Railway sleeper
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 20, 1980
Grant Date -
N/A
app pub date -
Apr 4, 1978
filing date -
Apr 7, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A railway sleeper component and a sleeper made from two such components joined by a gauge bar. The sleeper components being characterized by a top and a base joined by hollow columns with webs between the columns. Each component including means whereby a rail may be mounted on the top of the column together with an end of the gauge bar. The columns are hollow and are open at the base and at or near the top to permit grout to be admitted at the top to flow through the base and into the rail bed ballast to bind the components to the road bed.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully