Patents Assigned to E
  • Polytetrafluoroethylene resin
    Patent number: 6177533
    Abstract: Stretchable polytetrafluoroethylene resin has high break strength and/or low creep rate.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Jones Clay Woodward
  • Printable electrode structures for displays
    Patent number: 6177921
    Abstract: Novel addressing schemes for controlling electronically addressable displays include a scheme for rear-addressing displays, which allows for in-plane switching of the display material. Other schemes include a rear-addressing scheme which uses a retroreflecting surface to enable greater viewing angle and contrast. Another scheme includes an electrode structure that facilitates manufacture and control of a color display. Another electrode structure facilitates addressing a display using an electrostatic stylus. Methods of using the disclosed electrode structures are also disclosed. Another scheme includes devices combining display materials with silicon transistor addressing structures.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: January 23, 2001
    Assignee: E Ink Corporation
    Inventors: Barrett Comiskey, Paul Drzaic
  • Paint roller and method of making same using continuous yarn tuftstrings
    Patent number: 6175985
    Abstract: A paint roller includes a core tube having first and second opposite axial ends. At least one tuftstring is spirally wrapped around the core tube and adhesively or otherwise bound to the core tube.
    Type: Grant
    Filed: November 4, 1998
    Date of Patent: January 23, 2001
    Assignee: E. I. Du Pont de Nemours & Company
    Inventors: Jeffrey Allen Chambers, Gregory Weeks
  • Container, system, and method for dispensing fluid
    Patent number: 6176389
    Abstract: A container includes a body having at least one wall defining an open area for containing fluid and a member. The body includes a guiding portion for guiding removal of an applicator from the container along a predetermined path and an opening permitting access to the open area of the body. The member includes a wiping portion having an open end. The wiping portion is shaped so that as the applicator is removed from the container along the predetermined path the wiping portion wipes at least two opposed points on a transverse section of the applicator. Also disclosed are systems and methods for dispensing fluid from the container.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: January 23, 2001
    Assignee: L'Or{acute over (e)}al S.A.
    Inventor: Vincent de Laforcade
  • Self-modulating diffuser for air conditioning systems
    Patent number: 6176777
    Abstract: A self-modulating diffuser for regulating the volume flow of conditioned air from a duct to a selected space, affording a high level of air mixing and sound performance combined with ready control of the space temperature comprises an adjustable square cone plaque-type ceiling diffuser with an outer cone for developing horizontal air flow, a square plaque for attachment to the outer cone and an inner dampening cone positioned intermediate the outer cone and square plaque. Separate first and second sensor means measure the temperature in the duct and in the room space, respectively, and direct digital control means respond to signals from the sensors to produce a control signal which operates an actuator mechanism for adjusting the position of the inner dampening cone.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: January 23, 2001
    Assignee: E. H. Price Limited
    Inventors: Grant L. Smith, Eric G. Laflamme, Alfred T. Dyck, Bruce N. Kettner, Kenneth G. Lenton, Charles D. Fraley, Jason V. Boblinski
  • Process and preparation of monochrome and polychromatic color proofs from high resolution color separations using image carriers having a specified roughness
    Patent number: 6177234
    Abstract: A monochromatic or polychromatic proof of a high resolution master and a process and means for its preparation are described. The graphic arts industry requires monochromatic or polychromatic proofs having high resolution and tonally correct reproduction of halftone masters having frequency modulated screen or line screens with more than 80 lines/cm. These proofs are obtained by using image carriers having image-side surfaces with an average roughness of 1.1 &mgr;m maximum. Such color proofs are necessary to check color separations in the graphic arts industry for whether subsequent printing results are a tonally correct reproduction of the master.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Bernhard Metzger
  • Fluoroaluminate A1F4 compounds
    Patent number: 6177563
    Abstract: Fluoroaluminate compounds of formula M+n(AlF4)n− wherein n is 1 to 3 and M+n is N(R2)4, P(R2)4, As(R2)4, HN(R2)3, H2N(R2)2, H3N(R2), (R2)3P═N═P(R2)3, S[N(R2)2]3, (R2)NCN(R)2, (R)2N—(C(R)2)k—N(R)3, and ZHm+m wherein Z is a base capable of accepting m protons, and various cyclic and aryl groups are disclosed as well as processes for their preparation.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard Leslie Harlow, Norman Herron, David Lincoln Thorn
  • Use of at least one sulphonic acid for stimulating renewal and/or epidermal repair and for combatting cutaneous aging and conditions
    Patent number: 6177089
    Abstract: The use of specific sulphonic acids or hydrates thereof in or for the preparation of a cosmetic or dermatological composition for achieving various effects on the skin, such as promoting desquamation of the skin, stimulating epidermal renewal, combatting intrinsic and extrinsic cutaneous aging. A process for the non-therapeutic treatment of the skin intended to achieve such effects, such as to promote the desquamation of the skin.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: January 23, 2001
    Assignee: L'Or{acute over (e)}al
    Inventor: Jean Maignan
  • Aqueous ink jet inks for postal metering
    Patent number: 6176908
    Abstract: Aqueous, fluorescent red ink jet inks which meet US Postal Service requirements for metered mail are disclosed and comprise an aqueous vehicle, a red or magenta pigment, a polymeric dispersant, a fluorescent dye and, optionally a hydrotrope additive.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Richard D. Bauer, John Morrow Gardner, Loretta Ann Grezzo Page, David Alvin Tyvoll
  • Methods and compositions for cryopreservation of cells and tissues
    Patent number: 6176089
    Abstract: The present invention provides methods and compositions for cryopreservation of cells or tissues encapsulated in a bioartificial organs, wherein the integrity and the viability of the encased cells are maintained, along with the integrity of the artificial capsule used to encase the cells. The method provides novel conditions for cryopreserving a bioartificial organ in a freezing container using a minimum volume of added cryopreservative solution necessary to maintain both the structural integrity of the jacket encasing the bioartificial organ, and the viability of the cells encased therein.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: January 23, 2001
    Assignee: Modex Th{acute over (e)}rapeutics
    Inventor: Nicola Bouche
  • Positioning device
    Patent number: 6176018
    Abstract: A measuring machine produces an essentially linear movement in a moving part by transforming rotary movement to linear movement through a transmission element having a high modulus of elasticity in a longitudinal direction, and which is flexible in a transverse direction. The transmission element has two ends which are each fastened to the same mechanical element, and the transmission element is given a pre-stress which is greater than a maximum force encountered during acceleration while the machine is in use.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: January 23, 2001
    Assignee: C. E. Johansson AB
    Inventor: Rudolf Wiklund
  • Power-driven screwdriver with removable depth stop
    Patent number: 6176162
    Abstract: A screwdriver is disclosed, comprising a removable depth stop which selectably either, when equipped with the depth stop, allows noiseless shutoff or, with the depth stop removed, allows torque-dependent shutoff, without any chattering occurring when the machine continues to run. To this end, an adjustable torque-dependent release clutch is combined with an entrainment clutch of known type, which is additionally preceded by a disconnect clutch, a locking means being provided in order to hold a throwout ring, which forms one of the two elements of the disconnect clutch, in a predetermined position under load. In this way, noiseless operation is ensured after release, both when working with the depth stop and in the case of torque-dependent shutoff, with the depth stop removed.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: January 23, 2001
    Assignee: C. & E. Fein GmbH & Co.
    Inventors: Manfred Ludwig, Wolfgang Schreiber
  • Compressed batt having reduced false loft and reduced false support
    Patent number: 6177369
    Abstract: A batt, which may be used for a mattress, a seat cushion or a ground pad for a sleeping bag, is compressed so that it has reduced false loft and reduced false support, and is therefore more durable for consumer use. The batt is compressed so that, when subjected to use for an average life cycle (usually six years), it has a thickness reduction of less than 15% and a reduction of load-at-half-height of less than 40%.
    Type: Grant
    Filed: March 31, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Wo Kong Kwok
  • Process for manufacture of imidazoles
    Patent number: 6177575
    Abstract: Imidazoles may be manufactured by reacting a glyoxal, ammonia, an aldehyde, and optionally a primary amine, in the presence of a Bronsted acid whose pKa is approximately equal to the pKa of the ammonium cation of the primary amine, or if the primary amine is not present, to the pKa of the ammonium (NH4+) cation. The reaction may be used to make in relatively high yields a wide variety of imidazoles using relatively inexpensive starting materials. The imidazoles are useful as chemical intermediates.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Anthony J. Arduengo, III, Frederick P. Gentry, Jr., Prakash K. Taverkere, Howard E. Simmons, III
  • Phosphorus-containing fluoromonomers and polymers thereof
    Patent number: 6177196
    Abstract: Fluorinated vinyl ethers having phosphorus-containing groups are useful as monomers in making fluoropolymers having functional sites.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: January 23, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Paul Douglas Brothers, Ming-Hong Hung, Michael Joseph Michalczyk, Tatsuhiro Takahashi
  • Storage rack
    Patent number: 6173847
    Abstract: A storage rack having a plurality of shelves between end frames. Each of the plurality of shelves has U-shaped retainers that are snap fit, press fit, or friction fit onto a vertical member of the tubular end frame. A lateral support member attached to the end frames determines the different shelf heights with a side member resting on the frame cross members. In one embodiment, an angled end placed on the side members contacts the frame cross members, securely holding the bottom portion of a shelf. The top of the shelf being held by the U-shaped side end retainers and the bottom of the shelf being held by the angled ends results in a secure, rigid, easily assembled storage rack structure. In another embodiment, the storage rack has a triangular shape. The storage rack of the present invention can be easily assembled without any tools and is easily manufactured and shipped unassembled.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: January 16, 2001
    Assignee: E-Z-Do, Inc.
    Inventors: James Zellner, III, Martin Snider
  • Attenuating phase shift photomasks
    Patent number: 6174631
    Abstract: Transmissive attenuated embedded phase shifter photomasks comprising at least one polymeric material, preferably an amorphous fluoropolymer or an amorphous fluoropolymer doped with a fluorine functionalized organosilane, and organosilicates, or combinations thereof, the polymeric material having: (a) an index of refraction (n) in a range from 1.2 to 2.0, preferably in the range from 1.26 to 1.8, at a selected lithographic wavelength below 400 nm; and (b) an extinction coefficient (k) in a range from 0.04 to 0.8, preferably in the range from 0.06 to 0.59 at the selected lithographic wavelength below 400 nm.
    Type: Grant
    Filed: January 18, 2000
    Date of Patent: January 16, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Roger Harquail French, Kenneth George Sharp
  • Electromagnet
    Patent number: 6175291
    Abstract: A magnet coil which receives an armature movable longitudinally with respect to the coil axis and having an armature rod. A support of the armature or of the armature rod in a core serves also for the guidance of the magnetic field, a direct support of the armature or of the armature rod on a surface of the core.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: January 16, 2001
    Assignee: Dipl- Ing. Wolfgang E. Schultz
    Inventors: Dieter Kleinert, Georg Scherer, Helmut Mang, Reinhard H{umlaut over (a)}ring, Manfred Hanka
  • Process of preparation of linear aldehydes
    Patent number: 6175043
    Abstract: The present invention provides an improved hydroformylation process in which the catalyst system is composed of a Group VIII metal and organic phosphite ligand having the structure P(OR)2-OR′O—P(OR)2 or P(OR)3, where R and R′ are organic residues which may be the same or different and where the R or R′ contain at least one C9 to C40 aliphatic group positioned as a tail extending away from the primary ligand structure rendering the ligand lipophilic.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 16, 2001
    Assignees: E. I. du Pont de Nemours and Company, DSM N.V.
    Inventor: Emilio Enrique Bunel
  • Low molecular weight (meth) acrylate copolymer emulsions
    Patent number: 6174953
    Abstract: Graft and block copolymers with a weight average molecular weight below 20,000, a hydroxy value more than 200 and acid value below 50 which copolymers comprise (a) 20-98% by weight of a water soluble macromonomer having a hydroxy value of at least 300, a weight average molecular weight below 6000, containing less than 10% by weight of an acid functional monomer and having a terminal unsaturated double bond; and (b) 2 to 80% of polymerized monomers selected from vinyl monomers, acrylate monomers, methacrylate monomers and mixtures thereof, form stable coating compositions that are compatible with polyisocyanate crosslinking agents and provide improved properties and appearance in automotive finishes.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: January 16, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Josef Huybrechts