Bolt Blank Making Patents (Class 470/139)
  • Patent number: 11084200
    Abstract: A silicone extrusion plant has a silicone extruder and a silicone feed device configured to load the silicone extruder. The silicone feed device has a feed hopper. The feed hopper opens into a feed opening at the bottom thereof. The feed opening is in a fluidic connection, via a feed duct, with an inlet zone of the silicone extruder. A feed screw arranged in the feed hopper in such a way as to be drivable for rotation protrudes into the feed opening at least partly. The feed screw has a cone portion and a cylinder portion. According to another aspect, the silicone extrusion plant has at least one feed pressure sensor configured to measure an actual feed pressure of silicone material to be extruded. A control unit is in a signal communication with the feed pressure sensor and a feed drive device in order to drive the silicone feed device.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: August 10, 2021
    Assignee: Raumedic AG
    Inventors: Martin Silbermann, Florian Bär
  • Patent number: 10737313
    Abstract: A transport apparatus for transferring workpieces in a processing device includes at least two stations having at least two gripping tool units arranged on a gripping tool support which is movable back and forth between the stations of the processing device. The gripping tool support is movably mounted so as to be linearly guided and mounted by a parallelogram guide arrangement so as to be displaceable transversely with respect to its linearly guided movability. The gripping tool support is movable by a gripping tool support drive with two crank gear arrangements each having a gripping tool support drive motor.
    Type: Grant
    Filed: April 25, 2017
    Date of Patent: August 11, 2020
    Assignee: Hatebur Umformmaschinen AG
    Inventors: Markus Moser, Simon Reimer, Andreas Maritz, Andreas Matt
  • Publication number: 20140157855
    Abstract: Tooling for making pointed headed bolts of a given diameter in numerous lengths with roll thread ready threaded to the head and partially threaded shanks in a four forming station forming machine, the tools being configured to work on wire stock as received at the first station of a diameter larger than or substantially the same as the roll diameter and not greater than the nominal diameter of the bolt, including at least two sequential head forming tools for mounting on the slide, an extrusion pointing tool for mounting on the die breast, a roll diameter extrusion tool for mounting on the die breast and a head support tool mountable in a station on the slide at multiple axial positions corresponding to standard lengths of the bolts being made, the head support tool being arranged to work at either the extrusion pointing station or the roll diameter extrusion station.
    Type: Application
    Filed: July 9, 2013
    Publication date: June 12, 2014
    Inventors: Todd Hossler, Stanley J. Wasserman
  • Patent number: 8485013
    Abstract: A set of tooling for making pointed headed bolts of a given diameter in numerous lengths with roll thread ready threaded to the head and partially threaded shanks in a four forming station forming machine, the tools being configured to work on wire stock as received at the first station of a diameter larger than or substantially the same as the roll diameter and not greater than the nominal diameter of the bolt, including at least two sequential head forming tools for mounting on the slide, an extrusion pointing tool for mounting on the die breast, a roll diameter extrusion tool for mounting on the die breast and a head support tool mountable in a station on the slide at multiple axial positions corresponding to standard lengths of the bolts being made, the head support tool being arranged to work at either the extrusion pointing station or the roll diameter extrusion station.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: July 16, 2013
    Assignee: National Machinery LLC
    Inventors: Todd Hossler, Stanley J. Wasserman
  • Patent number: 5946966
    Abstract: A upset forging machine assembly (20) including a pair of gripper dies (22, 24) for gripping forging stock in a closed position and movable to an open position for receiving stock and removing a forged part. A gripper drive mechanism (34) moves the gripper dies (22, 24) between the open and closed positions. A header (84) is removably clamped to a header support member (36) by multiple pairs of studs (72) extending from the header support member (36) with each stud (72) having a head (78) disposed in an associated channel (90) in the header (84). An actuation mechanism (92, 94) moves the studs (72) between a clamped position and a release position. A tool punch (142) is supported by the header (84) for upsetting the forging stock. Having the header (84) clamped to the header support member (36), a header drive mechanism (46) moves the header support member (36) to a forging position is when the gripper dies (22, 24) are in the closed position.
    Type: Grant
    Filed: September 24, 1997
    Date of Patent: September 7, 1999
    Assignee: Tool Dex, Inc.
    Inventor: Tony Madaffer
  • Patent number: 5893290
    Abstract: A screwhead forming apparatus includes an operating mechanism driven to reciprocate, a male die driven by the operating mechanism to reciprocate and having a die cavity of a predetermined shape, a stationary female die, and a punch rod driven by the operating mechanism to impel the blank into the die cavity of the male die so as to forge an elongated blank. A compression spring assembly consists of a plurality of spring units which are disposed between the operating mechanism and the male die and which have different spring forces so that the spring assembly creates a successively increasing spring force to bias the male die to press against the female die after the male die is brought to contact the female die by the operating mechanism during movement of the punch rod relative to the female die. The spring units are compressed completely just before the blank is moved entirely into the die cavity of the male die so as to prevent removal of the male die from the female die.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: April 13, 1999
    Assignee: FWU Kuang Enterprises Co., Ltd.
    Inventor: Yun-Te Chang