Patent · US Active

Railroad tie of non-homogeneous cross section useful in environments deleterious to timber

US8430334B1 · kind B1 · utility

0Cited by

60References

20Claims

0Family size

Inventors

Jonathan Jaffe · Gallatin, US
Scott E. Powers · Fayetteville, US

Key dates

Filing date	Apr 6, 2011
Grant date	Apr 30, 2013
Priority date	—
Expiry date	Jan 4, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE01B3/46
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

The disclosure provides a railroad tie including a core, a first sleeve encapsulating the core and a second sleeve encapsulating the first sleeve. The first sleeve includes fingers running parallel to a long axis of the core along a top surface and fingers running perpendicular to a long axis of the tie along elongated sides of the first sleeve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.