Patents Represented by Attorney Hammer & Hanf, P.C.
  • Patent number: 7178658
    Abstract: The store arranged between production and packaging having an endless, circulating pair of chains on which the product-carrying gondolas are suspended for swinging action. The pair of chains, which are guided on a vertical section and on a horizontal section, are guided over an upper deflecting arrangement and a lower deflecting arrangement. Each deflecting arrangement is mounted so it can be displaced in a linear guide. A tensioning cable has its ends fastened on the two deflecting arrangements and keeps the pair of chains tensioned in each operating position. As they pass through the upper deflecting region, the filled gondolas are deflected radially by crank-like suspension mechanisms arranged on both sides, so adjacent gondolas can be operated with spacing between them, which in the vertical regions of the gondola path, corresponds to the spacing between two adjacent shelves.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: February 20, 2007
    Assignee: Rotzinger AG
    Inventor: Kurt Philipp
  • Patent number: 7152288
    Abstract: The instant invention is a stuffer box crimper and a method for crimping. The stuffer box crimper according to instant invention includes a pair of nip rollers, a pair of doctor blades, and a stuffer box. The pair of doctor blades is adjacent to an exit end of the pair of nip rollers. The stuffer box includes a stuffer box channel adjacent to the pair of doctor blades, and the stuffer box channel includes a surface consisting of a hard material having a hardness of at least 60 Rc. The method of crimping according to instant invention includes the steps of (1) providing a stuffer box crimper including a stuffer box having a stuffer box channel including a surface consisting of a hard material having a hardness of at least 60 Rc; and (2) crimping via the stuffer box crimper.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: December 26, 2006
    Assignee: Celanese Acetate LLC
    Inventors: William S. Sanderson, Donald T. Stilwell
  • Patent number: 7107659
    Abstract: A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The line speed of the particulate laden, shaped tow is greater than 190 m/min.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 19, 2006
    Assignee: Celanese Acetate, LLC
    Inventors: Todd Ames, Ricky Lee Kenley, William T. Wygand, Bobby R. Lomax
  • Patent number: 7103946
    Abstract: A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The step of or means for de-registering the crimped tow uses at least two pairs of rollers, each pair of rollers having a metal-faced roller and a rubber-face roller. The metal-faced rollers are oppositely disposed between the pair of rollers. Alternatively, the metal-faced rollers are disposed between the pair of rollers on the same side.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: September 12, 2006
    Assignee: Celanese Acetate LLC
    Inventors: Todd Ames, Ricky Lee Kenley, Bobby R. Lomax
  • Patent number: 7094498
    Abstract: A separator for a storage battery is a microporous membrane having a back web and a battlemented rib standing on the back web.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: August 22, 2006
    Assignee: Daramic, Inc.
    Inventors: Eric H. Miller, J. Kevin Whear
  • Patent number: 7087343
    Abstract: The battery separator for a lithium battery is made from a nonwoven flat sheet material having high temperature melt integrity, a microporous membrane having low temperature shutdown properties, and an adhesive bonding the nonwoven flat sheet to the microporous membrane and being adapted for swelling when contacted by an electrolyte.
    Type: Grant
    Filed: July 15, 2003
    Date of Patent: August 8, 2006
    Assignee: Celgard, Inc.
    Inventors: Lie Shi, Ken J. Harleson, Ta-Hua Yu
  • Patent number: 7081423
    Abstract: The invention is directed to a nonwoven material made of a bicomponent fiber in which the first polymer is a cellulose ester polymer, preferably cellulose acetate, and the second polymer is selected from the group consisting of polyolefins, polyesters, polyamides and polyimides. The bicomponent fiber can be either a side-by-side or a core-and-sheath fibers. When core-and-sheath, the cellulose acetate is the sheath polymer. The nonwoven material of the invention can be used to prepare grips, materials for use in absorbent products such as diapers and personal hygiene products, disposable towels and other products. The nonwoven of the invention has particular utility for disposable diaper products due to the superior fluid acquisition, retention and distribution properties of the cellulose ester, yet avoids the high cost of all cellulose acetate fibers by use of a much less expensive second polymer to form part the bicomponent fiber.
    Type: Grant
    Filed: June 26, 2002
    Date of Patent: July 25, 2006
    Assignee: Celanese Acetate LLC
    Inventors: Jean-Claude Abed, Denis G. Fallon
  • Patent number: 7076848
    Abstract: A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The method and apparatus also include the step of or means for shielding the tow, while de-registering, from contaminants.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: July 18, 2006
    Assignee: Celanese Acetate LLC
    Inventors: Todd Ames, Ricky Lee Kenley, Bobby R. Lomax
  • Patent number: 7060782
    Abstract: A process for the production of high molecular weight polybenzimidazole by one: providing a first reaction vessel; charging the reaction vessel with at least one aromatic hydrocarbon tetraamine, and a heterocylic ring making up the dicarboxylic component; heating the reactants under agitation in a substantially oxygen-free atmosphere with agitation until the agitator torque is about 1.5 times the torque before a rise in viscosity begins; terminating the agitation while continuing to heat the reaction mixture to about 230° C. while allowing the reaction mass to foam; cooling the reaction mass to a friable foamed mass; crushing the friable foamed mass to obtain a ground prepolymer; and two: providing a second reaction vessel, the second reaction vessel being a high intensity reaction vessel; transferring the ground prepolymer to the second reaction vessel; heating the ground prepolymer under agitation to over 315° C. at atmospheric pressure for a time of about 90 minutes.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: June 13, 2006
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, J. Dean Baker, Rita H. Joiner
  • Patent number: 7059027
    Abstract: A method and apparatus for making an absorbent composite from continuous tow is disclosed. The method and apparatus includes the steps of or means for spreading a crimped tow; de-registering the crimped tow; shaping the de-registered tow to a substantially rectangular cross-section; and distributing a particulate onto the shaped tow. The step of or means for distributing the particulate is controlled through a shaped orifice.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: June 13, 2006
    Assignee: Celanese Acetate, LLC
    Inventors: Todd Ames, Ricky Lee Kenley, William West, William T. Wygand, Bobby R. Lomax
  • Patent number: 7049453
    Abstract: The present invention relates to a process for preparing specific transition metal compounds, novel transition metal compounds and also catalyst systems and their use for the homo- or copolymerization of olefins.
    Type: Grant
    Filed: March 24, 2003
    Date of Patent: May 23, 2006
    Assignee: Celanese Ventures GmbH
    Inventors: Jörg Schottek, Tim Dickner, Jörg Ludwig Schulte
  • Patent number: 7038007
    Abstract: A process for a single-stage melt polymerization for the production of a high molecular weight polybenzimidazole which comprises the steps of: providing a reaction vessel having a means for agitation and a means for vacuum; charging the reaction vessel with reactants selected from: (A) a tetraaminiobiphenyl (TAB), and (B) a diphenyl isophthalate (DPIP); reacting the reactants under constant agitation and under a vacuum with an inert gas sweep; maintaining a reactant temperature which does not exceed 290° C. under constant agitation allowing pressure in the vessel to increase, with an inert gas sweep until a phase change is achieved, when the temperature reaches 250° C. pressure is increased to a slight positive pressure; and increase the reactant temperature and pressure within said reaction vessel while maintaining constant agitation and inert gas sweep, while maintaining a slight positive pressure. Preferably the vessel used in the instant invention is a high intensity reaction vessel.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: May 2, 2006
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, J. Dean Baker, Rita H. Joiner