SCREW DOWEL FOR FASTENING RAILS

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20130228634A1
SERIAL NO

13825147

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Screw dowel for concreting into a railway sleeper or ballastless track and frictionally connecting to a sleeper screw, containing a threaded portion (14) with external thread flights (18) arranged on the outside of the screw dowel (10) and with internal thread flights (19) arranged on the inside of the screw dowel; and an upper subportion (16) without external thread that is situated close to the dowel opening (26) in the installed state; the screw dowel containing two constituent parts made of different materials, namely a basic body made of plastic and a cylindrical ring (20) made of a steel material and mounted with a form fit and/or force fit.

First Claim

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Patent Owner(s)

Patent OwnerAddress
VOSSLOH WERKE GMBHD-58791 WERDOHL

International Classification(s)

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  • 2011 Application Filing Year
  • E01B Class
  • 100 Applications Filed
  • 78 Patents Issued To-Date
  • 78 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20112012201320142015201620172018201920200255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bosterling, Winfried Neuenrade, DE 12 47
Bressel, Dierk Iserlohn, DE 3 21
Harrass, Michael Wuppertal, DE 4 6

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Patent Citation Ranking

  • 3 Citation Count
  • E01B Class
  • 16.07 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges942501 - 1011 - 2002.557.51012.51517.52022.52527.53032.53537.54042.545

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