Inventor
CARLSTEDT RICHARD A
US12 patents
⚠️ This page may combine multiple inventors who share the name “CARLSTEDT RICHARD A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MINER ENTERPRISES
10 patentsUS5351844AOct 4, 1994
Elastomeric spring unit
MINER ENTERPRISES101 citations95
US6488162B1Dec 3, 2002
Draft gear for a reduced-slack drawbar assembly
MINER ENTERPRISES38 citations92
US6478173B2Nov 12, 2002
Railroad car draft gear having a long travel
MINER ENTERPRISES55 citations92
US4960215AOct 2, 1990
Friction elastomer draft gear
MINER ENTERPRISES53 citations92
US4735328AApr 5, 1988
Split wedge draft gear with center friction plate
MINER ENTERPRISES31 citations92
US7624884B2Dec 1, 2009
Railroad car draft gear
MINER ENTERPRISES27 citations87
US4576295AMar 18, 1986
Draft gear for railroad car coupler system
MINER ENTERPRISES22 citations81
US4556149ADec 3, 1985
Draft gear
MINER ENTERPRISES9 citations73
US8365930B2Feb 5, 2013
Railcar draft gear spring assembly and method of making an elastomeric spring unit
MINER ENTERPRISES5 citations72
US5065874ANov 19, 1991
Preshortening insert for a draft gear
MINER ENTERPRISES3 citations53