Patents by Inventor Lambertus C. Mets

Lambertus C. Mets 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).

  • Processes of manufacturing prestressed concrete
    Patent number: 5114653
    Abstract: Methods of forming cast prestressed concrete elements and structures include a non-corrosive reinforcing element being formed of a plurality of substantially parallel continuous filaments embedded in a matrix of thermosetting resin. These reinforcing elements are tensioned, then concrete cast about the elements is permitted to harden and the tension transferred to the now-hardened concrete in order to prestress the same. The resulting concrete elements and structures have high resistance to alkali induced corrosion of the prestressing elements.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: May 19, 1992
    Assignees: Akzo N.V., Hollandsche Beton Groep N.V.
    Inventors: Hans-Juergen Schuerhoff, Arie Gerritse, Lambertus C. Mets
  • Dosing unit comprising a detergent and/or a bleaching agent
    Patent number: 4622161
    Abstract: Dosing unit comprising a detergent and/or a bleaching agent contained in a sachet which entirely or partly consists of a sealable substrate and is provided with one or more seams that are sealed with a water-sensitive coating composition.The moment at which the sachet opens is to a great extent independent of the agitation and heating up behaviour of the (dish)washing machine. This is attained by using a coating composition comprisingan anionic and/or a nonionic water binding polymer anda cationic polymeric adhesive.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: November 11, 1986
    Assignee: Akzo N.V.
    Inventors: Emery G. P. Cornelissens, Jurjen P. Hofland, Lambertus C. Mets