Patents by Inventor Ronald Ekkel

Ronald Ekkel 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: 20190331273
    Abstract: A press fitting device (1) for establishing a fluid-tight connection with at least one pipe section (10), the press fitting device being configured to generate a sound when a gaseous fluid flows along or through the press fitting device a) in a pre-press fit condition, in which a connection with the at least one pipe section is established and before the connection is press-fit; and/or b) in a press fit condition, in which the connection is press-fit, if the connection is not fluid-tight.
    Type: Application
    Filed: June 29, 2017
    Publication date: October 31, 2019
    Applicant: Wavin B.V.
    Inventors: Bastiaan Vos, Gerrit Jan Nijman, Ruurd Johan Berend Van Leeuwen, Marc Herwin De Groot, Ronald Ekkel
  • Patent number: 5133125
    Abstract: Described is a method for manufacturing light weight roller in which a thin metal roller casing, such as a thin electroformed sleeve, is centered by journals after which inside the roller casing a low density filling is applied. The low density filling may be a set plastic foam or gas under pressure. In a further embodiment a metal inner roller casing is present which is concentric with an outer roller casing. The space inside the inner casing and the space between the inner casing and the outer casing may be filled with a low density material. Also is described a roller thus obtained having a roller casing of electroformed nickel of a thickness between 100 and 500 .mu.m.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: July 28, 1992
    Assignee: Stork Screens B. V.
    Inventors: Bernard P. Diebels, Ronald Ekkel, Anthonius M. van der Meulen