Abstract: A papermaking process consisting essentially of:
forming an aqueous cellulosic papermaking slurry;
adding to the slurry certain additives, with said certain additives selected from the group including: coagulants; sizing agents; and mineral fillers;
draining the slurry to form a sheet; and
drying the sheet to form a paper sheet;
the improvement comprising adding to the slurry, prior to it being drained; an effective amount of a cationic dispersion polymer; which cationic dispersion polymer is a copolymer comprising about 30 mole % diallyldimethylammonium chloride (DADMAC) and about 70 mole % acrylamide (AcAm); and
adding to the slurry, either before or after said cationic dispersion polymer is added and the slurry is drained,
a microparticle selected from the group consisting of
a) copolymers of acrylic acid and acrylamide;
b) bentonite; and
c) dispersed silica;
with the proviso that said coagulant cannot be a cationic dispersion copolymer comprising about 30 mole % diallyldimethylammonium chloride
Type:
Grant
Filed:
May 21, 1999
Date of Patent:
May 29, 2001
Assignee:
Nalco Chemical Company
Inventors:
Jane B. Wong Shing, Chidambaram Maltesh, Ramasubramanyam Nagarajan
Abstract: A replaceable ink supply module which provides replenishment of an inkjet printhead includes a collapsible bag, an enclosure box, a connective tube, and an on/off valve. These four components are incorporated into a composite sealed system which remains intact during shipment, storage, installation and operation. The collapsible bag is placed inside of the protective enclosure box and has an end-connect outlet permanently attached to one end of the connective tube. The other end of the connective tube carries a permanently attached on/off valve designed for periodic engagement with an inlet valve of an inkjet printhead.
Type:
Grant
Filed:
March 31, 2000
Date of Patent:
May 29, 2001
Assignee:
Hewlett-Packard Company
Inventors:
Elizabeth Zapata, Mark E. Young, Robert Giles, Felix Ruiz, Rosa Calatayud, Ronald D. Stephens, Jr., Erich Coiner, Max S. Gunther
Abstract: Contactless power and communications links are established between a printer engine and a peripheral device installed on a replaceable printer component. For peripheral devices incorporated within or on the replaceable component, power is inductively transferred from a primary winding on the printer engine to an adjacent secondary winding on the replaceable component without the use of direct physical contact between electrical conductors. In addition, communications between the printer engine and at least one peripheral device on board the replaceable component are provided without making direct physical contact between electrical conductors. The communication task is accomplished in one of several ways. For a first embodiment of the invention, control signals are sent from the printer engine to the replaceable component over the inductive power coupling circuit by switching between two frequencies of alternating current applied to the primary winding on the printing engine.
Abstract: A motor start switch includes a temperature responsive resistor element and a bimetal cutout switch electrically connected in series with a start winding of an electric motor. The cutout switch is operable between an open position disconnecting the temperature responsive resistor from the start winding, and a closed position electrically connecting the temperature responsive resistor to the start winding. The cutout switch transitions from the open position to the closed position due to current flowing through, and heating, a bimetal element in the cutout switch.
Abstract: A composition, containing carbon black pigment particles of a specific size and an inorganic binder, suitable for use as a color coating on inorganic substrates to provide a greater resistance to fade than conventional coating compositions. The particles have a mean particle size in the range of about 150 nm to about 500 nm and a surface area per weight of particles of about 20 m2/g or less. The composition is useful in producing coated inorganic granules for specific uses, such as roofing granules.
Type:
Grant
Filed:
February 10, 1999
Date of Patent:
May 29, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Arthur H. Beesley, Christine A. Sobon, Bill L. George, Nancy A. Waletzko
Abstract: A control system is provided for a tracked vehicle drive/steering system having an engine driven hydraulic steering pump which drives a hydraulic steering motor. The steering pump is responsive to steering control signals representing a status of an operator manipulated steering wheel. The steering motor provides an input to a differential track drive mechanism which responds to manipulation of the steering wheel and drives left and right tracks to turn the vehicle. The control system includes a control unit which receives signals from an engine speed sensor, a steering motor rotation speed and direction sensor, and the steering control signals. The control unit, when the steering control signals indicate that the steering wheel is turned in a direction opposite to a direction of rotation of the steering motor, generating and saving a first ratio value representing a ratio of the motor speed to the pump speed.
Type:
Grant
Filed:
September 29, 1999
Date of Patent:
May 29, 2001
Assignee:
Deere & Company
Inventors:
Yifei Hou, Sanjay Ishvarlal Mistry, Mark Allen Bergene, Scott Allen Toppin
Abstract: Twin roll strip casting apparatus in which a pair of pool confining side plates (56) engage end surfaces of casting rolls (16) to form side confining closures for the pool. Plates (56) are mounted in side plate holders (82) connected to horizontally acting thrusters (83) which apply inward closure forces to the side plates (56). Thrusters (83) are mounted on a pair of carriages (101) disposed one at each end of the casting roll assembly and movable toward and away from one another to enable the spacing between them to be adjusted so that the carriages (101) can be preset before a casting operation to suit the width of the casting rolls (16). Carriages (101) are mounted on a central frame structure (103) which sits over the casting rolls (16).
Type:
Grant
Filed:
June 11, 1999
Date of Patent:
May 29, 2001
Assignees:
Ishikawajima-Harima Heavy Industries Company Limited, BHP Steel (JLA) Pty Ltd
Inventors:
Heiji Kato, John Andrew Fish, Wayne Russell
Abstract: A terpolymer having units of Formula I
wherein
X is a C2-10 alkyl, C6-12 aryl, or C4-12 alkoxy radical,
d is from about 3 to about 50,
R is a fluoroalkyl radical Rf—(A)v—(B)w—,
Rf is a fully fluorinated straight or branched aliphatic radical optionally interrupted by at least one oxygen atom,
A is a divalent radical selected from —SO2N(R″)—, —CON(R″)—, —S—, or —SO2—, where R″ is H, or a C1-6 alkyl radical,
B is a divalent linear hydrocarbon radical —CtH2t—, where t is 1 to 12,
Y is a divalent radical —CH2—O—,
u, v, and w are each independently zero or 1,
R′ is hydrogen or methyl,
e is from about 0.05 to about 10,
M is hydrogen, alkali metal, or ammonium, and
f is from about 5 to about 40, and its use to provide soil resistance and resistance to staining by acid dyes for fiber substrates is disclosed.
Type:
Grant
Filed:
June 21, 1999
Date of Patent:
May 29, 2001
Assignee:
E. I. du Pont de Nemours and Company
Inventors:
Engelbert Pechhold, Peter Michael Murphy
Abstract: The present invention relates to topical compositions comprising a vitamin B3 compound which are useful for regulating skin condition, especially for regulating the signs of skin aging.
Type:
Grant
Filed:
March 16, 1998
Date of Patent:
May 29, 2001
Assignee:
The Procter & Gamble Company
Inventors:
John Erich Oblong, Donald Lynn Bissett, Kimberly Ann Biedermann
Abstract: An ultrasonic inspection element and method of fabrication are provided for ultrasonic inspection of curved surface parts. Various points on a transducer are located. These points include the location where a ray starts, to the desired focal point in the material being inspected. The path of the ray is through a water medium and a water-metal boundary. These points are fitted onto a cylindrical surface. The ray is back propagated until it is focused at the desired focal point.
Type:
Grant
Filed:
August 16, 1999
Date of Patent:
May 29, 2001
Assignee:
General Electric Company
Inventors:
Ui W. Suh, Douglas E. Ingram, Richard E. Klaassen, Walter J. Bantz
Abstract: An inside out motor includes a rotor including a concave member, a shaft defining a longitudinal axis mounted on the concave member and a magnet mounted on an interior surface of the concave member. A bearing receives the shaft for rotatably mounting the rotor. A stator assembly is mounted on said bearing and includes a bobbin mounted generally coaxially with the rotor shaft and having an interior diameter, an exterior diameter, a first axial end and a second axial end. A winding is wound on the bobbin and extends around the axis of the rotor shaft. The winding has a width in a direction parallel to the lengthwise extension of the rotor shaft. Plural separate ferromagnetic members are on each of the first and second axial ends of the bobbin. Each ferromagnetic member has a radially outer leg extending generally between the winding and the magnet.
Type:
Grant
Filed:
September 23, 1999
Date of Patent:
May 29, 2001
Assignee:
General Electric Company
Inventors:
Robert K. Hollenbeck, David M. Erdman, Dennis P. Bobay, James E. Grimm, Harold B. Harms, David T. Molnar
Abstract: A shift lever assembly includes a housing, a first shift member pivotally supported by the housing and for linking to a first transmission actuator, a second shift member pivotally supported by the housing for linking to a second transmission actuator, and a lever movable to selectively engage and operate the first and second shift members. An elongated interlock member is coupled to the lever and slidably received by the first and second shift members. The member has ends which remain slidably received by housing sleeves so that the member cannot move transversely to its sliding axis. Part of the member engages the second shift member to prevent pivoting of the second shift member when the lever moves into engagement with the first shift member.
Abstract: An apparatus and a method for connecting a fuel pressure tube to a side feed injector device of an internal combustion engine providing a conduit for leak-back transfer from the injector to a take-off point for return to the fuel feed system having a holder for fitting onto an injector body and serving to receive a fuel pressure tube, a housing member configured to cooperate with the holder to define a leak-back receptacle, and ducts to enable communication of a leak-back flow of fuel from the injector and to enable controlled delivery of the leak-back fuel for re-use.
Abstract: A seat back assembly for a vehicle including a seat back, a pivot device having a pivot axis, and an armrest. The seat back is connected to the pivot device for rotational movement relative to the seat cushion between an upright position and a folded position. The armrest is connected to the pivot device for rotational movement relative to the seat back between a deployed position and retracted position. Both the seat back and the armrest pivot about a common pivot axis. The seat back assembly (1) impedes the rotational movement of the armrest beyond the retracted position; (2) holds the armrest in the retracted position when the seat back is in the fold position; and (3) urges the arm rest from the deployed position to the retracted position during rotational movement of the seat back from the upright position to the folded position.
Type:
Grant
Filed:
October 8, 1999
Date of Patent:
May 29, 2001
Assignee:
Johnson Controls Technology Company
Inventors:
William S. Brewer, Mark A. Pattok, Gregory Steinke, Glenn Scott
Abstract: A lenticular device comprising:
a sheet of lenticular material; and
a printing on a viewing surface of the lenticular material with said printing representing a number of consecutive still images and a number of motion images.
Abstract: The present invention provides a scheme for twice writing data into an array of memory cells with a single array write port during each clock cycle. In this invention, data is written into the memory array in the first write operation with row enable and write data signals that are generated during the first phase of a clock signal. Data is then written in the second write operation with row enable and write data signals generated during the second phase of the clock signal. In this way, each clock phase is separately used for writing data into the memory array. Accordingly, twice as much data may be written during every cycle.
Abstract: Disclosed are a resin composition for inhibiting polymerization of a vinyl compound, which includes a resin and 0.1 to 30% by weight based on the resin, of a polymerization inhibitor for the vinyl compound; a resin molding for inhibiting polymerization of a vinyl compound, and a packing for inhibiting polymerization of a vinyl compound in a distillation tower, the resin molding and packing each including this resin composition. Also disclosed are methods for inhibiting polymerization of a vinyl compound, which include contacting the vinyl compound with the resin composition; these methods include processes of inhibiting polymerization of a vinyl compound in a distillation tower, by contacting the vinyl compound in the distillation tower with packing therein which includes this resin composition.
Abstract: A seal includes a seal ring with a circumferential split defining a gap. An arcuate bridge extends across the gap and nests in the seal ring. The bridge includes an anchor end which engages the seal ring solely in friction to restrain differential circumferential movement therebetween. The bridge also includes a slip end engaging the seal ring on an opposite side of the gap with less friction than the anchor end to permit differential circumferential movement therebetween.
Abstract: An image forming apparatus supervising system includes a problem detecting device in each of image forming apparatuses, which detects a problem to be reported to a central control apparatus as a service person call when the problem occurs in the image forming apparatus. A first copysheet number storing device is employed to store a total number of copysheets having been copied before a current occurrence of the problem occurs in an image forming apparatus. A second copysheet number storing device is also employed to store a number of copysheets having been copied before a last occurrence of the problem. The problem is reported only when a difference between the numbers of copysheets stored in the first copysheet number storing device and the second copysheet number storing device exceeds a predetermined level so that an erroneously detected problem can be avoided from being reported as the service person call.