Patents by Inventor Alois Kolbl

Alois Kolbl 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: 6712572
    Abstract: An expansion dowel having a cylindrical expansion body (1) having a through-bore (3) and formed of at least two segments (4a, 4b) connected with each other, an additional expansion element (7) located in a recess (8) formed in an outer profile (6) of the expansion member (1) and having a radial depth of the recess (8) diminishing in a setting direction (S) of the expansion dowel; the additional expansion element (7) having a radial extent at least partially greater than a maximal dept of the recess (8).
    Type: Grant
    Filed: July 12, 2002
    Date of Patent: March 30, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Heinz Bisping, Alois Kölbl, Jürgen Wieser, Claudia Zimmerer
  • Publication number: 20030017023
    Abstract: An expansion dowel formed of an expansion sleeve (1) slotted at least along a portion of its longitudinal extent, starting from an end of the expansion sleeve (1) facing in a setting direction (S) of the expansion dowel, and an expansion member (2) formed of at least two segments (7, 8), receivable in the through-bore (3) of the expansion sleeve (1), and having an outer profile (6) widening in the setting direction (5) for expanding the expansion sleeve (1) and a bore (4) provided with an inner thread (5).
    Type: Application
    Filed: July 12, 2002
    Publication date: January 23, 2003
    Inventors: Heinz Bisping, Alois Kolbl, Jurgen Wieser, Claudia Zimmerer
  • Publication number: 20030017024
    Abstract: An expansion dowel having a cylindrical expansion body (1) having a through-bore (3) and formed of at least two segments (4a, 4b) connected with each other, an additional expansion element (7) located in a recess (8) formed in an outer profile (6) of the expansion member (1) and having a radial depth of the recess (8) diminishing in a setting direction (S) of the expansion dowel; the additional expansion element (7) having a radial extent at least partially greater than a maximal dept of the recess (8).
    Type: Application
    Filed: July 12, 2002
    Publication date: January 23, 2003
    Inventors: Heinz Bisping, Alois Kolbl, Jurgen Wieser, Claudia Zimmerer
  • Publication number: 20020079710
    Abstract: A shaped part having a hollow cylindrical body (1) having at least two longitudinal slots (5) extending over a larger portion of a longitudinal extent of the hollow cylindrical body (1) and open at one of end surfaces of the hollow cylindrical body (1), and a circumferential undercut formed in an inner wall (3) of the hollow cylindrical body (1) in its longitudinal region intersected by the longitudinal slots (5), spaced from the one end surface, and having a flank (9) tapering toward the one end.
    Type: Application
    Filed: November 30, 2001
    Publication date: June 27, 2002
    Inventors: Jurgen Wieser, Heinz Bisping, Claudia Zimmerer, Peter Scheffler, Erich Daigeler, Alois Kolbl
  • Patent number: 6238128
    Abstract: A dowel including an anchor rod (2) provided at front, in a setting direction, end with a head portion (4) widening in the setting direction, and a sleeve (5) having a through-bore and axially displaceable along the anchor rod, with the sleeve (5) having, at its end adjacent to the head portion (4) an expansion region (6) formed by a plurality of expansion tabs (7) separated from each other by substantially axially extending slots (8) and radially expandable upon a relative displacement of the sleeve (5) and the anchor rod (2), and a sleeve section adjoining the expansion region (6) and having, in its rear end region (10), a larger diameter (G) than in its front end region (12) adjoining the expansion region (6), with the sleeve section having a narrowing intermediate region (11) extending between the rear end region (10) and the front end region (12) and having a smallest outer diameter (M) which is smaller than an outer diameter (F) in the front end region (12).
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Hilti Aktiengesellschaft
    Inventors: Werner Kaibach, Stefan Raber, Hans-Jürgen Negele, Alois Kölbl, Ulrich Genschmer