Inventor
SPRAINIS RONALD J
US13 patents
⚠️ This page may combine multiple inventors who share the name “SPRAINIS RONALD J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SPRAINIS RONALD J
10 patentsUS8136683B2Mar 20, 2012
Combination yoke and elastomeric draft gear
SPRAINIS RONALD J9 citations91
US8336209B2Dec 25, 2012
Method of making compressible elastomeric spring
SPRAINIS RONALD J7 citations83
US8096432B2Jan 17, 2012
Elastomeric draft gear having a housing
SPRAINIS RONALD J8 citations83
US8672151B2Mar 18, 2014
Elastomeric draft gear for a railcar
SPRAINIS RONALD J9 citations79
US8465009B2Jun 18, 2013
Elastomeric pad for a compressible elastomeric spring
SPRAINIS RONALD J4 citations73
US9562582B2Feb 7, 2017
Compressible elastomeric spring
SPRAINIS RONALD J5 citations71
US8783670B2Jul 22, 2014
Compressible elastomeric spring
SPRAINIS RONALD J2 citations62
US8701290B2Apr 22, 2014
Method of making compressible elastomeric spring
SPRAINIS RONALD J2 citations62
US8096431B2Jan 17, 2012
Combination yoke and elastomeric draft gear having a friction mechanism
SPRAINIS RONALD J2 citations61
US8528483B2Sep 10, 2013
Constant contact side bearing assembly with improved heat dissipation for a railcar
SPRAINIS RONALD J2 citations55