Patents by Inventor Richard Widmer

Richard Widmer 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).

  • Connection element for connecting neighboring connection sections on tubes and/or container openings, in particular on laboratory apparatus
    Patent number: 6276729
    Abstract: The connection element (1) is preferably provided with two retaining collars (5, 5′) which enclose the connection sections (2, 2′) which do the holding together. The retaining collars are releasably connected to one another or held against one another by way of fastening elements, preferably screw bolts (6). Each retaining collar consists of at least two segments (9a, 9b). With this the fastening elements have additionally also still the function of holding together the two segments. For releasing the connection at least one of the segments can be pivoted open.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 21, 2001
    Assignee: Buchi Labortechnik AG
    Inventors: Marco Sanwald, Richard Widmer