Patents by Inventor Ewald Valtwies

Ewald Valtwies 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: 6575659
    Abstract: A conical screw connection for multi-disk shaft couplings is described, having a tension bolt (1), a first spring collet (3) arranged on the tension bolt and having a collar (2), at least one second spring collet (5) having a collar (4) and supported by the first spring collet, with the disks of the multi-disk set being securable on said second spring collet, wherein the seat between the tension bolt and the first spring collet is conical, and the seat between the first spring collet and the second spring collet is cylindrical, and a tension element (7) which axially clamps the disks of the multi-disk set, where the tension bolt has a threaded borehole (8) for a screw (9) whose head (10) is supported on the tension element.
    Type: Grant
    Filed: February 8, 2000
    Date of Patent: June 10, 2003
    Assignee: Atec-Weiss GmbH & Co KG
    Inventors: Ewald Valtwies, Stefan Uhlen
  • Patent number: 6471594
    Abstract: A flexible all-steel shaft coupling includes two connecting flanges (1, 2) and an intermediate piece (3, 3′) arranged between the connecting flanges, with a disk ring (4, 5) being arranged between each of the two connecting flanges and the intermediate piece; said disk ring being connected alternately to the respective connecting flange and the intermediate piece, by means of circumferentially-distributed studs (6, 7, 7′) and tension sleeves (8, 9), each comprising a radially protruding end stop, (13, 14), as well as spacer rings (10) held on the tension sleeves, so that the connecting flanges are interconnected so as to be torsionally rigid but with angular movement and axial movement; with each of the studs (6) connected to the connecting flanges being associated with only a single tension sleeve.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: October 29, 2002
    Assignee: Atec-Weiss GmbH & Co. KG
    Inventors: Gunter Scheithauer, Ewald Valtwies, Patrice Millet, Rudolf Weiss
  • Publication number: 20010049307
    Abstract: Described is a flexible all-steel shaft coupling comprising two connecting flanges (1, 2) and an intermediate piece (3, 3′) arranged between the connecting flanges, with a disk ring (4, 5) being arranged between each of the two connecting flanges and the intermediate piece; said disk ring being connected alternately to the respective connecting flange and the intermediate piece, by means of circumferentially-distributed studs (6, 7, 7′) and tension sleeves (8, 9), each comprising a radially protruding end stop (13, 14), as well as spacer rings (10) held on the tension sleeves, so that the connecting flanges are interconnected so as to be torsionally rigid but with angular movement and axial movement; with each of the studs (6) connected to the connecting flanges being associated with only a single tension sleeve.
    Type: Application
    Filed: April 20, 2001
    Publication date: December 6, 2001
    Inventors: Gunter Scheithauer, Ewald Valtwies, Patrice Millet, Rudolf Weiss