Patents by Inventor Amotz Weinberg

Amotz Weinberg 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).

  • Patent number: 7826642
    Abstract: An electro-optical method and apparatus for evaluating the dimensions of any protrusion from the threshold of the fabric surface is achieved by bending any length of fabric over a rotating roller so that the contoured area of the protrusion body above the surface can be visualized. The image of the silhouette as seen by a digital camera is processed by image processing algorithms then processed statistically and then by a neural network to yield an integrated picture of the fabric protrusions. The grading results of pilling are well correlated to the human visual method of pilling evaluation.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: November 2, 2010
    Assignee: Shenkar College of Engineering and Design
    Inventors: Arkady Cherkassky, Amotz Weinberg
  • Patent number: 7597903
    Abstract: A medical device and a method for imparting antibacterial properties to the device, made from hydrophobic polymer, particularly to urinary latex catheters comprises treatment of the device by spreading, dipping or spraying and consequent drying with natural biodegradable polymers (A), composition including a cross-linking agent (B) for partial cross-linking the mentioned polymer and an anti-microbial agent compatible with A and B. The polymer may be from a group of polysachharides, for example polyglucosamine-chitosan. For partial cross-linking of the polymer substances having aldehyde groups such as glucose or evolving aldehydes such as hexamethylenetetramine or their mixtures are used. The polymer is able to form on the surface of the medical device a thin film that swells in wet or moisturized state once inserted into the body. In the swollen state it will gradually release an anti-microbial agent.
    Type: Grant
    Filed: December 2, 2002
    Date of Patent: October 6, 2009
    Assignee: Shenkar College of Engineering and Design
    Inventors: Cecilia Rosinskaya, Amotz Weinberg
  • Patent number: 7487733
    Abstract: The invention relates to the joining of fabrics made of advanced fibers for making pre-forms for composite materials. The invention provides a sewing machine needle which can be used to join fabrics by stitching with a brittle thread. The needle, according to the invention, for stitching a brittle fiber thread through at least one layer of fibrous fabric, being characterized by the head (point) thereof having an (open eye) slit proximate to the needle point for receipt and release of the brittle thread, the slit of the needle having an arc shape with a radius of curvature of not less than 1 mm, to prevent sharp bending of the brittle thread when the thread is in contact with the slit.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: February 10, 2009
    Assignees: Shenkar College of Engineering and Design
    Inventors: Amotz Weinberg, Yair Eilam
  • Patent number: 7475647
    Abstract: The present invention provides a sewing mechanism which is useful for joining fabrics with a brittle thread. The invention provides a sewing mechanism having a needle for stitching a brittle fiber thread through at least one layer of a fibrous fabric, the mechanisms for supplying the sewing thread to the needle on each edge thereof while the needle penetrates the layer or layers of fibrous fabric, thread supply being controlled to equalize the supply on both sides of the needle to prevent axial movement of the thread relative to the needle while the needle moves downwards. The mechanism further supports a revolving spool of a second thread and arranged to insert the second thread through a loop formed by the sewing thread at the remote side of the layer of fibrous fabric.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: January 13, 2009
    Assignee: Shenkar College of Engineering and Design
    Inventors: Amotz Weinberg, Yair Eilam
  • Publication number: 20070248246
    Abstract: An electro-optical method and apparatus for evaluating the dimensions of any protrusion from the threshold of the fabric surface is achieved by bending any length of fabric over a rotating roller so that the contoured area of the protrusion body above the surface can be visualized. The image of the silhouette as seen by a digital camera is processed by image processing algorithms then processed statistically and then by a neural network to yield an integrated picture of the fabric protrusions. The grading results of pilling are well correlated to the human visual method of pilling evaluation.
    Type: Application
    Filed: April 12, 2007
    Publication date: October 25, 2007
    Inventors: Arkady Cherkassky, Amotz Weinberg
  • Publication number: 20060112867
    Abstract: The invention relates to the joining of fabrics made of advanced fibers for making pre-forms for composite materials. The invention provides a sewing machine needle which can be used to join fabrics by stitching with a brittle thread. The needle, according to the invention, for stitching a brittle fiber thread through at least one layer of fibrous fabric, being characterized by the head (point) thereof having an (open eye) slit proximate to the needle point for receipt and release of the brittle thread, the slit of the needle having an arc shape with a radius of curvature of not less than 1 mm, to prevent sharp bending of the brittle thread when the thread is in contact with the slit.
    Type: Application
    Filed: July 26, 2005
    Publication date: June 1, 2006
    Inventors: Amotz Weinberg, Yair Eilam
  • Publication number: 20060112865
    Abstract: The present invention relates to the joining of fabrics made of advanced fibers for making preforms for composite materials. More particularly, the invention provides a sewing mechanism which is useful for joining fabrics with a brittle thread. The invention provides a sewing mechanism having a needle for stitching a brittle fiber thread through at least one layer of a fibrous fabric, the mechanisms for supplying the sewing thread to the needle on each edge thereof while the needle penetrates the layer or layers of fibrous fabric, thread supply being controlled to equalize the supply on both sides of the needle to prevent axial movement of the thread relative to the needle while the needle moves downwards. The mechanism further supporting a revolving spool of a second thread and arranged to insert the second thread through a loop formed by the sewing thread at the remote side of the layer of fibrous fabric.
    Type: Application
    Filed: July 21, 2005
    Publication date: June 1, 2006
    Inventors: Amotz Weinberg, Yair Eilam
  • Publication number: 20040106912
    Abstract: A medical device and a method for imparting antibacterial properties to the device, made from hydrophobic polymer, particularly to urinary latex catheters comprises treatment of the device by spreading, dipping or spraying and consequent drying with natural biodegradable polymers (A), composition including a cross-linking agent (B) for partial cross-linking the mentioned polymer and an anti-microbial agent compatible with A and B.
    Type: Application
    Filed: December 2, 2002
    Publication date: June 3, 2004
    Inventors: Cecilia Rosinskaya, Amotz Weinberg
  • Publication number: 20040008870
    Abstract: An electro-optical method and apparatus for evaluating the dimensions of any protrusion from the threshold of the fabric surface is achieved by bending any length of fabric over a rotating roller so that the contoured area of the protrusion body above the surface can be visualized. The image of the contour as seen by a digital camera is processed statistically and then by a neural network to yield an integrated picture of the fabric protrusions. The grading results of pilling are well correlated to the visual method of pilling evaluation.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 15, 2004
    Inventors: Arkady Cherkassky, Amotz Weinberg
  • Patent number: 5856248
    Abstract: Cellulose fibers and products comprising such fibers treated to absorb body secretions and to substantially decrease microbial growth, said fibers being chemically treated with a water soluble salt of a transition metal and an alkali and after this with a solution of a bisbiguanide compound, forming a bond between the fibers, the transition metal and the bisbiguanide. Preferred are water-soluble cupric salts as a suitable hydroxide. A preferred bisbiguanide is chlorhexidine. The products can be yarns, knitted, woven, non-woven fabrics, paper gauze and especially bandages, wound dressings, pads, diapers, sanitary napkins, tampons, bed sheets, pants, garments, towels, socks, shoe linings and underwear. Preferably between 0.1 to 3.0 weight per cent copper calculated on the cellulose is bonded to the cellulose.
    Type: Grant
    Filed: April 22, 1996
    Date of Patent: January 5, 1999
    Inventor: Amotz Weinberg
  • Patent number: 5504975
    Abstract: A method and apparatus for combing wool in which the wool is heated prior to being fed to the combing process. The wool is heated by heat rollers or other means to a temperature such that it becomes more plasticized and better lubricated due to the liquification of the natural fat of wool which then acts better as a lubricant. As a result of this process, there is a reduction in the amount of noil produced. The invention is also applicable to various other animal-based natural fibers.
    Type: Grant
    Filed: April 6, 1996
    Date of Patent: April 9, 1996
    Assignee: Shenkar College of Textile Technology & Fashion
    Inventors: Herzel Bar, Amotz Weinberg
  • Patent number: 5449025
    Abstract: Methods for weaving three-dimensional fabric structures which have a desired cross-sectional shape and devices for such weaving in each of two mutually perpendicular directions allow sheds to be formed in planar warps. The sheds enable the insertion of parallel weft yarns through rows of warp yarns. High density three-dimensional fabrics which may be used in the manufacture of advanced composite materials can be woven.
    Type: Grant
    Filed: September 16, 1993
    Date of Patent: September 12, 1995
    Assignee: Shenkar College of Textile Technology & Fashion
    Inventor: Amotz Weinberg