation station having a vacuum conveyor.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: November 6, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Michael J. Yancey, Brian Wester, Michael David Vrbanac, Ramon Charles Dezutter
  • Patent number: 7291244
    Abstract: Methods for conveying, mixing, leveling, and flaking dewatered pulp to produce pulp flakes suitable to be used in a dryer. Methods for producing a consistent flow rate of pulp, and, for producing uniform pulp flakes in terms of pulp flake size and pulp flake moisture content. A method includes introducing a dewatered pulp to a rotating shaftless screw conveyor. The pulp is deposited from the screw conveyor onto a moving belt conveyor through a chute. The pulp is leveled with a rotary doctor located above the belt conveyor to produce a substantially even rate of mass flow of pulp along a length of belt conveyor. Uniform and consistent quantities of pulp per unit time can then be fed from the belt conveyor to a pulp flaker that then translates into an even rate of pulp mass flow to the dryer.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: November 6, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Ramon C. DeZutter, Christopher Q. Tveter
  • Patent number: 7290696
    Abstract: The embodiments of the present invention provide a blank foldable material that may be configured to form a container. When formed, the container is self-locking and includes top panel assemblies that form additional bearing surfaces. The blank is configured to form a container that includes corners having multiple thicknesses. However, despite the multiple thickness of the corner assemblies, the panels are only adhered in one location per corner. The single adhesion/corner arrangement provides a multi-wall corner arrangement that is strong, yet has flexible applications. The single adhesive/corner adds vertical stacking strength and lateral stability between the panels. The unique approach of only adhering at one place per corner is a space and cost saving improvement that maintains a container integrity and usefulness.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: November 6, 2007
    Assignee: Weyerhaeuser Company
    Inventor: Jack A. McClure
  • Patent number: 7289646
    Abstract: The invention provides a method and system for simultaneously imaging multiple views of a plant embryo. First, the method provides a camera for receiving a first view of a plant embryo (e.g., the top view). Second, the method provides a first reflecting surface for receiving and reflecting a second view of the plant embryo (e.g., the side view) toward the camera. Thus, the method permits simultaneously imaging both the first and second views of the plant embryo. In one embodiment, the method further provides a second reflecting surface for receiving and reflecting a third view (e.g., the end view) of the plant embryo toward the camera, so that the camera can simultaneously image the first, second, and third views of the plant embryo. The invention reduces the time required to obtain multiple views of an embryo, which can then be analyzed to classify the embryos according to their germination vigor.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: October 30, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Ed Hirahara, Paul Spencer
  • Patent number: 7286956
    Abstract: Methods are provided for estimating the dimensional stability of a wood product from simple algebraic functions of moisture, shrinkage rates and grain angles observed on outer surfaces. The methods may employ single or multiple sensor group measurements. The quantitative relationship between crook or bow stability and lengthwise shrinkage can be established using mathematical operations, rather than sophisticated and complicated finite-element modeling methods. In particular, the curvature of any board length-segment or section, expressed as the second derivative of the crook or bow profile, can be determined from a linear combination of the shrinkage values of the coupons including that segment or section. The overall crook or bow profile of the board can be determined from a section-by-section double-integration of those second derivative values.
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: October 23, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Stanley L. Floyd, Chih-Lin Huang, Mark A. Stanish
  • Patent number: 7279226
    Abstract: A composition and method for inhibiting stain formation in a floor covering. The composition includes a copper glycine complex in combination with magnesium hydroxide and a carrier. The composition can be advantageously applied to a wood-based substrate upon which a floor covering is overlaid. Flooring assemblies that include the composition are also provided.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: October 9, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Jerry D. Izan, Charles E. Lewis, Tri Tran, Daniel V. Hanson
  • Patent number: 7255262
    Abstract: The present invention is directed to a divided bulk bin container and blank. In accordance with the present invention, a single sheet of foldable material is cut and scored to define container blank. The blank includes a pair of opposed first side panels and a pair of a opposed second side panels coupled with the first side panels. An outer bottom panel is connected with said first side panel and an inner bottom panel is connected with said second side panel. Also, a first divider panel is connected with said outer bottom panel and a second divider panel is connected with said inner bottom panel. Further, a divider slot is formed in said inner bottom panel and said second divider panel. The nature of the divider slot is such that the width of said divider slot is at least twice the thickness of the first divider panel.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: August 14, 2007
    Assignee: Weyerhaeuser Company
    Inventor: Alan J. Duyst
  • Patent number: 7256910
    Abstract: A method is described for overcoming the adverse visual effect of misregistered ink planes in multiple ink color prints. Color separations are initially made in a normal fashion. The separation carrying the greatest object detail is then chosen as a luminance or achromatic channel. This may be used as is or preferably it is sharpened using a high pass filter. Normally this separation will be black. However, it may be a surrogate color for black, particularly if only two or three separations are made. Object detail in all other separations (chrominance separations) is degraded, usually by a low pass filter such as a Gaussian blur. The printed image formed when the separations are recombined in a conventional manner is remarkably visually tolerant of misregistration of the various ink planes in the image.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: August 14, 2007
    Assignee: Weyerhaeuser Company
    Inventor: David L. Lee
  • Patent number: 7244338
    Abstract: A cellulose fiber having extended biostability and the method of its manufacture are described. While prior treatments of cellulose with biotoxic metal compounds have given improved resistance to decay, these treatments have not been entirely satisfactory where the fiber had to be refined before use. Refining energy was very high and fiber length loss was substantial. Treatment of cellulose fiber with didecyldimethylammonium chloride (DDAC) or bromide (DDAB), these materials in combination with low levels of copper, or low levels of copper alone, has given a product with very good biostability without a major increase in refining energy or loss of fiber length. The treated fiber is particularly advantageous as a reinforcing component for cement board products.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: July 17, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Richard A. Jewell, Julie A. Reimer
  • Patent number: 7228658
    Abstract: A method of attaching an end seal to a manufactured seed is provided. The method includes providing a manufactured seed having an open end and inflating a sealing material to form an enclosure having an interior surface. The method also includes placing the enclosure into contact with the open end of the manufactured seed and attaching the enclosure to the manufactured seed to seal the open end of the manufactured seed.
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: June 12, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Edwin Hirahara, Paul G. Gaddis
  • Patent number: 7225970
    Abstract: The embodiments of the present invention provide a blank of foldable material that configured to form a container. When formed, the container is completely self-locking. Additionally, when the blank is formed with any number of known liquid-proof sheet material or coatings, the container provides a leak/sift proof structure. Also, the container provides for all inside surfaces to be smooth, flat and interrupted surfaces. Further, as the hand hold cutouts are covered by end panels, the container retards hot or cold inside temperature degradation, which make the container ideal for use as a low-cost cooler or the like.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: June 5, 2007
    Assignee: Weyerhaeuser Company
    Inventor: Nicholas A. Philips