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| Number | Title | Issue Date |
| 7357065 | Compound linear motion and rotary actuator To eliminate necessity for rotating a rotation drive mechanism against frictional resistance originated by a sealing portion of a piston when an output shaft is rotated in a component linear motion and rotary actuator. An inside cylinder tube is concentrically provi... | 04/15/2008 |
| 7191696 | Rotary actuator assembly A rotary actuator assembly is provided. The assembly has a flexible member that is attached to a piston for linear movement. The flexible member is also attached to a pinion for pivotable movement. ... | 03/20/2007 |
| 7111834 | Swing-arm clamp A swing-arm clamp is provided. The swing-arm clamp has a piston rod which is disposed therein. The piston rod is movable through the swing-arm clamp in response to movement by the piston along a longitudinal axis between first and second positions. The clamp also ha... | 09/26/2006 |
| 6543686 | Identification card and billing process with an identification card A method and apparatus for billing connections of a subscriber identified by a SIM card in a telecommunications network to the subscriber user, including determining the duration and time of the connection using a time-measuring device integrated into the... | 04/08/2003 |
| 6477835 | Single-motor injection-and-screw drive hybrid actuator An improved device (10) for moving a load (11) rotationally and/or axially relative to a body (12) broadly comprises: a body; a motor (13) mounted on the body and having an output shaft (14) operatively arranged to move the load rotationally relative to t... | 11/12/2002 |
| 6397727 | Actuator for pivot chuck A pivot-chuck actuator has a housing extending along an axis, a piston chamber centered on the axis, and a vane chamber offset and separate from the piston chamber. A piston is axially displaceable in the piston chamber and axially fixed to a shaft extend... | 06/04/2002 |
| 6312238 | Hydraulically retractable hydraulic motor A method and apparatus for hydraulically engaging and disengaging a hydraulic motor comprising a rotor and a stator.... | 11/06/2001 |
| 6068810 | Injection molding machine A plasticizing unit having a plasticizing screw, an injection piston connected to the screw, a quill connected to the piston, and hydraulic cavity formed by the piston and a quill end face. Hydraulic fluid is transferred to the hydraulic cavity to move th... | 05/30/2000 |
| 5845540 | Robotic manipulator A pair of connected joints is provided in a master-slave robotic system each operated by a plurality of force imparting means. Such force imparting means for the second joint supported on a member controlled by the first joint imparts force to a member co... | 12/08/1998 |
| 5727445 | Actuator cylinder with mechanism to reduce stiction A linear actuator cylinder reduces the stiction otherwise present during initiation of rod extension or retraction. The actuator cylinder includes a cylinder assembly having a piston that slides longitudinally through a cylinder barrel. A rod is connected... | 03/17/1998 |
| 5570769 | Linear and rotary actuator combination A rotary actuator and a linear actuator are combined to provide an output shaft with independent linear and rotary motion. The linear actuator causes the rotary actuator to move linearly, and there is a guide which restricts the movement of the rotary act... | 11/05/1996 |
| 5540495 | Injection assembly for an injection molding machine The extruder screw drive has a first and a second motor, a screw mechanism connected to the first motor and to the extruder screw for translating it in the extrusion cylinder, and a slide mechanism connected to the second motor and to the extruder screw f... | 07/30/1996 |
| 5410944 | Telescoping robot arm with spherical joints A telescoping robot arm with singularity-free three degrees of motion freedom spherical joints is disclosed. The telescoping section and spherical joints are hydraulically operated to achieve a high power-to-weight ratio and use conventional seals of the ... | 05/02/1995 |
| 5406877 | Steering/lifting appliance A steering/lifting appliance (10) for a hydraulic or pneumatic axle compensation appliance configured as a two-circuit system, having a first external jacket tube (12), a second jacket tube (15) inserted in a pressure-tight manner in the first jacket tube... | 04/18/1995 |
| 5404983 | Turn-act multiaction device A multi directional actuator capable of moving a shaft in at least two directions independently including one linear and one rotary movement. A base plate is provided to receive a first actuator having a linearly moving shaft which is extended from and re... | 04/11/1995 |
| 5367943 | Rotary-linear unit A rotary-linear unit from whose front end the operative section of a output drive part projects. This output drive part is drivingly connected both with a linear drive and with an oscillating vane motor. The oscillating vane motor is associated with the r... | 11/29/1994 |
| 5099749 | Compound motion fluid actuating device and method A rotary/linear fluid actuator includes a cylinder closed at one end by a rotary actuator and at its other end by a forward housing. A piston is disposed in the cylinder. A hollow piston rod, the forward end of which is closed, extends out of the cylinder... | 03/31/1992 |
| 5060539 | Pneumatic stepper motor actuator A pneumatic stepper motor weight actuator captures the advantages of polymeric harmonic gears while occupying less space and eliminating the problems associated with air entrapment in the stator grooves. Air entrapment is eliminated by providing orificed ... | 10/29/1991 |
| 5027667 | Spring actuator with rollers An actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a set of rollers in rolling engagement with the body and output shaft grooves, and a piston sleeve axially movable within the body and retaining the ro... | 07/02/1991 |
| 4987825 | Actuator with fluid transfer tubes A fluid-powered actuator for selectively rotating and linearly moving an external device with two fluid ports to communicate pressurized fluid thereto for its operation. The actuator includes a body having a rotatable shaft extending therewithin. The shaf... | 01/29/1991 |
| 4881419 | Fluid-power bearing actuator A fluid-powered rotary actuated support for a platform, having a body with a vertical axial orientation during use. A drive member has a drive shaft extending coaxially within the body and a flange attached to an end portion of the shaft toward an upper b... | 11/21/1989 |
| 4846007 | Fluid-power device using axially offset rollers A fluid-powered device having a body with interior helical grooves, an output shaft with exterior helical grooves, a plurality of rollers having circumferential grooves, and an axially reciprocating piston sleeve mounted within the body and retaining the ... | 07/11/1989 |
| 4838103 | Fluid-power device with rollers A fluid-powered actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a first set of rollers in rolling engagement with only the body grooves and axially skewed at an angle corresponding to the lead angle of ... | 06/13/1989 |
| 4824255 | Drive apparatus for a screw injection molding unit and a process for its operation A drive apparatus useful in screw injection molding apparatus is disclosed. The apparatus is particularly useful when both axial and rotational movements are required because the invention discloses a construction that reduces the wear attributed to seali... | 04/25/1989 |
| 4745847 | Helical splined rotary actuator Helical splined rotary actuator includes a pair of cylinder housings having inboard ends rotatably mounted in coaxial alignment on opposite ends of a center sleeve member. Contained within the housings are pistons having relatively large diameter helical ... | 05/24/1988 |
| 4741250 | Fluid-power device using rollers A fluid-powered device having a body with interior helical grooves, an output shaft with exterior helical grooves, a plurality of rollers having circumferential grooves, and an axially receiprocating piston sleeve mounted within the body and retaining the... | 05/03/1988 |
| 4665558 | Fluid-operated, linear-rotary, robot-like, actuator This is a fluid-operated linear-rotary robot-like actuator reconstructed from a standard fluid cylinder device. The solid piston of the standard cylinder device is replaced with a self-contained vane-operated piston structure formed of spaced piston parts... | 05/12/1987 |
| 4657474 | Moving means for use in a glassware manufacturing machine The moving means is for use in moving an operative member between an out-of-the-way position and an operative position by a movement having a linear component in a vertical direction and a rotary component about a vertical axis. A first shaft on which the... | 04/14/1987 |
| 4648467 | Pressure fluid operated percussion drilling machine provided with a rotation mechanism Pressure fluid operated percussion drilling machine comprising a frame (1) forming a cylinder space (2) for an axially movable percussion piston (3). The frame is provided with channels (4,7) connectable to a pressure fluid source (5) and to a pressure fl... | 03/10/1987 |
| 4641725 | Wide dynamic range hydraulic vibrator An apparatus for incremental cylinder length control in a hydraulic vibrator of the type having a reaction mass with a cylinder bore disposed therein, first and second end sleeves disposed in sealed movable position in the ends of the cylinder, a piston r... | 02/10/1987 |
| 4637221 | Mixing apparatus and method This invention provides a safe and sanitary apparatus for blending hard ice cream (or other frozen confections) with syrups and other ingredients. A refrigerated funnel holds the materials to be mixed. An auger is aligned with the funnel and the auger and... | 01/20/1987 |
| 4613353 | Convoluted shaft actuator link for glassware forming machine An actuator for use in or with a glassware forming machine for driving a member through an arcuate path, such member being a pusher cylinder for moving glassware articles. The pusher member comprises a linearly movable piston for linearly moving a convolu... | 09/23/1986 |
| 4557746 | Electro-pneumatic actuator for glassware forming machine An actuator for use in or with a glassware forming machine for pneumatically driving a member through a predetermined path, such member being, in one embodiment, a pusher cylinder for moving one or more glassware articles through a predetermined arcuate p... | 12/10/1985 |
| 4533377 | Neck ring mechanism for I.S. glass forming machine A neck ring mechanism for transferring a blank or parison from a blank mold section to a blow mold section of an I.S. glass forming machine includes a rock shaft and a pair of spaced cylinders reciprocable in opposition directions on the shaft. The rock s... | 08/06/1985 |
| 4526087 | Control mechanism for a tridimensional cam A cylinder (3) is positioned to rotate on a fixed axle (1) in such a way that several leakproof chambers (3B, 3D) are formed: a second, longer cylinder (4) is positioned to slide along the first (3) and to turn on the fixed axle (1) in such a way that sev... | 07/02/1985 |
| 4509408 | Fluid pressure actuator A piston member is mounted in a cylinder body to be axially movable and unrotatable relative thereto. A ball nut retaining balls is fixed to the piston member, and a screw shaft having a helical groove in engagement with the balls is mounted to be rotatab... | 04/09/1985 |
| 4508015 | Hydraulic cylinder A hydraulic cylinder including a closed cylinder in which are mounted a rotor for rotation about the axis thereof and two pistons for linear movement, the pistons being respectively sleeved onto two ends of the rotor and bounding a first arcuate fluid tig... | 04/02/1985 |
| 4498371 | Direct acting rotary actuator cylinder This invention relates to direct acting rotary actuator cylinders wherein the linear motion of the piston is directly converted to angular motion by a means completely enclosed within the cylinder, which means comprises a slidable partitioning body engagi... | 02/12/1985 |
| 4493245 | Rotary and linear actuating device A rotary and linear actuating device is disclosed for imparting precision rotary and linear movement to an external member or assembly. In a preferred form of the invention a rotatable assembly is rotated about an axis within a housing by selectively vary... | 01/15/1985 |
| 4432271 | Locomotion unit for a tool support adapted for progression through passageways A locomotion unit is remotely controlled to advance stepwise through a passageway by frictional engagement with the surfaces of the passageway walls. A support section is mounted on the locomotion device to bring special tools to bear at predetermined pos... | 02/21/1984 |
