Patents by Inventor Christian Rypstra

Christian Rypstra 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).

  • Pressure-relief one-way valve applicable to a package containing a gas-releasing product, wherein there coexist a fluid medium and an air bubble, and a package including said valve
    Patent number: 7490623
    Abstract: A one-way pressure-relief valve (4) applicable to a package (1) which contains a gas releasing product, said package (1) comprising walls defining a package structure for said product, one of such walls (2) bearing at least one orifice (3) for gases to be expelled, on which orifice the one-way valve (4) is applied, valve (4) comprising a thin flexible bottom sheet (5) provided with an opening (7) and a thin flexible top sheet (6) overlapping bottom sheet (5), wherein bottom sheet (5) is attached to the top sheet (6) in a region defined by the edge of valve (4) and a closed perimeter (7?), the closed perimeter (7?) being defined on a substantially central region of valve (4), surrounding opening (7); a portion of closed perimeter (7?) being located substantially near a portion of the perimeter of opening (7), defining a first sector (8) within which a gas medium is enclosed, and the remaining portion of closed perimeter (7?) is located substantially apart from the remaining portion of opening (5) perimeter, de
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: February 17, 2009
    Assignee: Celomat S.A.
    Inventor: Christian Rypstra
  • Pressure-relief one-way valve applicable to a package containing a gas-releasing product, wherein there coexist a fluid medium and an air bubble, and a package including said valve
    Publication number: 20060076058
    Abstract: A one-way pressure-relief valve (4) applicable to a package (1) which contains a gas releasing product, said package (1) comprising walls defining a package structure for said product, one of such walls (2) bearing at least one orifice (3) for gases to be expelled, on which orifice the one-way valve (4) is applied, valve (4) comprising a thin flexible bottom sheet (5) provided with an opening (7) and a thin flexible top sheet (6) overlapping bottom sheet (5), wherein bottom sheet (5) is attached to the top sheet (6) in a region defined by the edge of valve (4) and a closed perimeter (7?), the closed perimeter (7?) being defined on a substantially central region of valve (4), surrounding opening (7); a portion of closed perimeter (7?) being located substantially near a portion of the perimeter of opening (7), defining a first sector (8) within which a gas medium is enclosed, and the remaining portion of closed perimeter (7?) is located substantially apart from the remaining portion of opening (5) perimeter, de
    Type: Application
    Filed: October 6, 2005
    Publication date: April 13, 2006
    Applicant: CELOMAT S.A.
    Inventor: Christian Rypstra