1755 results about "Rotational joint" patented technology

A patient interface has a single loop headstrap and a mask for covering at least the nostrils of the user. The single loop headstrap extends from the mask at either end. A short length of supple conduit is coupled to the mask by a swivel or ball joint to allow rotation of the conduit relative to the mask through different angles and orientations.

A novel adjustable hand grip device for use with a three dimensional coordinate measurement system provides an ergnomically formed pistol grip rotatably positioned on a manually manipulated multijointed measuring arm allowing a plurality of angular positions convenient to an operator. The adjustable hand grip includes a clamp for releasably securing the device n a preselected position. An embodiment of the present invention includes a ball and detent device for releasably positioning the hand grip in a plurality of preselected positions. In yet another embodiment the hand grip device includes a swivel joint allowing rotation of the pistol grip relative to the clamp.

An arm supporting exoskeleton comprises a shoulder base coupled to an arm link mechanism. The arm link mechanism comprises a proximal link and a distal link configured to rotate relative to each other about a rotating joint; at least one arm-coupler adapted to couple a user's arm to the distal link; a tensile force generator coupled to the proximal link and the distal link, and providing a torque to flex the distal link relative to the proximal link; and a protrusion located substantially at the rotating joint. When the distal link extends past a toggle angle, the protrusion constrains the tensile force generator, and the torque provided by the tensile force generator remains substantially small. When the protrusion does not constrain the tensile force generator, the torque tends to flex the distal link relative to the proximal link, thereby reducing human shoulder forces and torques required to raise the user's arm.

A rotary union is integrated into the interior of a heavy-duty vehicle hub cap. The hub cap includes a cylindrical sidewall, and an outboard wall that is integrally formed with an outboard end of the sidewall, and which extends generally perpendicular to the sidewall. The hub cap also includes a radially-extending flange that is formed on an inboard end of the sidewall, which receives fasteners to mount the hub cap on a wheel hub. The sidewall and the outboard wall form an interior compartment in the hub cap, and a rotary union is mounted to the hub cap in the interior compartment. The rotary union is mounted on the inboard surface of the outboard wall of the hub cap and is in general axial alignment with an axial centerline of a wheel end assembly, providing fluid communication from a tire inflation system to the tires of the vehicle.

The present invention discloses a dual strap system used for connection to a utility bag, such as a computer bag, by which the bag can be converted into a backpack, In a first embodiment, the dual straps of the system cross each other by means of a rigid member disposed at the crossing point to provide a twist resistant arrangement and properly center the present invention on the back of the user. One strap has a stop located thereon which helps position the straps with respect to the rigid member when the strap is off the bag and maintain the integrity of the device during the time the device is not installed on the bag. An attachment clip system is also provided which automatically positions the straps properly for use when the right hand grab technique is used to shoulder the device. Further, the clip system is designed to keep the straps from tangling when the device is off the bag. In a second embodiment, a swivel is provided for connection of the two straps which allows the rigid member to act as a cantilever-like member which helps provide a proper opening in the straps for shouldering the present invention.

A laparoscopic instrument holder for positioning a laparoscopic device includes a central portion having a first member operatively associated with a second member, the members selectively movable with respect to one another along a central axis, with the central portion having a proximal end defined by the first member and a distal end defined by the second member. The holder also includes at least three proximal rotational joints coupled to the first member proximate the proximal end, at least two distal rotational joints coupled to the second member proximate the distal end, a first ball and socket joint coupled to a distal rotational joint, and a second ball and socket joint coupled to the first ball and socket joint. In addition, the holder includes a clamp configured and dimensioned for retaining a laparoscopic device, with the clamp coupled to the second ball and socket joint, and a coupling portion proximate a first of the proximal rotational joints.

A central tire inflation system for maintaining tire inflation on a vehicle having a torque transfer sleeve connected between an axle plug assembly and a stationary shaft on the rotary union assembly. A flexible conduit extends through the axle plug to the rotary union assembly and is used to provide air pressure to tires connected to the rotary union assembly. The torque transfer sleeve limits rotational torque on the flexible conduit. Primary and secondary seals are provided on the rotary union assembly as well. A vent chamber between the primary and secondary seals allows the release of air which exits the primary seal, which prevents pressure from entering the lubrication area of the rotary union assembly.

A rotary union assembly for an automatic tire inflation system for maintaining the pressure in the tires on a tractor trailer or other vehicle having a source of pressurized air for communication with the tires. The assembly communicates the tires with the air source through the axle interior using a conduit having a rigid portion and a flexible portion that extends between a support in the axle spindle and a rotary union housing secured against the outside end surface of the hub cap so as to be outside the wheel lubrication compartment and rotatable with the hub cap. The two-component conduit allows for a durable seal with the support in the axle spindle and accommodates misalignment of the rotary union housing with the conduit support. Relief valves in the housing prevent excessive pressure buildups in the housing and in the hub cap in the event of an air leak.

A multi-diameter tube coupling is provided for interconnecting flexible plastic tubing of the type used in drip irrigation systems and the like, wherein the tube coupling is adapted for use with a range of different tubing sizes. The tube coupling includes a central body defining an internal flow path, with a retainer collet mounted thereon at each open end of the flow path to capture a seal member having a compliant, pressure-activated seal lip. The retainer collet includes an annular array of lock fingers for unidirectional slide-fit locked reception of one end of a length of tubing within a range of different sizes, with the seal lip engaging the tubing to provide a substantially leak-proof connection. Alternatively, the collet lock fingers accommodate slide-fit locked reception of a barbed swivel adapter, with the seal lip engaging the adapter to provide a substantially leak-proof connection.

Apparatus (10) for generating motion around a remote center of motion (RCM), comprising a distal link (L12, LR) arranged to revolve about the remote center of motion and to translate through the remote center of motion, a proximal link (L10, LI) arranged to revolve about a proximal center of motion (LCM), coupled to a base link, through a rotational joint (150) and a sliding joint (181), a first mechanism comprising a first link (L9, BE) pivotally coupled to the proximal link (L10) and to the distal link (L12) and operable to transfer motion of the proximal link relative to the proximal center of motion to a motion of the distal link relative to the remote center of motion by maintaining a parallelogram (PAR1), and a second mechanism operable to move the first link with two degrees of freedom in a plane parallel to the plane of motion of the proximal link, characterised in that the second mechanism comprises one link or a serial connection of links (L4, L8, L3, L7, L2, L6) connecting the base link to the first link, configured to have an orientation of instant motion which is different from an orientation of instant motion of the proximal link (L10), relative to the base link.

A portable child's bed is a bassinet hangably suspended from a pair of frame members. The bassinet includes a pair of opposing sidewalls that have a seam which allows for the sidewalls to inwardly pivot and then fold so as to allow for the compaction of the bassinet unit. The bassinet also includes a plurality of storage pockets capable of holding such infant-care related items such as diapers, powder, ointments, small blankets, towelettes, formula, feeding bottles and many other related items. The bassinet may also include a canopy for shielding the infant's head while resting or sleeping. The frame members include a telescoping strut which extendably expands or contracts within a strut housing. The telescoping strut and strut housing are in fluid communication and connected by a rotatable joint having an anterior and posterior sleeve to accommodate the pair of frames. The anterior sleeve is rotatable through 180°, thereby providing the pair of frames the ability to fully expand and position the telescoping struts in such a way so as to provide support to the bassinet. The anterior sleeve also allows for the frames to be compacted so as to reconfigure the portable child's bed into a lightweight and convenient travel bag.

A swing wing tip system for an air vehicle is provided. The swing wing tip system has a swing wing tip assembly with an unfixed wing tip portion movably connected to a fixed wing portion of a wing. The swing wing tip assembly has a dual load path structure configured to transfer load from the unfixed wing tip portion to the fixed wing portion. The dual load path structure has dual wing skin plates and a rotation joint coupled between the dual wing skin plates and configured to rotationally couple the unfixed wing tip portion to the fixed wing portion. The rotation joint has a dual rotation pin element having a center rotation axis and dual rotation elements configured to rotate about the center rotation axis. The swing wing tip system has an actuator assembly coupled to the rotation joint and a controller system coupled to the actuator assembly.

A robot is obtained having various functions that are demanded for planetary landing vehicles, extreme operations robots or the like, in particular to provide a leg structure for a robot that is capable of getting up itself when overturned, facilitating take-off and landing on uneven ground, and that has a walking function and that has a hand function capable of three-dimensional operation. A robot comprises a main robot body and at least three legs mounted on this main body for enabling three-dimensional movement of the main robot body such as a self-erecting action or walking action; each leg is constituted by a multi-joint arm having a plurality of said offset rotary joints linked together and has a ground-engaging member mounted at the leading end of the arm, so that each leg is capable of independently controlled three-dimensional movement and drive.

The invention discloses a drilling and cutting integrated outburst preventing and permeability improving system for mines. The system comprises a drilling machine, a drill stem and a drill, and further comprises a water tank and a high-pressure pump station. The drill is a drilling and cutting integrated drill, the drill stem is connected with a high-pressure rubber hose through a first rotary joint, an inlet of the high-pressure pump station is connected with the water tank, and an outlet of the high-pressure pump station is connected with the high-pressure rubber hose; the drilling and cutting integrated drill comprises a drill casing and a waterpower cutting component, a first drilling cutter is arranged on the outer side at the front end of the drill casing, and a first drainage channel is opened at the front end of the drill casing; and the waterpower cutting component comprises a waterpower spin cutting head, a first conduit and a second rotary joint which are connected successively, the waterpower spin cutting head is arranged on the inner side at the front end of the drill casing, a first limit mechanism and a second limit mechanism are arranged on the inner wall of the drill casing, and a nozzle is mounted on the waterpower spin cutting head. According to the drilling and cutting integrated outburst preventing and permeability improving system for mines, the device purchase and usage cost is reduced, the labor time and the labor cost are reduced, the pumping efficiency of coal-bed gas is improved, the practicability is good, and popularization and application values are high.