Patents by Inventor Siegfried Jackwerth

Siegfried Jackwerth 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: 8813931
    Abstract: A free-wheel cage ring, having two annular flanged disks that extend radially and are connected to each other to form an axial intermediate space and have clamping bodies therebetween pivotally arranged in the cage ring and are biased for coupling by a spring, the clamping bodies perform, due to centrifugal force, a pivoting motion for decoupling against the spring force, and at least two guide surfaces are allocated to each clamping body in its axial extent, that engage opposite end peripheral regions of the clamping body, guide them at least in the peripheral direction, and have a break through which the clamping bodies extend to a radially inner clamping surface. The axial length of the clamping body radially inner clamping surface is equal to the total length of the clamping body. The guide surfaces are each formed integrally by recesses on opposite end faces of the flanged disks.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: August 26, 2014
    Assignee: RINGSPANN GmbH
    Inventors: Siegfried Jackwerth, Karlheinz Timtner, Ruprecht Maurer
  • Patent number: 7870940
    Abstract: A frictionally engaged free-wheel clutch with an exterior ring, an interior ring approximately concentric in reference thereto, and several clamping bodies arranged in the circular gap between the interior and the exterior ring, which block a rotation of the interior ring relative to the exterior one in one direction and release it in the opposite direction. Here, it is essential that the clamping body and/or the running paths of the interior and/or the exterior ring are provided with a friction-increasing coating.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: January 18, 2011
    Assignee: RINGSPANN GmbH
    Inventors: Siegfried Jackwerth, Thomas Heubach
  • Publication number: 20100326783
    Abstract: A free-wheel cage ring, having two annular flanged disks (1, 2; 11, 12) that extend essentially in the radial direction and that are connected to each other to form an axial intermediate space and that have, between themselves, a plurality of clamp bodies (4; 14) that are arranged so that they can pivot in the cage ring and that are biased in the coupling sense by at least one leg spring (6; 16; 26; 36), wherein the clamping bodies (4; 14) perform, under the effect of centrifugal force, a pivoting motion acting in the decoupling sense against the spring force, and at least two guide surfaces (5c, 5d; 15) are allocated to each clamping body (4, 14) in its axial extent, and these guide surfaces engage opposite end peripheral regions of the clamping body (4, 14), guide them at least in the peripheral direction of the flanged disks (1, 2; 11, 12), and have, at least on the radial inner side, a break through which the clamping bodies (4; 14) extend to a radially inner clamping surface.
    Type: Application
    Filed: June 25, 2010
    Publication date: December 30, 2010
    Applicant: RINGSPANN GmbH
    Inventors: Siegfried Jackwerth, Karlheinz Timtner, Ruprecht Maurer
  • Publication number: 20070284208
    Abstract: A frictionally engaged free-wheel clutch with an exterior ring, an interior ring approximately concentric in reference thereto, and several clamping bodies arranged in the circular gap between the interior and the exterior ring, which block a rotation of the interior ring relative to the exterior one in one direction and release it in the opposite direction. Here, it is essential that the clamping body and/or the running paths of the interior and/or the exterior ring are provided with a friction-increasing coating.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 13, 2007
    Applicant: RINGSPANN GMBH
    Inventors: Siegfried Jackwerth, Thomas Heubach
  • Publication number: 20010019003
    Abstract: A free wheel retaining ring has a plurality of clamping elements pivotably mounted and biased by at least one spring toward an engaging position, wherein the clamping elements are supported radially outwardly on the edge of the retaining ring and execute a swivelling motion acting toward a disengaging position, under the action of centrifugal force against the force of the spring. The free wheel retaining ring is constructed in one piece and has in its cylindrical region a plurality of windows following one after the other in the circumferential direction, in which the clamping elements are guided in the circumferential direction while simultaneously being supported radially outwardly.
    Type: Application
    Filed: February 27, 2001
    Publication date: September 6, 2001
    Applicant: Ringspann GmbH
    Inventors: Siegfried Jackwerth, Karlheinz Timtner
  • Patent number: 5645149
    Abstract: A freewheel retainer ring with centrifugal force takeoff has two ring-shaped edge rings which are connected with each other by several axial connecting bolts and which mount clamping members between them. For this purpose, separate pockets are arranged respectively at both end faces of the clamping members. The pockets at least guide the clamping member in the circumferential direction, whereby one pocket is connected with one edge ring, and the other pocket is connected with the opposite edge ring.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Ringspann GmbH
    Inventors: Ruprecht Maurer, Karlheinz Timtner, Siegfried Jackwerth