42results about How to "Minimized tension" patented technology

A nasal CPAP treatment apparatus is disclosed with a flow generator coupled to a nasal mask. The mask has a nasal cushion forming a nose-receiving cavity. The cushion has a triangularly-shaped frame of resilient material with a mask engaging portion connected by a side wall to a face engaging portion which has a nasal bridge region, a cheek region and a lip region. The cushion may have a portion of the side wall in the nasal bridge region being other than straight to provide an improved sealing in the nasal bridge region. A plurality of membranes, preferably three, of resilient material extend substantially around the triangularly-shaped frame. Some of the membranes are thicker in the lip region than in the nasal bridge region to improve fit of the cushion in use.

Disclosed are a robot joint driving apparatus and a robot having the same, capable of minimizing tension of a wire applied to a movable member by installing an idle pulley in a power transmission structure using a ball screw apparatus and the wire. The robot joint driving apparatus includes a reversible drive motor, a pair of movable members performing a linear movement according to rotation of the reversible drive motor, a wire connected to the movable members from both directions of the movable members, an idle pulley rotatably installed at one side of the wire, a joint part rotatably installed at an opposite side of the wire, and an adjustment unit to adjust tension of the wire.

A surgical fastener apparatus, for securing a surgical mesh material to body tissue including a pair of anchors each having retaining means formed on an outer surface thereof; and a suture tether interconnecting the pair of anchors to one another. The pair of anchors having a substantially cylindrical body having a conically tapered distal end and a planar proximal end. The retaining means includes a series of semi-circular angled projections having a planar proximal surface and a tapered distal end, wherein a center of each of the angled projections is spaced a distance from a longitudinal central axis of the body portion. The surgical fastener is made from a bioabsorbable material which reabsorbs into said body tissue at an appropriate rate, such as for example, polyglycolic acid and polylactic acid.

A surgical fastener apparatus, for securing a surgical mesh material to body tissue including a pair of anchors each having retaining means formed on an outer surface thereof; and a suture tether interconnecting the pair of anchors to one another. The pair of anchors having a substantially cylindrical body having a conically tapered distal end and a planar proximal end. The retaining means includes a series of semi-circular angled projections having a planar proximal surface and a tapered distal end, wherein a center of each of the angled projections is spaced a distance from a longitudinal central axis of the body portion. The surgical fastener is made from a bioabsorbable material which reabsorbs into said body tissue at an appropriate rate, such as for example, polyglycolic acid and polylactic acid.

An adjustable steering column assembly includes a first shroud portion comprising an outer tube, a second shroud portion which comprises an inner tube, and a clamp mechanism that includes a part that is fixed relative to the outer tube, the first and second shroud portions being releasably engaged by the clamp mechanism to selectively permit an amount of relative movement between the first and second shroud portions that is required during adjustment of the steering column assembly, the assembly further including an energy absorbing member which includes a strap that interconnects the inner tube and the part of the clamp bolt assembly, the assembly being so arranged that upon collapse the inner tube moves relative to the clamp assembly whereupon the energy absorbing member is deformed beyond its elastic limit, thereby absorbing energy in the system to control the collapse of the assembly.

A wrist-mount blood pressure monitor includes a housing having an anterior leg and a posterior leg rigidly connected together. The anterior leg is opposed and spaced a distance from the posterior leg so that a wrist is allowed to fit in the space between the legs. An inflatable bladder is positioned within the anterior leg of the housing for pressurizing an artery within the wrist. At least one stiffening member can be enclosed within the housing for assuring limited transverse movement between the anterior and posterior legs during pressurization of bladder. A blood pressure monitoring unit is operablely connected to the bladder for sensing and calculating blood pressure. A display unit is also provided for displaying blood pressure measurement.

Embodiments of the present invention relate to an improved snowmobile assembly yielding increased energy absorption in its suspension, improved handling, optimized engine positioning and lower center of gravity. In one embodiment, a rear snowmobile suspension comprises a frame comprising a pair of opposing, longitudinally extending, transversely spaced fixed rails, a pair of rear swing arms pivotably connected on respective first ends to a rear portion of the frame, one on each of a first and a second fixed rail, a front swing arm pivotably connected on a first end to a front portion of the frame on the first fixed rail, and a front drive arm pivotably connected on a first end to a front portion of the frame on the second fixed rail, opposing the front swing arm, wherein the front drive arm houses a portion of the drive assembly for driving the snowmobile.

This invention is a method of fabricating a conformal lithium polymer battery comprising the steps of: selecting a slab of lithium polymer battery material of a desired height, containing a desired number of cells; freezing the slab; vertically cutting the slab to a desired shape; attaching a lead to each anode conductor; and attaching a lead to a each cathode conductor. The slab may contain one or many cells. The leads may be made of multistranded, metallic wire, metallic ribbon, low melting point alloy, self-healing metal, and litz wire. Attachment is accomplished so as to minimize tension on the leads. The cut slab may need to be deburred after cutting and before attaching leads. Preferably, burr formation is prevented by recessing the edge of the anodic or cathodic half cells. Lead attachment my be accomplished by: wire bonding; wedge bonding; adhesive bonding with conductive epoxy, anistotropic conductive adhesive or conductive thermoplastic; stapling; adhering the lead to the electrode by electropolymerization; welding; and growing a lead in place by electroless plating, electro-plating or a combination of electroless plating and electroplating. The distal ends of the leads may be connected together so that the cells are connected together in series, in parallel or some in series and the remainder in parallel. After the leads have been attached to the cut slab and connected together, the assembly will preferably be wrapped with standard packaging for lithium polymer batteries.

The present invention relates to a method for the manufacture of a composite article comprising a composite plate (1) and at least one fitting (4). The method is characterized by the steps of arranging at least one former on said composite plate (1), arranging at least one fitting (4) on said composite plate (1), producing a lay-up by applying a composite material layer (9) least partly covering an external surface of the former and of the fitting, and curing the layup in a curing process. After curing, said composite material layer (9) forms the walls of a stiffener and at least partly encloses the fitting so as to support it in a predetermined position.

The present invention relates to crosslinked polyvinyl alcohol raw cord and method for producing the same, and more particularly, to crosslinked polyvinyl alcohol fiber, in which PVA resin having a degree of polymerization of more than 1,000 and a degree of saponification of more than 97.0 mol % is dissolved in dimethyl sulfoxide, the solution is subjected to dry and wet gel spinning using methanol as a coagulation solution, drawn and thermally treated, the resulting polyvinyl alcohol drawn yarn with 500-3,000 deniers is twisted to produce a cabling yarn, the cabling yarn is plied into a 2-ply or 3-ply yarn to produce a raw cord, the raw cord is wound on a bobbin for crosslinking and crosslinked in an aqueous crosslinking solution containing an aromatic aldehyde compound and an acid catalyst. Moreover, the present invention relates to a crosslinker-introducing apparatus, which is used in the above method and can effectively induce the crosslinking reaction of the wound raw cord.

An optical fiber management system for a remotely operated vehicle (ROV) includes a spool containing a length of optical cable, a motor coupled to the spool, a motor controller, a speed sensor and a feed mechanism. The motor controller can detect the speed of the ROV through water and control the rotational speed of the motor so that the optical cable is removed from the spool at a speed that is equal to or greater than the speed of the ROV. A feed mechanism is used to apply a tension to the optical cable so that it is removed from the spool and emitted from the ROV without becoming tangled.

In chain and sprocket systems with at least two resonance modes, two or more tension reducing sprockets are oriented to cancel each other at a first resonance mode and have no effect to increase tensions at such first resonance mode. The tension reduction sprockets, however, are oriented with each other so that tensions will be reduced at a second resonance mode. Hence, two or more tension reducing sprockets are used to reduce tensions at a second resonance mode from sources outside the chain and sprocket system while minimizing tension increases at first resonance mode.