Patents by Inventor Bruno Mergell

Bruno Mergell 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: 5944246
    Abstract: A welding device, in particular a stud welding device with a stroke compensating arrangement comprises a clamping member cooperating with a dragging sleeve and a conically shaped region of an actuating pin capable of reciprocating in its longitudinal direction. The dragging sleeve at least partially surrounds the clamping member and the region. The clamping member is designed in the form of a hollow cylinder with at least one elastic portion which can be brought to rest radially on the dragging sleeve by the region, and a carrier member is provided on which the clamping member rests in part.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: August 31, 1999
    Assignee: Emhart Inc.
    Inventor: Bruno Mergell
  • Patent number: 5695045
    Abstract: Stud feeder with an adapter (1), in which a conveying duct (4) and a stud feed orifice (3) designed substantially perpendicularly to the conveying duct (4) are provided, with a cylindrical or slightly conical stud holder (2) arranged coaxially to the conveying duct (4) and with a loading pin (10) which is capable of moving to and fro in the conveying duct (4) and which displaces studs (9) from the stud feed orifice (3) to the stud holder (2), characterized in that the conveying duct (4) is formed by a tubular gripper (5) which is slotted at least over a proportion of its length, and the gripper segments (6) are resilient substantially perpendicularly to their length.
    Type: Grant
    Filed: November 16, 1995
    Date of Patent: December 9, 1997
    Assignee: Emhart Inc.
    Inventors: Bruno Mergell, Hans Peter Seng, Hans Wiessler, Alfred Gerhardt, Norbert Tessarsch
  • Patent number: 4942283
    Abstract: Stud welding apparatus comprising a housing, a spring-loaded stud holder which holds a welding stud in welding position by its resilient restoring force, a feed channel through which the stud is delivered into a substantially cylindrical space within the stud holder, and loading means which is movable relatively to the welding stud by a pneumatic piston and which presses the stud into the stud holder against the resilient restoring force, characterized in that the loading means is pivotally attached about an axis fixed in relation to the housing, that at least one lever is disposed between the loading means and the pneumatic piston whereby the pivotal point of said lever on the loading means is spaced by a small distance from its axis of rotation and that loading means, lever and the movement of the pneumatic piston are coordinated so that loading means is pivotable between a loading position, in which the feed channel is cleared, and a position in which the loading means presses stud into the stud holder.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: July 17, 1990
    Assignee: Emhart Industries, Inc.
    Inventor: Bruno Mergell