Inventor
PURCELL ROBERT J
22 patents
⚠️ This page may combine multiple inventors who share the name “PURCELL ROBERT J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CATERPILLAR INC
14 patentsUS4881609ANov 21, 1989
Suspension mechanism for a track-type vehicle
CATERPILLAR INC60 citations94
US4819999AApr 11, 1989
End face seal assembly
CATERPILLAR INC77 citations94
US5334106AAug 2, 1994
Hydraulic recoil and belt tension control system
CATERPILLAR INC30 citations92
US4923257AMay 8, 1990
Belted vehicle suspension system
CATERPILLAR INC52 citations92
US4817746AApr 4, 1989
Suspension mechanism for a track-type vehicle
CATERPILLAR INC39 citations92
US4967850ANov 6, 1990
Combined tooth retractor and blade latching mechanism
CATERPILLAR INC48 citations91
US4874052AOct 17, 1989
Suspension system for a vehicle
CATERPILLAR INC41 citations91
US4819754AApr 11, 1989
Multiple mode vehicle suspension system
CATERPILLAR INC24 citations91
US4854650AAug 8, 1989
Track recoil and tensioning mechanism
CATERPILLAR INC23 citations78
US5462345AOct 31, 1995
Resilient wheels with reinforcing rings
CATERPILLAR INC8 citations74
US5433515AJul 18, 1995
Guide rollers for flexible drive belt
CATERPILLAR INC11 citations74
US5191951AMar 9, 1993
Belted undercarriage assembly
CATERPILLAR INC19 citations71
US5484248AJan 16, 1996
Endless track transporter for semi-trailers
CATERPILLAR INC3 citations63
US4896586AJan 30, 1990
Piston stop assembly
CATERPILLAR INC3 citations63
CATERPILLAR TRACTOR CO
6 patentsUS4111064ASep 5, 1978
Sprocket segments providing greater retention capabilities
CATERPILLAR TRACTOR CO32 citations92
US4116081ASep 26, 1978
Sprocket profile
CATERPILLAR TRACTOR CO49 citations89
US4230378AOct 28, 1980
Resilient support pad for crawler type vehicles
CATERPILLAR TRACTOR CO20 citations82
US4159857AJul 3, 1979
Track assembly with mid-pitch drive lug and replaceable rail
CATERPILLAR TRACTOR CO23 citations82
US4290236ASep 22, 1981
Method and apparatus for manufacturing a contoured internal diameter bushing
CATERPILLAR TRACTOR CO14 citations73
US3982598ASep 28, 1976
Multidirectional resilient suspension for vehicles
CATERPILLAR TRACTOR CO11 citations70