1970 results about "Control arm" patented technology

Medical devices for positioning a valve in a subject's body, such as a prosthetic heart valve in a subject's heart, are disclosed. The prosthetic heart valve may include a valve assembly, a frame, and a control arm. The prosthetic heart valve may include a commissural post or multiple commissural posts. The prosthetic heart valve may include a positional marker on a control arm. The prosthetic heart valve may include multiple positional markers on one or more control arms. The positional markers can be shapes, characters, or other symbols. The positional markers may themselves be asymmetric. The positional markers may be placed in an asymmetric location on a control arm. The control arm may be asymmetrically shaped.

A teleoperator system with telepresence is shown which includes right and left hand controllers (72R and 72L) for control of right and left manipulators (24R and 24L) through use of a servomechanism that includes computer (42). Cameras (46R and 46L) view workspace (30) from different angles for production of stereoscopic signal outputs at lines (48R and 48L). In response to the camera outputs a 3-dimensional top-to-bottom inverted image (30I) is produced which, is reflected by mirror (66) toward the eyes of operator (18). A virtual image (30V) is produced adjacent control arms (76R and 76L) which is viewed by operator (18) looking in the direction of the control arms. By locating the workspace image (30V) adjacent the control arms (76R and 76L) the operator is provided with a sense that end effectors (40R and 40L) carried by manipulator arms (34R and 34L) and control arms (76R and 76L) are substantially integral. This sense of connection between the control arms (76R and 76L) and end effectors (40R and 40L) provide the operator with the sensation of directly controlling the end effectors by hand. By locating visual display (246) adjacent control arms (244R and 244L) image (240I) of the workspace is directly viewable by the operator (FIGS. 12 and 13). Use of the teleoperator system for surgical procedures is also disclosed (FIGS. 7-9 and 13).

Therapy heads and related medical systems having an actuation assembly for controlling the position / orientation of a directional energy applicator in at least two planes are disclosed. A therapy head includes an enclosure, a partition separating a lower compartment from an upper compartment, an aperture in the partition, a control arm extending through the aperture, an actuation assembly positioned within the upper compartment, and a directional energy applicator positioned in the lower compartment for transmitting energy through a window. The control arm includes an upper end disposed within the upper compartment and a lower end disposed within the lower compartment. The actuation assembly is coupled with the upper end of the control arm such that the control arm is movable by the actuation assembly in at least two planes. The directional energy applicator is coupled with the lower end of the control arm.

A system and method for abdominal surgery is disclosed. The system can have one or more end effectors that can be attached to an introducer and / or tray and inserted into the abdomen through a large puncture through the patient's umbilicus. The end effector can have a surgical tool, such as a grasper. The system can have a manipulatable control arm that can be inserted into the abdomen through a small puncture through the patient's body wall. The end effector can be attached to the control arm and simultaneously or concurrently detached from the introducer or tray. The control arm can then manipulate the end effector to perform the surgery.

Drilling rig apparatus for connecting and disconnecting well pipe at a drilling rig. A remotely controlled power wrench assembly is mounted on a remotely controlled lifting mechanism attached to a base spaced about the well axis on the rig floor. The wrench assembly includes upper and lower wrenches carried by the lifting mechanism. The wrench assembly includes a lower wrench for gripping a lower box coupling of a drill pipe section at the well center. An upper wrench is provided for spinning an upper pin coupling into or out of threaded engagement with the lower box coupling. The upper wrench has two opposed spinner-roller pairs which translate between open and closed positions for spinning the upper pin coupling when in a closed position. The upper wrench also has two opposed jaw blocks which translate between open and closed positions for gripping the pin coupling in a closed position. The spinner roller pairs and the jaw blocks move in directions perpendicular to each other into and out of a cavity through which the well axis passes vertically. Torque cylinders are provided by which the upper wrench is torqued in a first or "torquing up" direction while the jaw blocks are gripping the pin coupling and in a second or "breaking loose" direction. A manipulator is pivotably carried on a rod supported from the wrench assembly. The manipulator includes a remotely controlled arm and hand assembly which captures a drill pipe section in its hand and transfers the drill pipe while being supported vertically by the drilling rig between the well axis and a position at the side-of the wrench assembly. The drilling rig apparatus includes a bore arranged and designed for placement on the rig floor around the well axis. A slot is provided between frame members for placement of a pneumatically remotely controlled power slip manipulator for setting and releasing slips in the rotary table for supporting the drill pipe string in the well bore during connecting and disconnecting operations of drill pipe sections.

A teleoperated robotic system that includes master control arms, slave arms, and a mobile platform. In use, a user manipulates the master control arms to control movement of the slave arms. The teleoperated robotic system can include two master control arms and two slave arms. The master control arms and the slave arms can be mounted on the platform. The platform can provide support for the master control arms and for a teleoperator, or user, of the robotic system. Thus, a mobile platform can allow the robotic system to be moved from place to place to locate the slave arms in a position for use. Additionally, the user can be positioned on the platform, such that the user can see and hear, directly, the slave arms and the workspace in which the slave arms operate.

An improved trailer for transporting bulk seed boxes is provided. The trailer includes a bed, a hopper extending below the bed for receiving seed from the bulk seed box, and an auger for unloading seed from the hopper. The bed includes upwardly and outwardly extending guide plates to provide self-centering of the seed box when the box is loaded onto the bed with a forklift truck. The bed includes lock bars moveable between locked and unlocked positions to secure the seed box to the bed. The hopper includes a slide gate with a control arm connected to the gate and extending to the auger side of the trailer for moving the slide gate between open and closed position. The auger includes a foldable upper section which is pivotal between a folded transport position and an extended raised operative position. The folding of the upper auger section is facilitated by a gas cylinder and a lever arm.

A steering triangle (1) is provided for the axle suspension of motor vehicles for the articulated connection of a vehicle axle with a vehicle chassis with two control arms (2, 3). The control arms are connected to each other in a joint housing (6) formed by the control arms (2, 3) together for a rubber-metal bearing (11) for fixing the steering triangle (1) on the vehicle axle. The rubber-metal bearing (11) has a pivot axis (12) provided with a spherical surface and an elastomer body (14), which extends around the pivot axis (12) at least in the area of the spherical surface and which is accommodated in a recess (16) located within the joint housing (6), in which steering triangle two pressing rings (17, 18) are arranged within the recess (16) of the joint housing (6) on the axial outer sides of the elastomer body (14). The pressing rings can be moved toward each other by a tensioning device via the intermediary of stop faces (22) of the joint housing (6). The stop faces are in contact with the outer sides of the pressing rings (17, 18), which outer sides face away from each other. The rubber-metal bearing can be pretensioned both in the axial direction and in the radial direction, so that stronger forces can be absorbed due to the higher rigidity achieved as a result.

The snowmobile having a longitudinal axis, a chassis, a pair of skis each having a steering spindle, and a suspension system. The suspension system comprises, for each ski, a first control arm pivotally mounted to the chassis for pivotal movement about a first pivot axis and having a first pivotal connection to the spindle and a second control arm pivotally mounted to the chassis for pivotal movement about a second pivot axis and having a second pivotal connection to the spindle spaced from the first connection. The pivot axis of each control arm and the connection of that control arm to the spindle define a control arm plane; the control arm planes intersect to define a control line that intersects a vertical plane containing said longitudinal axis.

The present invention provides a suspension tuning device and kit for vehicles with four link rear suspensions. More specifically, the suspension tuning device generally comprises a pair of billet aluminum lower control arms each having a spring platform rotatably secured to a weight jacking bolt and a removable / replaceable sway bar attachment plate. Each end of the control arms include a transverse thru-bore adapted to accept a three part urethane bushing or a spherical bearing. The lower control arms are constructed to mount within a standard four link rear suspension, such as that supplied on a FORD MUSTANG, to permit quick suspension alterations throughout a predetermined range.

A system for controlling a motorized vehicle, comprising: a controller configured to activate a pick state for a motorized vehicle only while the motorized vehicle is in a low speed travel mode and a control arm is located in a non-braking position, the controller further configured to override a dead-man brake mechanism and automatically actuate a traction motor that drives the motorized vehicle within the low speed travel mode while the pick state is activated.

The amount of lean to be provided is determined by force sensors, the speed, and / or the angle of turn. Then the vehicle is leaned by actuators in the suspension in accordance with a predetermined protocol in an electronic control unit (ECU). The protocol also provides shock absorption by rapidly tracking a contour of a surface on which the vehicle rides. The suspension is provided by a plurality of arm assemblies each including a lower arm, an upper control arm, and an actuator motively connected to the lower arm and to the upper control arm. The arm assemblies are pivotally connected to the frame on a common axis. The arm assemblies generally form parallelograms and are actuated in concert to remain generally parallel to each other through a range of angles to adjust the lean of the vehicle. The arm assemblies are also actuated independently of each other to accommodate variations in the contour. In one aspect, an actuator controlled by an ECU can be replaced by a mechanical actuator that can be activated manually such as by a driver's own leaning weight.

A vehicular rear suspension system includes an upper arm, a lower arm, and a control arm, each of which is connected to a knuckle. A straight line passing through a ball joint and a rubber bushing joint intersects the road surface at an intersection point that is positioned behind a ground contact point of the rear wheel in the longitudinal direction of the vehicle body. The ball joint connects the upper arm to the knuckle, and the rubber bushing joint connects the lower arm to the knuckle. Longitudinal elastic coefficients of the three arms are set in a predetermined relationship. Therefore, the intersection point at which an elastic kingpin intersects the road surface is positioned without fail behind a point of action of a lateral force when turning in the longitudinal direction of the vehicle body to achieve a lateral force toe-in and enhanced steering stability of the vehicle.

A tilting suspension system is adapted for use with a vehicle having three wheels and a frame. The system has two sets of control arms, each set of control arms being pivotally connected to one side of the frame. An upright is pivotally connected to each set of control arms, each upright having a rotatable hub for allowing one of the wheels to be mounted thereto. Two rocker arms are pivotally connected to the frame, and a control link is pivotally connected to each of the rocker arms, such that pivoting of one rocker arm causes corresponding pivoting of the other rocker arm. A link member operably connects each rocker arm to a corresponding upright, such that pivoting of each rocker arm causes corresponding movement of the uprights. An actuator is configured to selectively pivot the rocker arms, such that actuation of the actuator pivots the rocker arms, thereby causing the frame to rotate about a generally longitudinal roll center and causing each upright to rotate about a generally longitudinal axis.

A slider is provided on a rear door so as to be able to freely reciprocated, and the slider is connected to a vehicle body through a control arm and a driven arm. A linear cam groove and a curved cam groove continuous to the linear cam groove are formed in a guide plate fixed to the rear door. A control arm that controls an operation of the rear door includes a proximal portion rotatably attached to the slider and a pair of arm portions continuous to the proximal portion. The longer arm portion is attached to the vehicle body whereas the shorter arm portion is guided by the cam grooves. A projection amount of the rear door can be thereby set larger than a curve amount of the curved cam groove. In addition, a width of the guide plate can be thereby reduced. Therefore, the guide plate can be attached not to the vehicle body but to the rear door.

The invention discloses a fluorine-containing polymer mixing material and a method for preparing a bulb buffer ball keyway by the same. The fluorine-containing polymer mixing material is prepared by mixing fluorine-containing polymer resin with filler modified by a coupler, and comprises the materials in parts by mass as follows: 60-99 parts of fluorine-containing polymer resin and 1-40 parts of modified filler. The filler meets the condition that the filler is stably sintered at a temperature above the melting temperature of the resin and the granularity is smaller than or equal to 150 microns; the filler does not absorb moisture; and the filler is not clustered under the sintering condition and is not reacted with the polymer. The coupler accounts for 5-40% of the filler by mass percentage. The material has excellent chemical stability, self-lubricating property, noninflammability, resistance to atmospheric aging and high and low temperature adaptability and the like as well as higher mechanical strength. The hardness can be improved through modification and the material is used to prepare wear-resisting products. The bulb buffer ball keyway is prepared from the material so that a suspension type direction control arm assembly of an automobile with high mechanical strength, good wear-resistance and a long service life is further obtained.

A four-wheeled recreational vehicle in the form of a go-cart having an open body without doors or windows. The body is formed from interconnected tubular members to define a chassis and frame. The vehicle includes a front suspension having V-shaped, parallel upper and lower control members including forward and rear control arms. The forward control arms are substantially perpendicular to the chassis centerline and the rear control arms incline inwardly and rearwardly from the front wheels. Greater vertical front wheel travel is provided for improved ride comfort and stability over rough terrain. The accelerator and brake pedals are placed closer to the front wheel pivot axis for greater legroom.

The arrangement is for controlling the connection for a hearing aid (15) with a fixture (13) anchored in the skull bone. A control arm (1) extends from a connector (17), disposed between the hearing aid (15) and an abutment (9), to a handle (3) disposed at a side of the hearing aid (15) where the handle (3) is reachable by a patient. Biasing means provides a biasing force for biasing the control arm towards the connector (17). The control arm (1) is in operative engagement with the biasing means and movable in a direction to counter-act the biasing force of the biasing means to release the abutment (9) from the connector (17).

A preferred embodiment of a folding trailer with kneeling device is disclosed. The trailer includes a kneeling mechanism that is moveable between a traveling position and a kneeling position. The kneeling mechanism includes a pair of control arms that are cantilevered from the ends of a tubular control shaft. The control shaft is hingeably connected to a frame of the trailer. At least one hydraulically actuated cylinder is used to control the positioning of the kneeling mechanism with respect to the frame of the trailer. Placing the kneeling mechanism place in the kneeling position causes the trailer edge of the trailer to be positioned proximate to the ground to facilitate loading and unloading of the trailer.

Provided is an adjustable pedal system. The adjustable pedal system includes: a support bracket having a predetermined hole and a guide groove which are substantially perpendicular; a driving part including a driving arm which can make a substantially vertical motion along the guide groove and provides a driving force to the driving arm; a control arm including a hinge hole which is coupled to the driving arm by a first pin and a sliding slot which is coupled to the predetermined hole by a second pin and formed oblique to the guide groove; and a pedal arm having a pedal at one end thereof and being connected to the control arm at other end thereof, the control arm slides obliquely along the sliding slot according to the working of the driving arm when moves vertically along the guide groove and thus this causes a position of each of the control arm and the pedal arm to be changed.

A system for controlling the acceleration, deceleration, braking, travel speed, and power assisted steering of a pallet truck, comprising setting a steering system and a traction system performance as a function of a position and rate of change of position of a control arm in a vertical axis and a horizontal axis of rotation.

A master-slave control flexible continuum robot device and a control method thereof belong to the technical field of robots. The master-slave control flexible continuum robot device comprises a control arm, a mechanical arm and a control system. The mechanical arm is a trunk simulative flexible arm and achieves bending through a plurality of screw-driven flexible rods. A system enables the mechanical arm to complete the same actions by simulating the control actions of operators on the control arm, and therefore simple and visual control on the mechanical arm is achieved. The master-slave control flexible continuum robot device achieves visual master-slave control by aid of the characteristic that the control arm is similar to the mechanical arm and by combining the sensor and the controller; controls the mechanical arm through the scaled-down control arm; effectively reduces the control difficulty and is applicable to remote control operation. In addition, the master-slave control flexible continuum robot device can bend, extend and contract in multiple directions, has unique grabbing, operating and obstacle evading functions, and has a wide application prospect.

In a method of making a control arm for a wheel suspension of a motor vehicle a blank of steel material having a tensile strength of at least 800 MPa is shaped, using a sheet metal forming process, into a shell body having a center web and plural flank portions extending from the center web in a same direction. The flank portions are connected by a latticed reinforcement made of plastic, without application of a heat treatment process.