Patents Assigned to James River Corporation of Virginia
  • Patent number: 5489364
    Abstract: A creping system includes a Yankee dryer rotatable about its axis, a blade support mechanism which includes (a) a pair of guide rails, (b) a fixed attitude linear bearing engaging and translatable along each of the guide rails, each fixed attitude linear bearing being mounted on a block and (c) a combination linear-rotary bearing being carried by each block, the axis of each combination linear-rotary bearing being parallel to the generators of the surface of the Yankee dryer and collinear with the axis of the other combination linear-rotary bearing. A stub shaft engages each combination linear-rotary bearing, each stub shaft being translatable along, and rotatable about, the axis of its respective combination linear-rotary bearing. A blade holder is mounted between the stub shafts, and a blade mounted on the blade holder for engagement with the surface of the Yankee dryer.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: February 6, 1996
    Assignee: James River Corporation of Virginia
    Inventor: Robert J. Marinack
  • Patent number: 5481171
    Abstract: A motor starter minimizes transient asymmetrical current to an A.C. induction motor during start-up. Desired timing of closing each phase is calculated using the reactance/resistance ratio (X/R) of the motor and calculated capacitive (X.sub.C) and inductive (X.sub.L) reactances and resistances (R) of the motor circuit cable. A target closing angle of the first phase that crosses zero potential of the voltage cycle is determined based on the system X/R ratio, and that phase of the starter is closed individually. After the first phase is closed, the power frequency is used to determine closing of the other phases at 60 degrees intervals corresponding to the X/R-based target timing.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: January 2, 1996
    Assignee: James River Corporation of Virginia
    Inventor: Thomas J. Woginrich, Jr.
  • Patent number: 5480693
    Abstract: A composite integral sheet of wrap material which includes a first layer of absorbent material containing fibers bearing foraminous hydrophobic water-vapor-permeable pellicles, a second layer of printable material and an impermeable pigmented polymer layer interposed between the first and second layers. Additionally, the absorbent layer will include highly absorbent material formed by in-situ crosslinking of a partially pre-neutralized polyacrylic acid. The composite wrap material has a plurality of air pockets formed between at least one of the first or second layers and the polymer layer, by discontinuously bonding the first or second layers to the polymer material. A method of making the composite integral sheet.
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: January 2, 1996
    Assignee: The James River Corporation of Virginia
    Inventors: Robert Patterson, Daniel J. Geddes, David H. Hollenberg, Patrick L. Maynard
  • Patent number: 5472402
    Abstract: Containers and a method for forming such containers having larger brims with reduced brim curl defects is disclosed including providing a plurality of container blanks for forming containers, forming a plurality of container shells from the plurality of blanks, accumulating the plurality of container shells at an accumulation station, subjecting at least an upper periphery of the shells to a humid atmosphere to precondition the shells with the atmosphere preferably including steam, successively removing the shells from the accumulator and subsequently forming a brim curl about an upper periphery of the shell with the shells being subject to the humid atmosphere for a predetermined time period sufficient to form defect-free brim curls by extending the forming strain limits of the paperboard material. This method being carried out by using an accumulator for accumulating the container shells for further processing.
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: December 5, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Robert J. Aloisi, Arthur Livingston, Brian S. Huss
  • Patent number: 5463843
    Abstract: A system of wrapping and securing together the components of a bulk package including a bottom tray element and a top cap element with an integral web of plastic material. The plastic material, while in a rope-like configuration, is looped about only a single pair of diagonally opposed corners of each of the top cap element and bottom tray element. The tail or terminal end of the web is secured in place by being positioned between a wrap convolution and the bulk package.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: November 7, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Dennis Sharp
  • Patent number: 5460286
    Abstract: A beverage cup lid is disclosed that comprises a circular closure panel, circumscribed by a side wall that terminates in a resilient, restricted diameter edge for capturing a brim of a beverage cup, and a frustro-conical skirt connected around the restricted diameter edge for increasing the hoop strength of the edge, and an extended diameter flange circumscribing the free edge of the skirt for further increasing the hoop strength of the restricted diameter edge such that the edge retains the brim with a force of at least 1 pound. The invention is particularly applicable to beverage cup lids formed by a plastic web machine that applies heat to only those areas that are deformed into structural components on the lid (such as the side wall, restricted diameter edge, and skirt), and which consequently results in some amount of wall thinning in the skirt, and hence some reduction in the hoop strength that the skirt gives to the restricted diameter edge that retains the cup brim.
    Type: Grant
    Filed: August 4, 1993
    Date of Patent: October 24, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Jonathan E. Rush, Thomas R. Toczek
  • Patent number: 5429867
    Abstract: A coated polyolefin film and method for its production is disclosed. The coating comprises a synthetic fluid hectorite, a peptizer such as sodium tetrapyrophosphate and a hydrophilic air curable epoxy resin. Food pouches made from said film are also disclosed.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: July 4, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Donald C. McCarthy, Debra D. Bowers, Donald C. Taber
  • Patent number: 5415918
    Abstract: A multi-ply napkin having a functional emboss design containing an embossed edge, an embossed folded edge, and an unembossed wiping surface.
    Type: Grant
    Filed: December 22, 1993
    Date of Patent: May 16, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Frederick J. Lang, David J. Martin
  • Patent number: 5409572
    Abstract: A single or multi-ply tissue product includes at least one foam-formed ply incorporating at least about 100 ppm of forming-loop-incorporated surfactant, the ply includes from at least about 50% by weight to about 80% by weight of relatively short, high softness cellulosic fiber formed by chemical pulping of hardwood. The fibers have a weight average fiber length of between about 0.5 to about 2.2 mm, a coarseness of about 7 to about 14 mg of fiber per 100 m of fiber length (mg/100 m). The ply includes from at least about 20% by weight to about 50% by weight of relatively long strength-enhancing cellulosic fiber chosen from chemically pulped softwood fiber and chemi-thermo-mechanically pulped softwood fiber and mixtures thereof. The strength-enhancing cellulosic fiber have a weight average fiber length of about 2 to about 4 mm, a coarseness of about 14 to about 28 mg/100 m. Optionally, up to about 30% by weight of bulk-enhancing fibers having a three-dimensional anfractuous character may be provided.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: April 25, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Thomas N. Kershaw, Anthony O. Awofeso, Frank D. Harper, Dinesh M. Bhat, John H. Dwiggins, Frederick W. Ahrens, Bruce W. Janda
  • Patent number: 5399366
    Abstract: A perforated package of a composite integral sheet material which includes a first layer of absorbent material, a second layer of printable material and an impermeable pigmented polymer layer interposed between the first and second layers. The composite material has a plurality of air pockets formed between at least one of the first or second layers and the polymer layer, by discontinuously bonding the first or second layers to the polymer material. The package has two parallel lines of perforation which allow access to the interior of the package and to the foodstuff contained therein. A method of using the perforated package of composite integral material.
    Type: Grant
    Filed: July 6, 1992
    Date of Patent: March 21, 1995
    Assignee: The James River Corporation of Virginia
    Inventors: Daniel J. Geddes, Kathy Rigotti, Linda L. Bunker, Arthur C. Berger, Patrick L. Maynard, Robert Patterson, David H. Hollenberg
  • Patent number: 5399241
    Abstract: Disclosed is a method for producing an absorbent creped cellulosic sheet having a high level of surface-perceived softness that comprises continuously forming a web of cellulosic papermaking fibers, adhering said web to a thermal drying means, treating said adhered web with an amido amine salt derived from a partially acid-neutralized amine, and creping said treated web from said thermal drying means.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: March 21, 1995
    Assignee: James River Corporation of Virginia
    Inventors: T. Philips Oriaran, Anthony O. Awofeso, Thomas N. Kershaw, Phuong V. Luu, Cristian M. Neculescu, Michael E. Huss
  • Patent number: 5397023
    Abstract: A straw-insertable disposable lid is disclosed including a flexible disk-like body having a top surface for covering an opening of a cup, a plurality of intersecting lines of weakness each extending between two ends with the lines of weakness being located on the body and adapted to permit the insertion of a drinking straw through the top surface of the lid and a plurality of intersecting troughs for accommodating a respective one of the intersecting lines of weakness, with the troughs acting to stop the propagation of the tearing of the lines of weakness in a radially outward direction when a straw is inserted into the lid and for closing the plurality of intersecting lines of weakness in response to a fluid pressure force acting on an underside of the top surface of the lid should a filled cup incorporating such lid be inadvertently tilted over.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: March 14, 1995
    Assignee: James River Corporation of Virginia
    Inventors: Thomas R. Toczek, Jonathan E. Rush, Michael T. Grolemund
  • Patent number: 5383778
    Abstract: A apparatus for embossing paper products, such as paper towels or toilet tissue, in which the tensile strength extending in the machine direction is modified such that after embossing, the tensile strength in the machine direction is more nearly equal to the tensile strength in the cross-machine direction. During embossing, selected portions of the embossed pattern are embossed more deeply to fracture fibers extending in the machine direction, thereby modifying the tensile strength in the machine direction. An improved paper product is thereby formed having a machine direction:cross-machine direction tensile strength ratio which is more closer to 1:1.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: January 24, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Galyn A. Schulz
  • Patent number: 5384012
    Abstract: An improved process for preparing crosslinked individualized cellulosic fibers wherein drying and curing are carried out in two separate stages while the fibers are entrained in turbulent pressurized superheated steam at elevated temperatures.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: January 24, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Sherrill J. Hazard, Jr.
  • Patent number: 5384011
    Abstract: An improved process for preparing crosslinked individualized cellulosic fibers wherein drying and curing are carried out in two separate stages while the fibers are entrained in turbulent pressurized superheated steam at elevated temperatures.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: January 24, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Sherrill J. Hazard, Jr.
  • Patent number: 5377428
    Abstract: A drying control system and method for obtaining a substantially uniformly dried low moisture content web efficiently with reduced energy usage in a papermaking process is provided. The drying rate of the web in this process is precisely controlled by detecting and monitoring the web or felt low and high cross-direction temperature profiles and then actuating drying rate modulators as required to increase or decrease the drying rate to produce a substantially flat temperature profile in response to temperature profile information provided to an automatically or manually controlled central control system by web high temperature and low temperature sensors.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: January 3, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Ralph C. Clark
  • Patent number: D354853
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: January 31, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Galyn A. Schulz
  • Patent number: D354854
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: January 31, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Galyn A. Schulz
  • Patent number: D354855
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: January 31, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Galyn A. Schulz
  • Patent number: D354856
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: January 31, 1995
    Assignee: James River Corporation of Virginia
    Inventor: Galyn A. Schulz