Patents Assigned to The Weyerhaeuser Company
  • Patent number: 4124159
    Abstract: A container of paperboard construction of the type having a coating of thermoplastic material that acts as an adhesive to hold the container together. The container includes a tubular body section, a top closure, and a bottom closure. The tubular body includes first, second third and fourth contiguous side walls, each of which has an inner surface and an outer surface. The sealing flap is contiguous with the fourth side wall and is sealably secured to the outer surface of the first side wall for forming the tubular body. The top closure includes a pair of opposed roof panels, a pair of triangular end panels which are in-folded between the roof panels, two pairs of triangular fold-back panels, each pair of the fold-back panels being unitary with respect to one of the roof panels, an outer rib panel connected to each of the roof panels, and a pair of inner rib panels being connected to each of the fold-back panels.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: November 7, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Robert W. Schwarzkopf
  • Patent number: 4122582
    Abstract: A soft, loosely compacted mat of fibers is continuously formed atop a traveling conveyor. The fibers are deposited on top of the screen from an air-fiber flow within a suitably sized conduit having the same width as the desired width of the mat. A fiberizer is upstream from the mat-laying station and serves to fiberize sheets of incoming fiber. A plurality of sheets can be fiberized and as they are fiberized, the flow is entrained with air with differential pressures throughout the flow path from the fiberizing station to the conduit and mat-laying station. The structure of the fiberizer allows fiber sheets to be fiberized and then directs the fibers toward an adjustable diverging portion of the fiberizer shell from where the air-fiber mixture flows toward the mat-laying station. Variable mat widths can be formed by varying the conduit width and by varying the lateral dimension of the diverging portion of the fiberizer shell.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: October 31, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Raymond A. Van Vliet
  • Patent number: 4121968
    Abstract: An apparatus for improving the dewatering capability of a rotary drum vacuum filter or washer is described in which a suction box, independently supported above the filter drum, having an apertured outermost surface, and a vacuum means operating upon the box, is combined with a foraminous belt, tensioned to contact the suction box apertured surface and that portion of the drum surface not adjacent the box such that rotation of the drum causes the belt to rotate with the drum, sliding over the suction box. In operation, a cake or fibrous web that is formed upon the belt while it is in contact with the filter drum surface, partially submerged in a slurry of the material to be recovered, is subsequently subjected to the suction box vacuum means as the belt-supported web passes over the apertured surface. A discharge box at the trailing edge of the suction box is supplied with pressurized air to blow the cake or fibrous web from the foraminous belt surface at the product discharge point.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: October 24, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Roger Wells
  • Patent number: 4117755
    Abstract: A log sawing and transport system for relatively small logs has an infeed and loading station where logs are positioned in a centering device for aligning the logs with respect to the saws. Once the log is properly aligned for axial movement, a set of end dogs are actuated to hold the log in its prealigned position for transport. The dogs are mounted within axially movable carriage units that travel the length of the system serving to transport the log axially in a straight line. At the sawing station a plurality of angularly arranged saws are disposed to divide the traveling log into a plurality of elongated sector-shaped pieces. At least one selected saw may be adjustable with respect to the other saws in order to set angles for the sector-shaped pieces. Once the log has been divided into a plurality of sector-shaped pieces, an outfeed device collects the elongated sector-shaped pieces and transports them out of the system.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: October 3, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Earl Dean Hasenwinkle, Frank Wislocker
  • Patent number: 4111245
    Abstract: An apparatus for delimbing felled trees is described, wherein the trees are pulled individually or, in some cases, in bundles through the delimber. The delimber is provided with a base; a lower impact shear blade which is a notched steel plate supported upon the base, the notch bounding the under half circumference of a tree in the delimber; upper impact shear blades which are a pair of arcuate arms pivoted on the base, designed and arranged such that a tree resting in the notched plate is bound substantially about its upper half circumference by the arcuate arms pivoted into contact with the tree; and an activating plate, pivoted upon the base, interconnected with the arcuate arms such that the weight and force of a tree pulled through the delimber in contact with the notched plate, acts upon the activating plate causing it to pivot thereby pulling the arms into contact with the tree.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: September 5, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Carl M. McCrary, Robert D. Larsen
  • Patent number: 4111247
    Abstract: A process for making composite lumber products from generally cylindrical logs includes the steps of cutting a log radially into a plurality of first sector-shaped pieces having similar included angles and then preferably drying the sector-shaped pieces. After drying, the sector-shaped pieces are preferably machined to provide flat surfaces for subsequent gluing and rejoining steps. The sector-shaped pieces are then divided into at least two members where each plane of cut will be substantially parallel to the chord base plane with at least one of the resulting members having a thickness substantially equal to the thickness of the final composite lumber. At least two of the resulting members, substantially equal in thickness, are then rotated and bonded together along juxtaposed edges into a composite planar piece. Additional members substantially equal in thickness can be alternately rotated and edge bonded to the composite piece thereby forming wider widths.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: September 5, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Earl Dean Hasenwinkle
  • Patent number: 4111301
    Abstract: A one-piece, rectangular corrugated paperboard blank is folded into an L-shaped container body having top, neck and shelf panels reinforced by underlying flaps extending from L-shaped side panels to which front and back panels are connected along corner fold lines. The flaps include triangular portions respectively folded under the shelf and neck panels.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: September 5, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Austin L. English
  • Patent number: 4110431
    Abstract: A wet weather resistant binder composition and method, for adhering a plant treatment additive formulation that is substantially water-insoluble such as an insecticide, pesticide or ruminant repellent to plant foliage, is described. The binder composition is a dry powder mixture of a water-soluble polymer having a cis diol structure such as polyvinyl alcohol at about 30-70 weight percent and a water-soluble inorganic metal salt such as borax or chromic nitrate at about 2-10 weight percent, weight percentages based on the combined weight of the binder composition and additive formulation. The binder composition is dry-mixed with a dry powdered plant treatment formulation and broadcast onto plant foliage wherein, upon contact with water either already on the foliage or in subsequent rains, the binder composition dissolves and reacts to form an insoluble didiol complex matrix in which the insoluble additive formulation is bound and adhered onto the foliage to be treated.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: August 29, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Katashi Oita
  • Patent number: 4103819
    Abstract: A container formed by a tray within a second tray. This construction has good stacking strength because of the doubled side walls to prevent crushing of the product when stacked. The bottom of the container also has additional strength and does not sag. The double thickness end walls also provide insulation of the product so that produce stacked in the containers in the field do not become sunscorched or burned. The container also has indented side walls and an indented cover which allows air passage and cooling within the container even though the containers are stacked tightly together. Certain configurations have a manual cover locking feature which allows assembly enclosure in the field.
    Type: Grant
    Filed: December 13, 1976
    Date of Patent: August 1, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Herbert D. Muise
  • Patent number: 4101372
    Abstract: A method of joining a pair of elongated triangular-shaped pieces together by clamping includes the steps of bringing a pair of opposed face platens together to a predetermined thickness which is the thickness of the ultimately desired composite pair. A sliding edge platen is forced against the pair at a pressure sufficient to cause the two triangular-shaped pieces to slide relative to each other against a fixed edge platen to adjust for width and in order to bring the outer side faces of the pair into a substantially parallel relationship. At the end of the curing cycle the pressure is released from the face platens and sliding edge platen allowing them to move apart to their retracted positions and the composite pair may then be removed from the clamping system. A multi-opening clamping system has a plurality of individual clamping mechanisms mounted about the periphery of a rotating cylindrical frame.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: July 18, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Earl Dean Hansenwinkle, Clement Kuanoni, Frank Wislocker
  • Patent number: 4098401
    Abstract: In containers for packaging articles such as chairs there has been a problem of the container bulging under compression. These containers have a body portion and a neck portion above the body of the container. The present invention uses a two-piece construction to form the container. The first piece is a front section which has a front wall and two generally L-shaped side walls with closure flaps attached to these walls. Each of the side walls has a neck portion adjacent the rear edge of the wall. The second piece is a back section which has a back panel attached to the side walls along the rear edges by securing flaps; a neck top panel covering the top of the neck portion and secured to the side walls by securing flaps; a neck front panel covering the front of the neck portion and secured to the side walls by securing flaps; and a front securing flap secured to the closure flaps.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: July 4, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Jimmie L. Brown, Gordon L. Hinton, John T. Magazzu
  • Patent number: 4083474
    Abstract: An easily cleaned trigger-actuated gun of simplified construction for applying a multi-component resinous patching or adhesive compound system to a workpiece is described. An internal valve positioner, connected to the trigger mechanism by means of an operating rod, regulates flow of compound from the gun, between zero, intermediate or full flow rates in response to trigger position, by adjusting clearances between simple flow checking ball elements and their valve seats at each component inlet into the gun. The metered components flow through a static mixer tube, onto the workpiece.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: April 11, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Mearle J. Waite, Frank Wislocker
  • Patent number: 4077448
    Abstract: An edging system for machining the opposed rough edges of a workpiece into a parallelogram having the optimum angle of cut has an upstream sensing station to detect the maximum available width in order to remove the least amount of material. At the edging station a pair of laterally adjustable opposed cutter heads are mounted on a rotatable frame so as to have both the lateral distance between cutter heads and the angle the cutter heads make with respect to the top and bottom surfaces of the workpieces variable. Suitable conveying surfaces transport the workpiece into, through, and away from the edging station.
    Type: Grant
    Filed: December 31, 1975
    Date of Patent: March 7, 1978
    Assignee: Weyerhaeuser Company
    Inventors: Earl D. Hasenwinkle, Ernesto M. Pangilinan, Frank Wislocker
  • Patent number: 4068665
    Abstract: An improved diaper fastener system has particular application to a disposable diaper having a generally rectangular-shaped absorbent pad or filler disposed between a fluid-permeable cover sheet and a thermoplastic film backing sheet. The fastener system is comprised of a pair of pressure-sensitive fastening tapes incorporaing a standard release liner with each tape. The improvement includes anchoring one surface of the fixed portion of the fastening tape of the bottom surface of the cover sheet and then adhesively bonding the other surface of the fixed portion to a folded-over side marginal portion of the backing sheet. The release liner is positioned atop the cover sheet and extends laterally a distance that corresponds with the lateral dimension of the attachment portion of the tape.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: January 17, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Lawrence E. Nelson
  • Patent number: 4069018
    Abstract: Monitoring of the recirculated atmosphere of an oxygen pulping reactor to determine when the inflammability level of combustible gases in the reactor atmosphere has reached a predetermined percentage of the lower explosive limit (LEL) of the reactor atmosphere in terms of combustible organic vapors and carbon monoxide is disclosed. Continuous or discrete samples of the reactor atmosphere are taken at spaced regions, and the samples are applied to: (1) flame ionization detectors, which determine the concentration of combustible organic vapors (e.g., aliphatic, olefinic, aromatic, acetylenic, alcohols, aldehydes, ketones, etc.) in the samples; and, (2) carbon monoxide analyzers, which determine the concentration of carbon monoxide in the samples. The outputs of the flame ionization detectors are calibrated in terms of percent LEL for the contributing combustible organic vapors and, thus, provide percent combustible organic vapor LEL information.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: January 17, 1978
    Assignee: Weyerhaeuser Company
    Inventors: John D. Karna, Gregory K. Brock, Daniel M. Shellhammer
  • Patent number: 4067369
    Abstract: A whole tree extraction device is mounted on a prime mover. The extraction device is comprised of a load frame which is carried and supported by the prime mover. Slidably mounted on one side of the load frame is the power frame to which is attached at least one power cylinder for moving the power frame with respect to the load frame. Mounted on the power frame forwardly thereof is a vibrator frame to which is attached a pair of cooperating shearing blades together with a pair of cooperating gripping extractor arms. A pair of upper gripper arms are mounted on the load frame and open and close in response to a command signal independently of the shearing blades and gripping extractor arms. Means to vibrate the shearing blades and the gripping extractor arms relative to the power frame in a substantially vertical plane during the shearing and extracting modes are operable on a command signal.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: January 10, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Grady R. Harmon
  • Patent number: 4067338
    Abstract: An improved diaper fastener system has particular application to a conventional disposable diaper having a generally rectangular-shaped absorbent pad or filler disposed between a fluid-permeable top cover sheet and a thermoplastic film backing sheet. The fastener system is comprised of a pair of substantially conventional pressure-sensitive fastener tapes but having stress-accepting inserts traversing a certain distance between the release liner and a position on the fixed portion of the fastener tape. When the attachment portion of the tape is opened for use, the applied forces are at least partially accepted by the stress-accepting insert, transferring it through the release liner to the cover sheet which is stronger than the plastic film backing sheet.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: January 10, 1978
    Assignee: Weyerhaeuser Company
    Inventor: Raymond August Van Vliet
  • Patent number: 4065576
    Abstract: A method for discouraging ruminants from browsing edible material normally eaten by such ruminants comprises contacting the material and/or the region adjacent such material with a repellent composition. The repellent composition contains as the active repellent ingredient an aliphatic aldehyde, preferably having from six to 12 carbon atoms. The repellent composition can also be applied to the material as a repellent-producing composition that is an oxidation precursor of the aliphatic aldehyde.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: December 27, 1977
    Assignee: Weyerhaeuser Company
    Inventors: Katashi Oita, Marion R. San Clemente, John H. Oh, George T. Tiedeman
  • Patent number: 4065577
    Abstract: A method for discouraging ruminants from browsing edible material normally eaten by such ruminants comprises contacting the material and/or the region adjacent such material with a repellent composition. The repellent composition contains as the active repellent ingredient an aliphatic aldehyde, preferably having from six to twelve carbon atoms. The repellent composition can also be applied to the material as a repellent-producing composition that is an oxidation precursor of the aliphatic aldehyde.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: December 27, 1977
    Assignee: Weyerhaeuser Company
    Inventors: Katashi Oita, Marion R. San Clemente, John H. Oh, George T. Tiedeman
  • Patent number: 4061620
    Abstract: A liquid phenol-formaldehyde-resorcinol resin is made by reacting principally monomeric methylolphenols, free formaldehyde and resorcinol in an aqueous solution. The ratios of formaldehyde combined with phenol in the methylolphenols, the free formaldehyde and resorcinol are critical within given ranges. A base resin product is obtained which may be further modified in various ways to form adhesive resins. One modification involves further advancement of the base resin to increase molecular weight. When this adhesive resin is combined with an appropriate hardener, such as an aldehyde, the resulting adhesives exhibit a range of versatility previously unknown in any one product. These adhesives may be used for finger jointing wood members or for room temperature cure or preheat laminating of wood. By simply varying pH of one adhesive resin within narrow limits, a range of cure times from about a minute to well over an hour can be achieved.
    Type: Grant
    Filed: September 22, 1975
    Date of Patent: December 6, 1977
    Assignee: Weyerhaeuser Company
    Inventor: Maurice F. Gillern