Title:
KEYWAY TIE
Document Type and Number:
WIPO Patent Application WO/2019/139765
Kind Code:
A1
Abstract:
A tie having a non-linear keyway under the overlying rail to provide support to restrain lateral and longitudinal movement of the rail. A fastening system to hold rails down on a tie comprises a rail plate that may be fastened to the tie within the keyway. The fasteners are protected to avoid damage in case of a derailment or other adverse conditions. Also disclosed are visual inspection mechanisms to assist with determining whether a fastening system is securely attached to the tie.
Inventors:
MATTSON STEVEN (US)
LESHER SCOTT (US)
LESHER SCOTT (US)
Application Number:
PCT/US2018/066827
Publication Date:
July 18, 2019
Filing Date:
December 20, 2018
Export Citation:
Assignee:
VOESTALPINE NORTRAK INC (US)
VEAE GMBH VOESTALPINE (AU)
VEAE GMBH VOESTALPINE (AU)
International Classes:
E01B3/28; E01B9/02; E01B9/38; E01B9/40
Foreign References:
| DE2554625A1 | 1976-06-24 | |||
| ES2574538A1 | 2016-06-20 | |||
| US0961917A | 1910-06-21 | |||
| JPS51156104U | 1976-12-13 | |||
| DE102015012573A1 | 2017-03-30 | |||
| BE559994A | ||||
| EP1384812A2 | 2004-01-28 | |||
| US9758932B2 | 2017-09-12 | |||
| US2276799A | 1942-03-17 | |||
| US0715698A | 1902-12-09 | |||
| GB1169715A | 1969-11-05 | |||
| US2242773A | 1941-05-20 | |||
| US4108378A | 1978-08-22 | |||
| US3957201A | 1976-05-18 | |||
| US4925094A | 1990-05-15 | |||
| US8625878B2 | 2014-01-07 | |||
| US9441956B2 | 2016-09-13 | |||
| US20120192756A1 | 2012-08-02 |
Attorney, Agent or Firm:
JONES, Darren, J. (US)
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