Patents by Inventor David Cowan

David Cowan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20060217464
    Abstract: A lightweight cementitious composition containing from 10 to 90 volume percent of a cement composition, from 10 to 90 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, and from 10 to 50 volume percent of sand and/or other fine aggregate, where at least a portion of the sand and/or fine aggregate has a fineness modulus of less than 2; where the sum of components used does not exceed 100 volume percent, and where after the lightweight cementitious composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39 after seven days. The cementitious composition can be used to make concrete masonry units, construction panels, road beds and other articles.
    Type: Application
    Filed: March 22, 2006
    Publication date: September 28, 2006
    Applicants: NOVA Chemicals, Inc., Metromont Corporation
    Inventors: Tricia Guevara, Michael Williams, David Cowan, John Madish, Kolapo Adewale, Roger Moore, Mary Moore, Blain Hileman, Richard Pennell
  • Publication number: 20060201090
    Abstract: A lightweight cementitious composition containing from 22 to 90 volume percent of a cement composition and from 10 to 78 volume percent of particles having an average particle diameter of from 0.2 mm to 8 mm, a bulk density of from 0.03 g/cc to 0.64 g/cc, an aspect ratio of from 1 to 3, where after the lightweight cementitious composition is set it has a compressive strength of at least 1700 psi as tested according to ASTM C39. The cementitious composition can be used to make concrete masonry units, construction panels, road beds and other articles and can be included as a layer on wall panels and floor panels and can be used in insulated concrete forms. Aspects of the lightweight cementitious composition can be used to make lightweight structural units.
    Type: Application
    Filed: February 24, 2006
    Publication date: September 14, 2006
    Inventors: Tricia Guevara, Michael Williams, David Cowan, John Madish, Kolapo Adewale, Roger Moore, Jay Bowman
  • Publication number: 20060195595
    Abstract: A client stores a first set of workspace data, and is coupled via a computer network to a global server. The client may be configured to synchronize portions of the first set of workspace data with the global server, which stores independently modifiable copies of the portions. The global server may also store workspace data which is not downloaded from the client, and thus stores a second set of workspace data. The global server may be configured to identify and authenticate a user seeking global server access from a remote terminal, and is configured to provide access to the first set or to the second set. Further, services may be stored anywhere in the computer network. The global server may be configured to provide the user with access to the services. The system may further include a synchronization-start module at the client site (which may be protected by a firewall) that initiates interconnection and synchronization with the global server when predetermined criteria have been satisfied.
    Type: Application
    Filed: January 25, 2006
    Publication date: August 31, 2006
    Inventors: Daniel Mendez, Mark Riggins, Prasad Wagle, Hong Bui, Mason Ng, Sean Quinlan, Christine Ying, Christopher Zuleeg, David Cowan, Joanna Aptekar-Strober, R. Bailes
  • Publication number: 20060194013
    Abstract: A foam thermoplastic container e.g. cup, bowl molded from expandable thermoplastic particles e.g. expandable polystyrene, has a film made of a thermoplastic resin e.g. solid polystyrene, rubber-modified polystyrene, PET, polyethylene, polypropylene, fused to its inner sidewall surface by heat and pressure to create a barrier to resist the leakage of liquid and food with oil and/or fatty components and to increase the rim strength of the container. The thermoplastic resin film can be fused to the outer surface of the container for printing purposes and/or to create a barrier and/or can be fused to the base surfaces of the container. The molding machine used to form the foam container is used to fuse the film to the container.
    Type: Application
    Filed: May 8, 2006
    Publication date: August 31, 2006
    Inventors: Jiansheng Tang, Jeffory Russell, David Cowan, Michael Williams, Dennis Piispanen, John Kwok
  • Publication number: 20060145030
    Abstract: A system for selectively controlling deformation. The system includes a first mechanism for resisting deformation about an axis of an accompanying fluid foil. A second mechanism, in communication with the first mechanism, enables deformation along the axis and/or at an angle to the axis. In more a specific embodiment, the axis is a lengthwise axis of the fluid foil, which is a transformable airfoil, and the system includes a bellows device that is approximately concentric with the axis. The bellows device is supported by first base structure at one end and a second base structure at another end. The deformation at an angle to the first axis includes shear deformation or bending deformation. The deformation along the axis includes extension or strain deformation. The deformation about the axis includes torsion deformation.
    Type: Application
    Filed: December 7, 2004
    Publication date: July 6, 2006
    Inventors: David Cowan, John Tidwell
  • Publication number: 20060148893
    Abstract: This invention relates to non-steroidal compounds that are or are believed to be modulators of androgen, glucocorticoid, mineralocorticoid, and progesterone receptors, and also to the methods for the making and use of such compounds.
    Type: Application
    Filed: June 9, 2004
    Publication date: July 6, 2006
    Inventors: Jean-Baptiste Blanc, Rodolfo Cadilla, David Cowan, Istvan Kaldor, Andrew Larkin, Eugene Stewart, Ryan Trump, Philip Turnbull
  • Publication number: 20060019275
    Abstract: The invention provides isolated nucleic acid and amino acid sequences of sensory cell specific polypeptides, antibodies to such polypeptides, methods of detecting such nucleic acids and polypeptides, and methods of screening for modulators of sensory cell specific polypeptides.
    Type: Application
    Filed: May 16, 2005
    Publication date: January 26, 2006
    Applicant: The Regents of the University of California
    Inventors: Charles Zuker, Jon Adler, Juergen Lindemeier, David Cowan
  • Publication number: 20050153088
    Abstract: A molded thermoplastic container e.g. cup, bowl made from expandable thermoplastic particles e.g. expandable polystyrene, has a latex coating, e.g. latex of methyl methacrylate and styrene copolymer, latex of methyl acrylate and styrene copolymer, latex of acrylic acid and styrene copolymer, and latex of butadiene and styrene copolymer, applied to at least its inner surface via dipping, brushing or spraying processes for improved leakage and/or stain resistance and/or storage longevity. The coating may be applied to the outer surface of the container for leak resistance and printing purposes. A related method for forming the container, an article of manufacture, and an improved method for storing liquid and food substances are also disclosed.
    Type: Application
    Filed: December 16, 2004
    Publication date: July 14, 2005
    Inventors: Jeffory Russell, David Cowan, Dennis Piispanen, Jiansheng Tang, Michael Williams
  • Publication number: 20050107419
    Abstract: The present invention relates to novel fused heterocyclic ring system compounds and methods for their use in the treatment and prevention of diseases or conditions.
    Type: Application
    Filed: February 24, 2003
    Publication date: May 19, 2005
    Inventors: Ashok Bhandari, Eric Boros, David Cowan, Anthony Handlon, Clifton Hyman, Jeffrey Oplinger, Michael Rabinowitz, Philip Turnbull
  • Publication number: 20050039536
    Abstract: A portable hand-held device for measuring the pressure in an automobile air conditioning system includes a socket adapted to connect to a service port, an internal passage in communication with the socket, and a pressure gauge disposed in the housing selectively in communication with the internal passage. A valve is interposed between the internal passage and the gauge. When the socket is engaged to a service port of an automobile air conditioning system, gas from the automobile air conditioning system enters the socket, passes through the internal passage, and is read by the pressure gauge. A button is provided having a ramped portion, and a pin contacts the ramped portion of the button at one end at the valve at the other end. When the button is depressed, the pin raises the valve into an open position to allow pressurized gas trapped on a gauge side of the valve to be released via the socket to reset the gauge.
    Type: Application
    Filed: August 19, 2003
    Publication date: February 24, 2005
    Inventors: David Cowan, Jochen Schapers, Saul Trachtenberg
  • Patent number: 6789581
    Abstract: A tire repair device is provided. A receptacle/port is in communication with the air flow path; the receptacle/port is adapted to sealingly receive a container of tire sealant. When the air compressor is activated and a container of tire sealant is received in or secured to the receptacle or port, air from the air compressor is forced into the container and pushes tire sealant out of the container, into and out of the receptacle, into the air flow path, and into a tire. Preferably, the receptacle includes a piercing projection disposed in the receptacle adapted to pierce a seal on a container of tire sealant secured in the receptacle. Preferably, the intake and the exhaust are configured in the receptacle so that both the intake and the exhaust are opposite substantially the same opening of a container of tire sealant received in or secured to in the receptacle.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: September 14, 2004
    Assignee: Interdynamics, Inc.
    Inventors: David Cowan, Jochen Schäpers, Saul Trachtenberg
  • Publication number: 20040159365
    Abstract: A tire repair device is provided. A receptacle/port is in communication with the air flow path; the receptacle/port is adapted to sealingly receive a container of tire sealant. When the air compressor is activated and a container of tire sealant is received in or secured to the receptacle or port, air from the air compressor is forced into the container and pushes tire sealant out of the container, into and out of the receptacle, into the air flow path, and into a tire. Preferably, the receptacle includes a piercing projection disposed in the receptacle adapted to pierce a seal on a container of tire sealant secured in the receptacle. Preferably, the intake and the exhaust are configured in the receptacle so that both the intake and the exhaust are opposite substantially the same opening of a container of tire sealant received in or secured to in the receptacle.
    Type: Application
    Filed: October 31, 2002
    Publication date: August 19, 2004
    Inventors: David Cowan, Jochen Schapers, Saul Trachtenberg
  • Patent number: 6560335
    Abstract: Disposable sanitary covers for the earpiece mouth piece and handle of telephone handsets. The covers are designed to provide universal fit to the earpiece or mouth piece, regardless of its shape.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: May 6, 2003
    Assignee: Phone Guard, Inc.
    Inventors: Robert Zohn, Robert A. Marks, Joseph M. Herzog, David Cowan, Jochen Schapers, Allen Bonder
  • Publication number: 20020168635
    Abstract: The invention provides isolated nucleic acid and amino acid sequences of sensory cell specific polypeptides, antibodies to such polypeptides, methods of detecting such nucleic acids and polypeptides, and methods of screening for modulators of sensory cell specific polypeptides.
    Type: Application
    Filed: July 27, 1999
    Publication date: November 14, 2002
    Inventors: CHARLES S. ZUKER, JON E. ADLER, JUERGEN LINDEMEIER, DAVID COWAN
  • Publication number: 20020146115
    Abstract: Disposable sanitary covers for the earpiece mouth piece and handle of telephone handsets. The covers are designed to provide universal fit to the earpiece or mouth piece, regardless of its shape.
    Type: Application
    Filed: January 30, 2001
    Publication date: October 10, 2002
    Inventors: Robert Zohn, Robert A. Marks, Joseph M. Herzog, David Cowan, Jochen Schapers, Allen Bonder
  • Patent number: 6182600
    Abstract: Traffic channeling device includes a delineator stem having hollow upper and lower portions, the upper portion being stepped inwardly along its axial length to form sequential stepped surfaces from the bottom to the top of the upper portion, and the lower portion being frustoconically shaped. Adjacent the bottom of the delineator stem is a radial flange portion which resists pullout of one or more ring-shaped base members placed over the top of the delineator stem to act as ballast for the delineator stem. The base members include a non-circular raised portion and a correspondingly sized recessed portion such that when one base member is stacked on top of another, the recessed portion of one base member will receive the raised portion of the other base member and resist relative rotatable movement between the base members.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: February 6, 2001
    Assignee: Plastic Safety Systems, Inc.
    Inventors: Gregory H. Brown, David E. Cowan, David A. Cowan
  • Patent number: 5865427
    Abstract: Plastic fencing has a plurality of openings therein and one or more strips of reflective tape applied to one or both sides of the fencing to make the fencing more visible under poor lighting conditions as when used as a visual warning barrier around construction sites and the like. To secure the reflective tape to the fencing, the reflective tape is adhered to one side of the fencing in overlying relation to some of the openings therein, and to a plastic backing applied to the opposite side in line with the reflective tape through the openings in the fencing.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: February 2, 1999
    Assignee: Plastic Safety Systems, Inc.
    Inventor: David A. Cowan
  • Patent number: 5421668
    Abstract: A weight or ballast for a temporary traffic control device or post is made of one or more tire tread sections. An opening extending through or formed by the tread sections is sized to receive an upstanding portion of the device or post.
    Type: Grant
    Filed: June 27, 1994
    Date of Patent: June 6, 1995
    Assignee: Plastic Safety Systems, Inc.
    Inventors: David E. Cowan, David A. Cowan
  • Patent number: 5234280
    Abstract: Traffic channeling device includes a deformable plastic drum and a rubber collar insertable over the drum to act as ballast for the drum. The rubber collar comprises a bead portion and an integral side wall portion of a recycled truck tire. When the rubber collar is inserted over the drum, the rubber collar gives the drum a relatively low center of gravity and grips the ground over a relatively large surface area to resist tipping of the drum and eliminate walking of the drum on the ground.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 10, 1993
    Assignee: Plastic Safety Systems, Inc.
    Inventor: David A. Cowan
  • Patent number: D406543
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: March 9, 1999
    Assignee: Plastic Safety Systems, Inc.
    Inventors: Gregory H. Brown, David E. Cowan, David A. Cowan