Inventor
SHUMAKER JOHN F
13 patents
Patents
13 patentsUS4643631AFeb 17, 1987
Quick coupling and release mechanism for buckets
CASE CO J I50 citations92
US4309142AJan 5, 1982
See-through bucket
CASE CO J I31 citations92
US4026428AMay 31, 1977
Stabilizer attachment for material handling implement
CASE CO J I25 citations81
US4411584AOct 25, 1983
Optimized earthworking tool operating linkage
CASE CO J I8 citations73
US4370090AJan 25, 1983
Boom lock
CASE CO J I15 citations73
US4365428ADec 28, 1982
Bucket mounted footing tool
CASE CO J I7 citations73
US4364705ADec 21, 1982
Loader mechanism
CASE CO J I20 citations73
US4360982ANov 30, 1982
Bucket with removable cutting plate
CASE CO J I8 citations73
US4358240ANov 9, 1982
Asymmetric backhoe
CASE CO J I11 citations73
US4344734AAug 17, 1982
Self-leveling bucket linkage
CASE CO J I12 citations73
US4329797AMay 18, 1982
Amplified loader arm
CASE CO J I13 citations73
US4295779AOct 20, 1981
Straight arm loader
CASE CO J I14 citations73
US4018458AApr 19, 1977
Vehicle stabilizer with adjustable foot
CASE CO J I5 citations62