Patents by Inventor David Letort

David Letort 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: 6318764
    Abstract: The invention relates to a detachable rapid-action coupling device designed to receive a tubular plug-in element (3) having a circular retaining rib (4). Said device comprises a receiving housing (1) having a cylindrical receiving space (6) for introducing the plug-in element (3) and a separate retaining element (2) made of hard-elastic plastic material and having elastically expandable retaining edges (17) facing inwards in the shape of an arc of a circle, which edges serve to engage the retaining rib (4) from behind after the plug-in element (3) has been introduced. The retaining element (2) can be pushed in from the outside in an opening (11) of the housing wall (5) to release the plug-in element (3). The receiving space (6) consists of three stepped sections. The housing (1) is embodied as a two-part structure. In order to move the opening (11) for pushing in and releasing the retaining element (2) into a better position, if necessary, when only limited space is available.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: November 20, 2001
    Assignee: A. Raymond & Cie
    Inventors: Michael Trede, Erminio Moretti, David Letort