Patents by Inventor Erhard Weidler
Erhard Weidler 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).
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Patent number: 6889734Abstract: A wheel chain has a running lattice structure which is tightened by a pressure cord (8). The pressure cord (8) is connected to a lateral lattice structure arranged on the outer side of the vehicle tires by connecting members (6). Each of the connecting members has a connecting loop (10) for a member of the lateral lattice structure, and a guiding ring (9) for the pressure cord (8). In order to preserve an excess length (7) of the pressure cord (8), the cross-section of the connecting loop (10) is sufficiently large so that the connecting loop (10) provides a pull-through conduit for the excess length (7) of the pressure cord (8).Type: GrantFiled: January 28, 2002Date of Patent: May 10, 2005Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.Inventors: Werner Deger, Erhard Weidler
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Publication number: 20040045648Abstract: A wheel chain has a running lattice structure which is tightened by a pressure cord (8). The pressure cord (8) is connected to a lateral lattice structure arranged on the outer side of the vehicle tires by connecting members (6). Each of the connecting members has a connecting loop (10) for a member of the lateral lattice structure, and a guiding ring (9) for the pressure cord (8). In order to preserve an excess length (7) of the pressure cord (8), the cross-section of the connecting loop (10) is sufficiently large so that the connecting loop (10) provides a pull-through conduit for the excess length (7) of the pressure cord (8).Type: ApplicationFiled: June 11, 2003Publication date: March 11, 2004Inventors: Werner Deger, Erhard Weidler
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Patent number: 4947912Abstract: In a preferably edge-hardened or case-hardened stud link for tire chains, to increase the link surface a plurality of troughs (10) which are open on only two sides is arranged on the side faces (8, 9) of the ground-facing link part (1). The troughs (10) arranged in the region of the side faces (8, 9) can be supplemented by troughs (13) designed to resemble blind holes, which are arranged in the region of the contact face (11) and are open on only one side and which form chambers for receiving highly abrasive rock grains exerting a wear-inhibiting effect.Type: GrantFiled: June 6, 1988Date of Patent: August 14, 1990Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH U. Co.Inventor: Erhard A. Weidler
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Patent number: 4649977Abstract: In a tire chain, at least one junction point has a horizontal link having the form of a shackle with a main part and with outward-directed ends adjoining this. The hardness of the main part is greater than the hardness of the ends facing one another, these being joined to one another by means of a connecting part which is mushroom-shaped. The connecting part in turn has a hardened head and a hardened foot which are connected to one another via a soft shank.Type: GrantFiled: March 13, 1985Date of Patent: March 17, 1987Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.Inventor: Erhard A. Weidler
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Patent number: 4481990Abstract: In a tire protection and/or skid protection for vehicle tires the tread of the tire is provided with recesses, which are to receive tire protectors or skid protectors. These protectors are retained in the recesses by means of retaining strands mounted in grooves of the tire tread. The retaining strands are connected to lateral chains or parts of lateral chain networks respectively which come to bear against the side walls of the vehicle tire, there being at least one tensioning device for tensioning the lateral chains or chain networks.Type: GrantFiled: August 22, 1979Date of Patent: November 13, 1984Assignee: RUD-Kettenfabrik Rieger & Dietz Gmbh u. Co.Inventors: Hansjorg W. Rieger, Erhard A. Weidler
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Patent number: 4391313Abstract: At the nodal points of the chain net in a tire chain, components (1) are provided which have at least one T-shaped section, the transverse bar (3,4) of which forms holding arms (5) for chain links (6) to be hung in; in these components, the ends, forming locking pins (9), of a closure element (8) mounted in a bore (7) in the middle of the longitudinal bar of the T-shaped section serve to secure the chain links (6) hung into the hook-shaped holding arms (5) (FIG. 1).Type: GrantFiled: September 9, 1982Date of Patent: July 5, 1983Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.Inventor: Erhard A. Weidler
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Patent number: 4352382Abstract: In a tire protection chain with plate-shaped components (1) which cover the tread of the tire to be protected, and with at least one chain network (4) located on one side of the tire, the chain network is provided with overload safeguards (7, 8, 9, 14, 18, 22) which form a parting position when the chain network is subjected to extremely high loadings. The overload safeguards are here designed in such a way that no parts can be released and thrown off when the chain network is overloaded.Type: GrantFiled: July 16, 1980Date of Patent: October 5, 1982Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.Inventor: Erhard A. Weidler
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Patent number: 4321955Abstract: A tire protector device with a covering, especially formed by plates, which exhibits at its ends next to the outside of the tire connector parts for fastening a chain net which covers the side wall of the tire. The edge of said chain net remote from the connector parts being connected to a holding strand via connection parts which are formed of tension devices which have at least one tension spring forming a store of tensional force and/or which exhibits each a connector member carried movably on the holding strand.Type: GrantFiled: October 15, 1979Date of Patent: March 30, 1982Assignee: RUD-Kettenfabrik Rieger & Dietz GmbH u. Co.Inventors: Hansjorg Rieger, Erhard Weidler
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Patent number: 4306605Abstract: A connector for chains, particularly tire chains, comprises a substantially C-shaped main body (1) whose free arms (3,4) define an insertion gap (5). In a position lying opposite the insertion gap (5) the yoke portion (2) of the main body (1) has roof shaped surfaces (11,12) the apex line of which is intersected by the axis of a stepped bore (6) for receiving a retaining pin (7,14,19) and extends at a right angle to the place of the arms (3,4) and the yoke portion (2). The retaining pin (7,14,19) has an annular flange (8) and is held in its retaining position by means of at least one securing element (10) which is seated in a bore (9,17,18) intersecting the stepped bore (6).Type: GrantFiled: January 23, 1980Date of Patent: December 22, 1981Inventors: Erhard A. Weidler, Manfred Styrnol
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Patent number: 4267871Abstract: A tire protector chain comprises plate-shaped components (1) which cover the tread of the tire and further comprises on at least one side of the tire a chain net connected to said components (1) by means of connection devices (4;15;24;28;34). The connection devices (4;15;24;28;34) being in the form of overload protection means which under the action of critical external forces free the chain net, or parts thereof, before the breaking strength of the chain links (14) is reached, in such a manner that no fragments of chain links (14) or of the connection devices (4;15;24;28;34) are released.Type: GrantFiled: January 23, 1980Date of Patent: May 19, 1981Inventor: Erhard A. Weidler
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Patent number: 4215733Abstract: A tire protector device with a covering, especially formed by plates, which exhibits at its ends next to the outside of the tire connector parts for fastening a chain net which covers the side wall of the tire. The edge of said chain net remote from the connector parts being connected to a holding strand via connection parts which are formed of tension devices which have at least one tension spring forming a store of tensional force and/or which exhibit each a connector member carried movably on the holding strand.Type: GrantFiled: November 2, 1977Date of Patent: August 5, 1980Inventors: Hansjorg Rieger, Erhard Weidler
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Patent number: 4147023Abstract: A chain net with at least one nodal point formed by a horizontally arranged chain lock and at least three vertical links connected to each other by a C-shaped basic body of the chain lock, which is closed by a locking element, at least one end of which forms a stop for a horizontal link, the basic body being provided with further stops preventing the vertical links from moving into the area of the locking element.Type: GrantFiled: December 9, 1977Date of Patent: April 3, 1979Inventor: Erhard A. Weidler