The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 01, 1988
Filed:
Jun. 01, 1981
Applicant:
Inventors:
Assignees:
Schwihag, Gesellschaft fur Eisenbahnoberbau mbH, Tagerwilen, CH;
Firma Karl Richtberg KG, Rein, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E01B / ;
U.S. Cl.
CPC ...
238303 ; 238302 ; 238284 ; 238382 ; 411155 ; 211 86 ;
Abstract
Apparatus for fastening rails on ties of a railroad comprising four rail screws for flushly mounting an abutment face of a bedplate against the upper surface of the tie and a pre-stressed, elastically deformable bedplate having a convex curved abutment face for frictionally engaging the upper surface of the tie and for applying a spring force against the rail screws when the rail screws are used to brace the curved abutment face flush against the tie.