146results about How to "Sufficient structural integrity" patented technology

A biocompatible tissue repair stimulating implant or “scaffold” device, and methods for making and using such a device, are provided. The implant includes one or more layers of a bioabsorbable polymeric foam having pores with an open cell pore structure. A reinforcement component is also present within the implant to contribute enhanced mechanical and handling properties. The implant houses a biological component that may be released to tissue adjacent the location in which the implant is implanted to faciliate and / or expedite the healing of tissue. This biological component resides primarily within the foam component of the implant, being incorporated within pores formed within the foam.

A biocompatible tissue repair stimulating implant or “scaffold” device is used to repair tissue injuries, particularly injuries to ligaments, tendons, and nerves. Such implants are especially useful in methods that involve surgical procedures to repair injuries to ligament, tendon, and nerve tissue in the hand and foot. The repair procedures may be conducted with implants that contain a biological component that assists in healing or tissue repair.

An implantable refillable device to deliver pharmacologic agents through a sclera to an internal portion of an eye is shown. The device comprises a hollow reservoir and a delivery tube. The delivery tube has a proximal end and a distal end. The proximal end communicates with the hollow reservoir and the distal end terminates in a dispensing outlet. The delivery tube is configured in a selected shape to extend from the hollow reservoir anterior in an eye to a posterior segment posterior in an eye adjoining a sclera. The second end is configured to position the dispensing outlet in contact with or contiguous the sclera and is located posteriorly in an eye and proximate to an internal portion of an eye to be treated with a pharmacologic agent. An implantable device to deliver pharmacologic agents through an outer surface tissue of an organ is also shown.

A flexible material for a flexible container can include a first laminate and a second laminate joined to at least a portion of the first laminate by at least one seal. The first laminate can include a first gas barrier layer disposed between first and second sealable layers, wherein the first and second sealable layers define opposed exterior layers of the first laminate. The second laminate can include a third sealable layer defining an exterior layer of the second laminate, and a second gas barrier layer. The at least one seal joins a portion of the third sealable layer to at least a portion of the second sealable layer.

The invention relates to an article comprising: a) one or more stacks of battery plates comprising one or more bipolar plates; b) located between each plate is a separator and a liquid electrolyte; further comprising one of more of the features: 1) c) the one or more stacks of battery plates having a plurality of channels passing transversely though the portion of the plates having the cathode and / or the anode deposited thereon; and d) i) one or more seals about the periphery of the channels which prevent the leakage of the liquid electrolyte into the channels, and / or posts located in one or more of the channels having on each end an overlapping portion that covers the channel and sealing surface on the outside of the monopolar plates adjacent to the holes for the transverse channels and applies pressure on the sealing surface of the monopolar plates wherein the pressure is sufficient to withstand pressures created during assembly and operation of electrochemical cells created by the stacks of battery plates; 2) c) a membrane comprising a thermoplastic polymer is disposed about the entire periphery of the edges of the stack of plates; 3) wherein the separator is in the form of a sheet having adhered to its periphery a frame; and 4) c) an integrated valve and integrated channel communicating with the valve.

A user configurable, modular port expansion system allows the user of a host system such as a USB-enabled personal computer to customize a desired configuration of one or more peripheral device modules without the use of cables between modules. The peripheral device modules are physically and electrically connectable to each other side-by-side between a hub end module and a power end module in any sequence so that there can be provided, within the limits of the host port specification, virtually any number of selected, expanded functions in any combination. The peripheral device modules may include, by way of example, a standard parallel DB-25 port module, a two-port serial PS / 2 module, a two-port serial DB-9 module, a four- or seven-port USB hub, an RJ-11 Ethernet LAN module, and an RJ-11 modem module. Where the host port is USB compliant, power to the peripheral device modules may be supplied by the host system via a USB standard cable connected to the USB port of the hub end module, or, if more power is required, by an external a.c. power adapter connectable to the power end module. The power end module may also include an USB expansion port.

An unmanned aerial vehicle selectively formed of high strength composite structural part portions and lightweight aerodynamic foam portions to provide a low-cost and lightweight UAV that comports with export, civil airspace, and safety regulations. To further to reduce an overall weight of the UAV, mechanical elements are designed to provide multiple functionalities. Structural elements may be manufactured in same or similar non-specialized processes, and non-structural elements manufactured in same or similar non-specialized processes, reducing overall manufacturing costs. Materials and bonding elements are selected to provide frangibility and yet maintain normal flight structural integrity.

A large scale LED display has a cable and rigid link support structure for a number of LED modules. The cable and rigid link support structure is flexible but has sufficient structural integrity to prevent misalignment of the pixel modules. The LED modules are removable from the support structure individually and as a group so as to facilitate repair of the display. The LED modules are rugged so as to withstand harsh outdoor conditions and they provide sufficient luminescence for use in sunlight.

The arched multi-segmented ramp assembly of the present invention has the advantageous qualities of being portable, lightweight, easily deployable and storable. Identical step links have keystone-shaped sides that abut adjacent members and are joined one to the other by knuckle-like hinges, both of which structural features impart to the unrolled assembly a gently arcuate contour, thereby enhancing the ramp's strength to weight characteristics compared to ramps of the prior art. The hinge connections further permit the ramp to be rolled up for easy transport and storage. Because of its modular design, the arched ramp may be assembled using varying numbers of component step-links, thus providing a user with the flexibility to form a ramp assembly with lengths suitable for different particular applications.

A method of forming an anode comprising zinc for a zinc / air cell. The method involves mixing zinc particles with binders including preferably polyvinylalcohol, surfactant and water to form a wet paste. The wet paste is compacted and molded into the near shape of the cell's anode cavity and then heated to evaporate water. A solid porous zinc mass is formed wherein the zinc particles are held bound within a network with microscopic void spaces between the zinc particles. The solid mass can be inserted into the cell's anode cavity and aqueous alkaline electrolyte, preferably comprising potassium hydroxide, then added. The solid mass absorbs the aqueous electrolyte and expands to fill the anode cavity to form the final fresh anode.

A high velocity munition comprises a projectile, mounted on a cartridge case, that can be fired from an automatic cannon or weapon. During storage or transport an IM venting device included in the cartridge case prevents the propellant charge from firing the projectile, leaving the cartridge damaged, but intact upon premature ignition. The IM vent exhaust channel is filled with a solid fusible material that melts at a lower temperature than the ignition temperatures of the igniter (or primer) and the propellant charge of the projectile. At least one non-fusible, ruptureable member is included in the IM vent channel and positioned to provide structural integrity to the fusible material in the channel. Alternatively or in addition to the fusible material, a shape memory alloy ring surrounds the igniter (or primer) and separates from the cartridge when the cartridge reaches a temperature that causes auto-ignition.

A method of making a membrane electrode assembly is provided. The method includes providing a non-porous polymeric substrate which has sufficient structural integrity and elastic deformation such that no significant deformations occur during processing to facilitate reuse. The substrate is optionally formed into a loop for continuous processing. A slurry is formed which includes an ionically conductive material, an electrically conductive material, a catalyst, and a high boiling point solvent. The slurry is applied onto the non-porous polymeric substrate, for example, in a pattern of discrete regions. The slurry is dried to form decals. The decals are bonded to a membrane and then the substrate is peeled from the decal in a substantially undamaged condition so that it may be reused.

A hydraulic rescue tool (20) that utilizes a hydraulic cylinder (22) having a piston rod (24) that is movably disposed within the housing of the cylinder to provide linear driving means for the rescue tool. A cylinder yoke (32) is rotatably attached to the hydraulic cylinder housing and includes a front handle bar (34) for manipulating the tool. Rotation of the cylinder yoke (32) relative to the cylinder (22) prevents injury to an operator in the event that the tool binds and torques. An implement unit (50), which is either a cutter (54) or a spreader (74), is detachably disposed onto the piston rod (24). Pivotal links (36) connect the unit (50) to the cylinder yoke (32), with the unit used for cutting or spreading metal during a rescue. A plurality of quick release pins (72) attach the implement unit (50) to the piston rod (24) and pivotal links, thus providing a rapid release of the implement unit (50) from the piston rod (24) and links (36) for replacement or repair. The piston rod (24) has a rebated diameter (82) on its internal end that is at least two times smaller than the piston. This reduction in diameter provides additional surface area for hydraulic pressure when retracting an attached implement unit.

A mixing head attachment is provided for use in mixing grouts and / or resins (hereinafter for brevity collectively referred to as resin) used in mine roof support systems in the securement of an anchor bolt in a bore hole. A threaded fastener is provided to tension the anchor bolt, and a resin composition is used to secure at least part of the anchor rod in the bore hole. The mixing head attachment is provided with a rigid or semi-rigid body which extends axially along a body axis, and has sufficient structural integrity to effect mixing of unset resin as the mixing head is rotated about its axis. The mixing head attachment includes one or more mixing blades or projections which define a mixing surface or face. A recess is formed in a proximal-most end of the body, sized and shaped for mated engagement with a distal end of the anchor bolt, allowing mixing head attachment to be in generally co-axial arrangement to the anchor bolt with a sufficient minimum contact force selected so that while the resin remains unset, the rotation or spinning of the anchor rod in the bore hole effects rotation of the mixing attachment about its axis therewith.

A multiple-section recreational board is formed in two or more sections. Contiguous sections of the recreational board arc coupled together by one or more bridges which provide the structural integrity generally equivalent to an integral one piece recreational board. The bridges may be latched by an integral or separate latch mechanism. In accordance with one aspect of the invention, the multiple-section recreational boards are relatively easily disassembled and reassembled and are relatively less complex to manufacture than known multiple-section recreational boards.

In one embodiment, the electrochemical cell comprises: a first electrode, a second electrode, and a membrane disposed between and in ionic communication with the first electrode and the second electrode. A first flow field is in fluid communication with the first electrode and disposed opposite the membrane, with a second flow field in fluid communication with second electrode and disposed opposite the membrane, and an electrically conductive pressure pad adjacent the first flow field and the first electrode. The pressure pad comprises a mixture of at least one substoichiometric oxide of titanium and an elastomeric material.

A sock and / or outer footwear having one or more portions with reduced frictional characteristics. One or more of the heel portion, the arch portion and the ball portion of the sock and / or interior of the outer footwear is fabricated with the reduced frictional characteristics. The reduced frictional characteristics may be established by applying a low-friction material to such portions, incorporating one or more low-friction fibers into the material of the sock and / or interior of the outer footwear in such portions or reducing the thickness of the material in such portions. The provision of reduced frictional characteristics in one or more of the heel, arch and ball facilitates insertion of a foot into footwear.

The present disclosure provides a series of new and improved porous polyamide aerogels derived from multifunctional aromatics that combine the high mechanical strength of aramids with the pore structure of aerogels. The polyamide aerogels have a hyperbranched structure, relatively low density, high porosity and are derived from functionalized monomers having more aromatic groups than functional groups. The present disclosure also provides a new method for producing the porous polyamide aerogels by polymerizing an aromatic multifunctional carboxylic acid with an isocyanate at moderate reaction condition followed by drying with liquid CO2.