Class 901/24 - Stepper motor

Subclass of Class 901 - Robots
Definition: Subject matter under cross-reference subcollection 23 wherein
No. of patents: 38
Last issue date: 04/10/2001

Number	Title	Issue Date
6212968	SCARA robot Disclosed is a SCARA robot having a robot body, a mount movable vertically of the robot body, a first arm having one end operatively connected to the mount such that the first arm may turningly move in a horizontal plane, a second arm having one end opera...	04/10/2001
6199444	Robot having multi-joint arms movable in horizontal plane Disclosed is a robot having multi-joint arms movable in a horizontal plane, which is mechanically compact as well as small sized and operated with high precision and a minimum output of drive sources, substantially comprising a robot body (1), a cylindric...	03/13/2001
5873685	Press processing method and press processing device The disclosed press processing method and device can chamfer work, for instance by pressing a chamfering tool against the work at a predetermined contact pressure, without detecting the pressing force of the chamfering tool against the work or without fee...	02/23/1999
5796927	Rate mode hand controller with force reflection A rate mode robotic control system in which displacement of a hand-control element from a null position generates a robotic control signal to command acceleration and/or velocity of a controlled element. A force generator urges the hand-control element to...	08/18/1998
5584621	Direct drive multiple axes rotary spindle head for milling machine A gearless, direct drive, multiple axes rotary head for a machine tool is provided which includes a spindle mounted to the rotary head for rotation thereon about multiple axes and a plurality of motors coupled to the head and spindle for directly driving ...	12/17/1996
5341078	Sliding mode control method for a machine having an operating section operatively coupled to a servomotor and wherein a switching variable is determined based on a torsion amount and a torsion speed A sliding mode control method is provided capable of improving the following ability of a control system with respect to a command at the time of change in the operating condition of a machine, and preventing vibration which tends to occur by the action o...	08/23/1994
5155423	Industrial robot with servo A digitally controlled industrial robot comprises a set of unitized and integrated joint drive modules which can be assembled in series to form an arm. The joints are of two basic types, pitch joints and roll joints, with the roll joints providing rotatio...	10/13/1992
5098458	Article transfer mechanism Plural article transfer mechanisms are operated in timed sequence by an electronic control synchronized to a main drive shaft. Each article transfer mechanism transfers articles from a dead plate to a moving conveyor. An extensible-retractable pusher arm ...	03/24/1992
5083896	Object handling device An object handling device successively transfers objects such as semiconductor wafers. The object handling device includes first and second collapsible arm units having hands for holding objects, a first drive shaft for selectively extending and contracti...	01/28/1992
4995782	Apparatus for rotating a wrist of a robot An apparatus for rotating a wrist shaft of a robot comprising an indexing plate which is rotated by a motor through a friction coupling, a roller which is pressed against the indexing plate and which is disengaged from recesses in the indexing plate by an...	02/26/1991
4973215	Industrial robot with servo A digitally controlled industrial robot comprises a set of unitized and integrated joint drive modules which can be assembled in series to form an arm. The joints are of two basic types, pitch joints and roll joints, with the roll joints providing rotatio...	11/27/1990
4955250	Multiple forearm robotic elbow configuration A dual forearmed robotic elbow configuration comprises a main arm having a double elbow from which two coplanar forearms depend, two actuators carried in the double elbow for moving the forearms, and separate, independent end effectors, operated by a cabl...	09/11/1990
4923499	Article transfer mechanism Plural article transfer mechanisms are operated in timed sequence by an electronic control synchronized to a main drive shaft. Each article transfer mechanism transfers articles from a dead plate to a moving conveyor. An extensible-retractable pusher arm ...	05/08/1990
4921393	Articulatable structure with adjustable end-point compliance A manipulator is disclosed which includes first and second interconnected limb sections, the second section of which is elongated and flexible in at least one direction normal to the longitudinal axis. The first limb section is connected to a base, and th...	05/01/1990
4894598	Digital robot control having an improved pulse width modulator A pulse width moduation (PWM) scheme provides for digital implementation of robot control commands. For this purpose, it provides time stabilized current sampling synchronized to the sampling frequency of the position and velocity loops in the robot contr...	01/16/1990
4886529	Polishing robot and polishing method using the same A direct-teaching playback type polishing robot comprising a first arm and a second arm, a polishing tool suspended from a free end of said second arm, horizontal high-lead ball screws having nuts connected to said arms, respectively, and a servo-motor an...	12/12/1989
4730975	Industrial robot In an industrial robot of a type having an arm made of a pentagonally connected links, of which an uppermost link is secured to a stationary member so as to be swingable around its axis, the uppermost link is rotated by a first motor, while second and thi...	03/15/1988
4714400	Plural robotic drive A robotic system includes two joints moving a common load-bearing member along a path for positioning a load. Each joint includes a linear electric motor and a feedback loop, the latter driving the motor accurately in response to a commanded position sign...	12/22/1987
4697472	Multi-articulated robot A multi-articulated robot for providing a plurality of articulations. The robot has a plurality of articulation units, with each unit including a drive and has connecting portions disposed at both ends of the drive for connection with the other articulati...	10/06/1987
4687400	Device for moving objects in a closed container A device for moving objects about the inside of a closed container includes a grasping mechanism for grasping and releasing objects and an operating mechanism for operating the grasping mechanism and for moving the grasping mechanism about the inside of t...	08/18/1987
4638667	Remote probe positioning apparatus Apparatus for positioning a probe carried by an elongated flexible carrier includes a cantilevered telescoping extensible boom. A sprocketed tractor feed mounted at the distal end of the boom engages apertures in the carrier for feeding it and deflecting ...	01/27/1987
4585387	Robot arm A robot arm preferably has at least shoulder, elbow and wrist joints with a lever arm extending between each of the joints. Individually powered modules are buit into each of the lever arms adjacent each joint to control the mutual attitude between the le...	04/29/1986
4543638	Mechanical handling apparatus A mechanical handling apparatus for point to point movement has utilization grippers driven from point to point by an arm assembly comprising a piston and cylinder arrangement in which the piston is in force balance until activated by a microprocessor. Th...	09/24/1985
4505166	Control-in-the-small system for precision, under load control of _robot manipulator A remote manipulator for a robotic system has a plurality of intercoupled manipulator links and a principal manipulator drive unit coupled to manipulate the remote position of an end-effector supported by said links in response to a manipulator control si...	03/19/1985
4424473	Drive apparatus for an industrial robot An industrial robot is disclosed, which utilizes three like drive units for controlling movement about the three primary axes of rotation. Each drive unit comprises a pair of electrical stepping motors, which act through a differential gear train to contr...	01/03/1984
4419041	Spacial mechanism and method A spacial mechanism includes an arm having first and second spaced support points. The first and second support points are supported by first and second swivel bearings. The first and second swivel bearings are supported by first and second rotary element...	12/06/1983
4381237	Sludge robot A sludge robot for the removal of sludge from sedimentation tanks having planar bottoms comprises a rising tube (3) and two tube arms (5, 8) which are interconnected by two motor couplings (1, 2), by means of which the tube arms can be steered along a pre...	04/26/1983
4367998	Manipulators A manipulator consisting of a slave assembly, a master unit, and a control circuit. The movement of the various components of the slave assembly are actuated by electric stepping motors, and the slave assembly itself comprises a pantograph linkage having ...	01/11/1983
4349182	Tape-controlled metal cutting apparatus Apparatus for cutting a metal workpiece including pipe in any desired shape and in a cutting cycle governed by a numerical controller having a plurality of separate output control signal channels. The apparatus is highly versatile and automatically operab...	09/14/1982
4329111	Mechanical manipulator First second and third drive units for a mechanical manipulator are located on a support. An articulated arm assembly extends from the support and includes a first member pivotally connected to a first pivot axis on the support to form part of a first lev...	05/11/1982
4329110	Manipulating device, particularly for industrial robots The invention refers to a manipulating device, particularly for industrial obots, comprising an articulated gripping arm located and extending from a support, of the kind in which the articulated gripping arm comprises a lever system with at least a first,...	05/11/1982
4246661	Digitally-controlled artificial hand An artificial forearm and hand having a fully-articulated wrist motion. The invention provides an integrated digitally-controlled remote manipulator device capable of reproducing all of the major motions of the human forearm, wrist and hand in a cmpact in...	01/27/1981
4218173	Robots A robot comprising a chain of members connected in pairs and mobile with respect to one another under the action of drive device controlled by a computer, each of the members being operative to drive a terminal member of the chain in a movement determined...	08/19/1980
4208619	Automatons An automaton comprising a fixed frame, a horizontal guiding member carried by the frame, a carrier movable along said guiding element, and a gripping member carried by the carriage and movable in a vertical direction relative to the carriage. There is pro...	06/17/1980
4187051	Rotary video article centering, orienting and transfer device for computerized electronic operating systems Mounted upon a servo-motor-driven longitudinally-reciprocable X-axis carriage is a servo-motor-driven laterally-reciprocable Y-axis carriage carrying an air cylinder with a vertically-reciprocable and rotatable piston rod. Mounted atop the piston rod is a...	02/05/1980
4115684	Portable, programmable manipulator apparatus A manipulator apparatus having a manipulator arm movable in a plurality of axes is programmed to perform a desired sequence of operations over a desired path. The programming is accomplished by an operator manually moving the end of the manipulator arm ov...	09/19/1978
3958740	Automatic component assembly machine and method relating thereto A programmable manipulation machine for picking up a succession of small components, such as semiconductor chips, and placing them precisely in predetermined positions on a work-piece, such as a substrate. The machine includes a vacuum chuck assembly whic...	05/25/1976
3934186	Program control system for robots for industrial use A program control unit for industrial robots comprising programming means to check instructions from arm-position memory means in which the arm motions are set by means of an arm-position selecting circuit and generates arm-position setting signals and al...	01/20/1976

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Class 901/24 - Stepper motor