TIM A JUR
Engineers in Columbia, SC

License number
Virginia 0402023723
Issued Date
Dec 3, 1992
Expiration Date
Dec 31, 2018
Category
Professional Engineer License
Type
Professional Engineer
Address
Address
Columbia, SC

Professional information

Tim Jur Photo 1

Method Of Filling Spike Holes In Railway Ties

US Patent:
4295259, Oct 20, 1981
Filed:
Oct 13, 1978
Appl. No.:
5/951132
Inventors:
Curtis A. Rhodes - Columbia SC
Tim A. Jur - Columbia SC
Donald A. Keating - Columbia SC
Assignee:
Canron Corp. - Columbia SC
International Classification:
B23P 700
US Classification:
2940218
Abstract:
A method of re-using wooden railroad ties in which the old spike holes are filled with a high density rigid polyurethane foam injected into the holes. The foam serves as a plug which prevents or retards deterioration of the tie at the hole site primarily by preventing or mitigating ingress of moisture. Additionally, the foam serves to anchor a new spike if by chance the same hole location is used when re-spiking the tie. The foam has good retention properties even if the spike is driven in before the foam has fully set.