Inventor
SHELDON LOREN B
US8 patents
⚠️ This page may combine multiple inventors who share the name “SHELDON LOREN B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BJ HUGHES INC
6 patentsUS4187546AFeb 5, 1980
Computer-controlled oil drilling rig having drawworks motor and brake control arrangement
BJ HUGHES INC62 citations93
US4139891AFeb 13, 1979
Elevator load control arrangement for a computer-controlled oil drilling rig
BJ HUGHES INC52 citations92
US4128888ADec 5, 1978
Velocity control arrangement for a computer-controlled oil drilling rig
BJ HUGHES INC37 citations92
US4327261AApr 27, 1982
Apparatus for sensing a distended location on a drill pipe
BJ HUGHES INC9 citations72
US4119837AOct 10, 1978
Block position and speed transducer for a computer-controlled oil drilling rig
BJ HUGHES INC12 citations72
US4163401AAug 7, 1979
Electro-hydraulic interface for a power tongs
BJ HUGHES INC6 citations61