Assignee
PRECISION HANDLING DEVICES
23 patents
Top patents by PatentIndex Score
US4129239ADec 12, 1978
Clamping devices for document tractors
PRECISION HANDLING DEVICES57 citations93
US5692597ADec 2, 1997
Conveyor belt assembly
PRECISION HANDLING DEVICES38 citations92
US5336011AAug 9, 1994
Storage cap with spring biased female threads
PRECISION HANDLING DEVICES20 citations86
US5027993AJul 2, 1991
Perforated paper feed apparatus with an optical system for detecting the presence and/or motion of the paper
PRECISION HANDLING DEVICES20 citations82
US4614508ASep 30, 1986
Drive mechanism especially for web feed tractors
PRECISION HANDLING DEVICES27 citations80
US4199091AApr 22, 1980
Document tractor
PRECISION HANDLING DEVICES27 citations79
US5346060ASep 13, 1994
Link assemblies which are interconnected to provide a self-tensioning conveyor belt
PRECISION HANDLING DEVICES18 citations73
US5284285AFeb 8, 1994
Bearing assembly and web feed device incorporating same
PRECISION HANDLING DEVICES16 citations73
US4421261ADec 20, 1983
Web feed tractor
PRECISION HANDLING DEVICES10 citations71
US5409316AApr 25, 1995
Crossed roller bearing
PRECISION HANDLING DEVICES10 citations70
US4616773AOct 14, 1986
Forms feeding apparatus
PRECISION HANDLING DEVICES20 citations70
US4423969AJan 3, 1984
Print head
PRECISION HANDLING DEVICES15 citations69
US4611737ASep 16, 1986
Tractor apparatus
PRECISION HANDLING DEVICES9 citations68
US5357832AOct 25, 1994
Web feed apparatus with margin cutter
PRECISION HANDLING DEVICES5 citations62
US5139190AAug 18, 1992
Document feed tractor with height adjustable web support surface
PRECISION HANDLING DEVICES4 citations62
US4989771AFeb 5, 1991
Forms feeding apparatus
PRECISION HANDLING DEVICES5 citations62
US4955520ASep 11, 1990
Web feed device having an improved lid mechanism
PRECISION HANDLING DEVICES3 citations62
US4765523AAug 23, 1988
Multiposition tractor lid
PRECISION HANDLING DEVICES5 citations62
US4714185ADec 22, 1987
Perforated web feeding apparatus
PRECISION HANDLING DEVICES2 citations60
US4706861ANov 17, 1987
Perforated web feeding apparatus
PRECISION HANDLING DEVICES5 citations59
US5005779AApr 9, 1991
System for dispensing a continuous web from a roll on which the web is wound
PRECISION HANDLING DEVICES1 citations52
US4964556AOct 23, 1990
Forms feed tractor with lid which facilitates forms alignment
PRECISION HANDLING DEVICES1 citations52
US4697727AOct 6, 1987
Document feed tractor
PRECISION HANDLING DEVICES5 citations46