Patents Assigned to Erlau AG
  • Patent number: 10207547
    Abstract: The invention relates to a shield-shaped side-wall protection element for a vehicle tire and to a protective device for vehicle tires. In order to provide a side-wall protection element for vehicle tires that can optimally protect a tire side wall under rough conditions, that can be produced economically, and is easy to install, the invention provides a shield-shaped side-wall protection element for a vehicle tire, comprising a radially inner base, an outer edge, which forms the radially outer end and which extends in a circumferential direction, and with a shield segment, which extends from the outer edge at least to the base, wherein the outer edge is at least partially offset axially inward from the base). The protective device for vehicle tires according to the invention comprises a plurality of shield-shaped side-wall protection elements arranged overlapping in the manner of shingles in a circumferential direction.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: February 19, 2019
    Assignee: ERLAU AG
    Inventors: Johannes Werner Rieger, Daniel Urban
  • Patent number: 9950581
    Abstract: The invention relates to an anti-skid chain, in particular for forestry and agricultural vehicles. The anti-skid chain is to permit high traction, while it has a low weight and can be easily mounted. It should simultaneously be permitted for driving on roads. To enable this, an anti-skid chain to be attached to two wheels with tires disposed one behind the other at fixed distances, in particular for the two wheels of a tandem axle, is provided according to the invention. The anti-skid chain comprises two lateral, laterally stable guide chains which are located, in the mounted state, laterally of the tread of the tires. Between the two guide chains, a chain mesh with chain strands extends. Preferably, the chain mesh is subdivided into ladder sections which are only connected to each other via the guide chain. Joint points of the guide chains are located in a radial position between the radius of the tire shoulder and the tire center. The guide chains are in particular embodied as plate link chains.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: April 24, 2018
    Assignee: Erlau AG
    Inventors: Mathis Weerts, Johannes Rieger
  • Patent number: 9234564
    Abstract: The present invention relates to a closure assembly (1, 1?) for closing a connecting link (100) of a tire chain, comprising at least one closure element (10, 10?) that has at least one leg reception member (14, 14?) configured to receive therein, at least sectionwise, a leg (101) of the connecting link (100). In addition, the present invention relates to a connecting link (100) for connecting at least two links of a tire chain, comprising two legs (101) that are interconnected via a yoke (108) as well as to a tire chain, in particular a tire protection chain.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: January 12, 2016
    Assignee: ERLAU AG
    Inventors: Rüdiger Wendt, Mathis Weerts, Francesco Di Giusto
  • Patent number: 9108475
    Abstract: The invention relates to a locking plate (1) for tensioning a tire chain by means of a ten-sioning chain (46), and to an arrangement, comprising a locking plate (1) and a pull-through bracket (40). The locking plate comprises a locking slot (10) whose clear width is greater than a thickness and smaller than an outer width of the chain links (34) of the tensioning chain, and with a pull-through opening with an inner contour into which an outer contour of the tensioning chain can be entered. The tensioning chain can be captively received in the locking plate transversely to its longitudinal extension to be movable between a locking position (18) arranged in the region of the locking slot and a pull-through position (16) arranged in the region of the pull-through opening.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: August 18, 2015
    Assignee: Erlau AG
    Inventors: Mathis Weerts, Ruediger Wendt, Bernd Roesler
  • Publication number: 20150121835
    Abstract: The present invention relates to a closure assembly (1, 1?) for closing a connecting link (100) of a tyre chain, comprising at least one closure element (10, 10?) that has at least one leg reception member (14, 14?) configured to receive therein, at least sectionwise, a leg (101) of the connecting link (100). In addition, the present invention relates to a connecting link (100) for connecting at least two links of a tyre chain, comprising two legs (101) that are interconnected via a yoke (108) as well as to a tyre chain, in particular a tyre protection chain.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 7, 2015
    Applicant: ERLAU AG
    Inventors: Rüdiger Wendt, Mathis Weerts, Francesco Di Giusto
  • Patent number: 8303045
    Abstract: A protective device for tire walls has a holder for attaching the protective device on a wheel. The protective device has protective elements connected to the holder. The protective elements are shape-stable parts that under load are elastically deformable. They extend approximately radially away from the holder. The protective elements do not protect the entire tire but only the endangered area of the tire walls.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: November 6, 2012
    Assignee: Erlau AG
    Inventors: Hansjörg Rieger, Johannes Werner Rieger, Zvonimir Bogdan
  • Patent number: 7930874
    Abstract: A chain member assembly for a tire chain has a link having at least one receiving opening delimited by a wall and a ring member engaging the receiving opening. The wall of the receiving opening has at least in the contact area with the ring member at least two contact surfaces spaced apart from one another and a recessed wall section positioned between the at least two contact surfaces. The ring member has an inner side that rests areally against the at least two contact surfaces.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 26, 2011
    Assignee: Erlau AG
    Inventors: Johannes Werner Rieger, Zvonimir Bogdan
  • Publication number: 20100060072
    Abstract: A protective device for tire walls has a holder for attaching the protective device on a wheel. The protective device has protective elements connected to the holder. The protective elements are shape-stable parts that under load are elastically deformable. They extend approximately radially away from the holder. The protective elements do not protect the entire tire but only the endangered area of the tire walls.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 11, 2010
    Applicant: ERLAU AG
    Inventors: Hansjörg Rieger, Johannes Werner Rieger, Zvonimir Bogdan
  • Publication number: 20090056301
    Abstract: A chain member assembly for a tire chain has a link having at least one receiving opening delimited by a wall and a ring member engaging the receiving opening. The wall of the receiving opening has at least in the contact area with the ring member at least two contact surfaces spaced apart from one another and a recessed wall section positioned between the at least two contact surfaces. The ring member has an inner side that rests areally against the at least two contact surfaces.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 5, 2009
    Applicant: ERLAU AG
    Inventors: Johannes Werner Rieger, Zvonimir Bogdan
  • Patent number: 7299842
    Abstract: A link member for tire chains has a link member body having at least one connecting opening for receiving additional chain members. The link member body has a tire contact part and a wear part, wherein the wear part has lateral studs and at least one central stud. The lateral studs are positioned on opposed sides of the at least one central stud. The at least one central stud projects past the lateral studs in a first and a second transverse directions extending transversely to a longitudinal center plane of the link member body such that the wear part, when viewed in a plan view, is approximately cruciform.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: November 27, 2007
    Assignee: Eisen- und Drahtwerk Erlau AG
    Inventors: Hansjörg Rieger, Zvonimir Bogdan
  • Publication number: 20070029019
    Abstract: A ring member for a tire chain has a ring body having at least one flattened portion deviating from a circular shape at an outer side of the ring member. The tire chain made from such a ring member has also stay members engaging the ring members. The ring members are arranged such that the at least one flattened portion, respectively, extends at least approximately in a longitudinal chain direction.
    Type: Application
    Filed: July 11, 2006
    Publication date: February 8, 2007
    Applicant: EISEN- UND DRAHTWERK ERLAU AG
    Inventors: Hansjorg Rieger, Johannes Rieger, Zvonimir Bogdan
  • Publication number: 20050211356
    Abstract: A link member for tire chains has a link member body having at least one connecting opening for receiving additional chain members. The link member body has a tire contact part and a wear part, wherein the wear part has lateral studs and at least one central stud. The lateral studs are positioned on opposed sides of the at least one central stud. The at least one central stud projects past the lateral studs in a first and a second transverse directions extending transversely to a longitudinal center plane of the link member body such that the wear part, when viewed in a plan view, is approximately cruciform.
    Type: Application
    Filed: March 24, 2005
    Publication date: September 29, 2005
    Applicant: EISEN- UND DRAHTWERK ERLAU AG
    Inventors: Hansjorg Rieger, Zvonimir Bogdan