Patents for F16H 25 - Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms (11,986)
02/1994
02/03/1994DE4225523A1 Helical drive, esp. of recirculating ball type, for machine tool - has nut for rotating shaft held within part to be moved by bush under hydraulic pressure
02/03/1994DE4225040A1 Rolling ring threaded drive - has multi-threaded spindle engaging inner rings which hold balls engaging with outer rings
02/01/1994US5282392 Synchro-clutching screw-and-nut mechanism
01/1994
01/20/1994DE4223582A1 Linear drive for long stretches on machine tools - has rotatable toothed rod spindle for rolling engagement on rotating worm to support and linearly guide same for play-free transfer of movement
01/20/1994DE4223074A1 Rotary power transmission mechanism - consists of threaded bolt with lesser pitch coupled to another bolt of higher pitch thread in common sleeve
01/18/1994US5279178 Two dimensional drive system
01/18/1994US5279175 Ball screw integrated type linear movement guiding unit
01/13/1994DE4322540A1 Ball lead-screw drive transmission with overload protection - provided by mechanical switch element triggered at set load point to shut down drive
01/13/1994DE4222365A1 Actuator element for door lock of vehicle central locking - has linear element displaced by electric motor via gear and lead-screw with limit switch to signal on=off states
01/05/1994EP0577541A1 Linear actuator
01/05/1994EP0577462A1 Ball screw mounting device ensuring the operation of the closure shelves of a freeze drying chamber
01/05/1994DE4219660A1 High torque drive for pivot action - has inclined gear drives with planetary reduction drive
01/04/1994US5275116 Cam and wobble follower looper drive for sewing machine
12/1993
12/29/1993EP0575602A1 Rotary hopper transfer mechanism.
12/29/1993EP0575561A1 Speed converter.
12/29/1993EP0575343A1 Device for performing a two-stage linear movement.
12/28/1993US5273381 Ball screw guide unit and transporting table using the same
12/28/1993US5273011 Arrangement for converting linear motion from a power source to a rotary motion
12/22/1993CN1079807A Improved revolving plate clamping device
12/07/1993US5267920 Friction roller type continuously variable transmission
12/07/1993US5267521 Pattern generator mechanism for zig-zag sewing machine
12/02/1993DE4317956A1 Drive mechanism for vehicle steering wheel adjustment - has nut threaded to shaft of one element and fixed to other element with pressure system providing keyed operation
12/02/1993DE4230019C1 Recirculating ball bearing drive with spiral feed - has main bearing block slit for bearing adjustment with slit terminated short of edge of block
11/1993
11/23/1993US5263381 Ball screw
11/18/1993EP0569775A1 Spindle drive with quick release drive spindle
11/18/1993EP0569595A1 Feed screw device and precisely positioning micromotion feed system
11/17/1993CN1022775C Double-screw automatic force-boosting mechanism
11/11/1993WO1993022195A1 Fault-tolerant linear electromechanical actuator
11/11/1993DE4215311A1 End position switch for electric door drive - is supported by snap fitted frame of two end plates and two connecting bars
11/11/1993DE4215257A1 Pneumatic rotary drive for vehicle swivel doors - has circulating ball guide slots with narrowed central sections to reduce friction forces
11/10/1993EP0569275A1 Resilient joint with axial displacement in a fixed manner and suspension with such a joint
10/1993
10/28/1993WO1993021455A1 Advanced rotary plate clamping device
10/26/1993US5255882 Setting device with a nut controllable by a spindle
10/14/1993DE4202755A1 Multispeed screw drive mechanism - has splines on rotating shaft engaging planetary gears driving rotating nut
10/13/1993EP0565045A1 Selectively controllable inflation-deflation device adapted for use in angioplasty procedures
10/13/1993EP0564604A1 Two-speed linear actuator driven by two motors.
10/13/1993CN1077259A Double-acting dynamic back clearance-eliminating driving system
10/12/1993US5252015 Adjustable pre-load screw and nut assembly
10/12/1993US5251501 Intermediate support device for screw shaft
10/12/1993US5251365 Method for making ball screw nut
10/08/1993CA2093465A1 Selectively controllable inflation-deflation device adapted for use in angioplasty procedures
10/06/1993EP0563512A1 Ball nut screw assembly
09/1993
09/30/1993WO1993019309A1 An actuator assembly in handle-bar
09/30/1993WO1993019308A1 Continuously variable transmission system
09/30/1993WO1993018938A1 Angular adjustment mechanism
09/29/1993EP0562362A1 Drive apparatus and drive XY apparatus on which it is equipped
09/29/1993CN1022262C Concentric wheel
09/28/1993US5247846 Quick disconnectable screw device
09/23/1993DE4209766C1 Mechanism for converting rotary movement to axial - has rotary nut for screwed spindle with internal recirculatory-ball system and forming peripheral plain bearing with housing
09/23/1993DE4204304A1 Spindle nut with axial bore and thread interacting with spindle thread - has axially flexible centre portion between two end parts, not engaging spindle thread.
09/22/1993EP0448699B1 Step-by-step driving mechanism
09/21/1993US5245886 Rotary temperature mechanism
09/21/1993US5245884 Ball screw mechanism
09/21/1993CA1322344C Driving device
09/15/1993EP0560293A2 Device for guiding a carriage driven by a spindle
09/08/1993EP0559441A1 Workcentre
09/07/1993US5241874 Ball screw
09/02/1993DE4306087A1 Cantilever spindle mechanism with vibration-damping device - is protected against loss of damping capability by helical groove in annulus which traps any lubricant leaking into clearance hole
09/01/1993EP0557766A1 Adjusting drive for an axially adjustable steering column in motor vehicle
08/1993
08/31/1993US5239882 Screw-nut device of rolling bearing type with adjustable clearance or preload
08/25/1993EP0556817A1 Robotised arm
08/12/1993DE4201206A1 Linear spindle drive for parallel-guided pivotable elements - has tubular space in lower shell of housing for paraxial retention of motor driving worm gear for rotation of spindle
08/10/1993US5234314 Rotary hopper transfer mechanism
08/05/1993DE4202510A1 Machine tool feed unit lead-screw with internal cooling - is hollow with coolant flowing along bearing mounted inner tube and back along space between tube and wall to bearing mounted outlet collar
08/04/1993EP0553577A1 Toilet flushing control device with regulatable water volume necessary to clean the bowl properly
08/03/1993US5231888 Ball screw device with internal motors
08/03/1993US5231887 Device in a force actuator
07/1993
07/29/1993DE4225845C1 Electrical telescopic screw as lifting jack for motor vehicle roof flap - has threaded parts screwable into each other operated against each other by electric motor arranged inside telescopic jack
07/28/1993EP0552488A1 Methods of making recirculating ball nut and splined shaft and screw assemblies
07/28/1993EP0552464A1 Screw actuator
07/28/1993EP0552411A1 Portable waste holding tank with improved inlet valve assembly
07/22/1993WO1993014011A1 Rotary hopper transfer mechanism
07/20/1993US5228353 Ball screw device
07/14/1993EP0551197A1 Electrically powered actuator
07/10/1993CA2084618A1 Electrically powered actuator
07/08/1993WO1993013336A1 Drive conversion
07/08/1993DE4300254A1 Ball-screw device for robotic machine tool - performs synchronous rotation of ball-screw and ball-wedge nuts driving shaft when clutch is engaged
07/07/1993EP0549790A1 Method and device for conversion of reciprocating motion into unidirectional rotary motion
07/07/1993EP0402421B1 Electrically operated disc brakes
07/06/1993US5225938 Guide apparatus of cam ring
07/06/1993US5224390 Direction reversing actuator apparatus
07/01/1993DE4143020A1 Spindle drive assembly - spindle nut consisting of collars on shaft, has two part housing controlling play
07/01/1993DE4142099A1 Bush-shaped drive element, esp. for fine mechanical drives, - contains flexible bush section between two threaded nuts
06/1993
06/30/1993CN1073753A Digital-control full-electric operating extensible actuating cylinder
06/24/1993WO1993011910A1 Power tool
06/22/1993CA1319329C Electrically operated disc brakes
06/17/1993DE4141460A1 Pressure driven ram with piston and tubular piston rod - has sliding screw-bush placed axially beside ball-screw-bush, connected together by clutch pins
06/15/1993CA1319032C System to convert rotary motion to linear motion
06/01/1993US5214972 Fault-tolerant linear electromechanical actuator
06/01/1993US5214971 Angular adjustment mechanism
05/1993
05/27/1993WO1993009911A1 Feed screw device and precisely positioning micromotion feed system
05/26/1993CN2134542Y No-clearance thread cover
05/25/1993CA1318155C Apparatus for converting a rotational movement into a reciprocating, linear lifting movement and vice versa
05/18/1993CA1317795C Linear actuator
05/12/1993EP0540607A1 A method and a device in spindles
05/12/1993EP0540510A1 Micromechanic manipulator.
05/12/1993CN2132877Y Electric push arm
05/12/1993CN1072004A Arrangement for converting linear motion from power source to rotory motion
05/05/1993EP0540490A1 An arrangement for converting linear motion from a power source to a rotary motion
04/1993
04/29/1993DE4210927C1 Spring energy storage unit - produces linear pulling or pushing force in event of failure of hydraulically operated mechanical system, e.g. vehicle braking system