1700results about How to "Durable" patented technology

An improved prosthetic mitral valve is provided having advantageous hemodynamic performance, nonthrombogenicity, and durability. The valve includes a valve body having an inflow annulus and an outflow annulus. Commissural attachment locations are disposed adjacent the outflow annulus. An anterior leaflet and a posterior leaflet of the valve are shaped differently from one another. The inflow annulus preferably is scalloped so as to have a saddle-shaped periphery having a pair of relatively high portions separated by a pair of relatively low portions. The anterior high portion preferably is vertically higher than the posterior high portion.

A golf club head has a body having a top, a sole, a toe end, a heel end, and a forward wall. The forward wall defines a front opening about which a face support is disposed. The face support receives a face plate, thereby enclosing the front opening of the body. The face support includes portions proximate to the top, the toe end, and the heel end, each portion having a peripheral member extending rearward from the forward wall and a rear member extending inward from the peripheral member, with respect to the front opening. The face support can be combined with a preferred face construction and weight elements to optimize club head performance to help a golfer achieve greater distance and control.

The present invention relates to analyte detection test systems, including test systems for the oral detection of analytes in saliva. The present invention also provides compositions and methods for storing multiple assay tests and compositions and methods for measuring the concentration of analytes in a sample.

The present solution relates to a 2D/3D data projector, which comprises: A data projector, the data projector comprising: at least one micro display having an image to be projected, at least one source unit comprising at least one light source chip and at least one beam forming component, each beam forming component comprising at least one diffractive element, and each source unit being designed to preserve etendue as far as possible, to minimize photon loss, to provide a desired projection shape and a uniform illumination onto the micro display, and a focusing optical unit for projecting the image of the micro display on a target.

A method for manufacturing elongate articles such as baseball bats, paddles, oars, hockey sticks, generic tubing and other articles and articles including molded material molded about a preform. The preferred method includes manufacturing a filament wound preform and reaction injection molding material about the preform to result in a finished article. The preferred baseball bat includes an elongate filament wound preform about which a quantity of urethane foam is molded.

Wood surfaces treated to be inkjet receptive media are disclosed, where the wood surface is treated in a manner that can control the spread of an ink droplet reaching the wood surface to provide a superior image graphic. The treatment uses an image fixing agent comprising an aqueous solution of containing an organo-metallic complex of a hydrophobic fatty acid coordinated with a halogenated trivalent chromium. Veneers, plywoods, and particle boards having faces of lesser value woods can be digitally imaged to give the appearance of higher value woods or other customized inkjet images. Environmental and economic considerations benefit from the use of commonly available wood surfaces to simulate exotic and threatened wood species.

An improved bolt and bolt carrier with integral gas key having an extension nozzle threadedly secured and pinned to the gas key for use with a direct gas operated firearm is provided. The extension nozzle is designed to receive a portion of the host firearms gas operating system. The firing pin retaining pin is oriented so as to expose its widest profile to the firing pins annular flange, increasing its service life. The bolt has a plurality of lugs extending from its forward end and an extractor recess. The extractor recess is constructed to accommodate an enlarged extractor claw while not undercutting the bolt lugs adjacent thereto. The extractor engages approximately 57% more of a seated ammunition cartridges rim as compared to some prior art AR15/M16 type extractors used with automatic firearms chambered in 6.8 SPC. The result is an improved bolt and bolt carrier which provides for increased operational reliability.

The present invention relates to analyte detection test systems, including test systems for the oral detection of analytes in saliva. The present invention also provides compositions and methods for storing multiple assay tests and compositions and methods for measuring the concentration of analytes in a sample.

The Therapeutic Vibrator is a small barrel-shaped container housing a motor and at least one battery for the electric power source. The Therapeutic Vibrator is typically activated by an on/off switch or push-button at one end of the barrel, and when activated, the barrel will vibrate delivering massage to a specific body part. The barrel may comprise two halves that fasten together having recesses and cavities for battery (typically button-cell type), motor, switch wiring, etc. The barrel may then be contained within an appropriate vibrator body made from a material that is soft to the touch. The Therapeutic Vibrator may be used in a sex toy or in any other appropriate massaging device, such as small massagers for hands or faces.

An ultra miniature hearing device for extended wear entirely in the ear canal past the cartilaginous region is provided. The hearing device comprises a microphone and a speaker, each having a respective diaphragm. The speaker and microphone are placed parallel to each other in a single lateral assembly. The microphone and speaker can be arranged such that their diaphragms are orthogonal to one another so that cross coupling of vibrations is minimized, thus reducing internal feedback. Due to the parallel co-placement of the speaker and microphone in the single lateral assembly, the length of the device is substantially shorter than that of prior hearing aid devices. The hearing device is 12 mm or less in length to fit in the bony part of the ear canal for most individuals and is placed within approximately 3 mm from the eardrum.

A battery cover latching assembly (80) is used in a portable electronic device (100). The portable electronic device has a housing (10) and a battery cover (20). The batter cover latching assembly includes a locking hole (24), a button (30), a latching member (40), and a button hole (172). The locking hole is defined in the battery cover. The button has a first inclined portion (362). The latching member includes a bolt portion (42) and a positioning portion (44). One end of the bolt portion is received in the locking hole. The positioning portion has a second inclined portion. The button hole is defined in the housing. The positioning portion and the button are received in the button hole, with the second inclined portion being engaged with the first inclined portion.

A battery cover latching assembly is used in a portable electronic device, which has a battery cover (10) and a housing (40). The battery cover latching assembly (100) includes a latching hole (12) defined in the battery cover, a locking mechanism (300), and a catching portion (42) formed on the housing. The locking mechanism incorporates a button (20). The button has a latching portion (242) disposed on one end thereof. A portion of the button runs through the latching hole of the battery cover and the catching portion of the housing. The latching portion of the button is rotatably engaged with the catching portion of the housing. This arrangement provides a user with both convenient assembly and disassembly operations.

A process for making a pervious concrete comprising a geopolymerized pozzolanic ash. Generally, the process includes mixing a solid aggregate and a geopolymerized pozzolanic ash binder together to form a pervious concrete mixture. Some examples of suitable aggregates comprise recycled carpet, recycled cement, and aggregates of coal-combustion byproducts. The geopolymerized pozzolanic ash binder is made by combining a pozzolanic ash, such as fly ash, with a sufficient amount of an alkaline activator and water to initiate a geopolymerization reaction. The activator solution may contain an alkali metal hydroxide, carbonate, silicate, aluminate, or mixtures thereof. In some aspects, the final concrete forms a solid mass in the form of pavement or a pre-cast concrete shape. The solid mass of concrete may have a void content of between about 5% and about 35%.

A portable electronic device (100) includes a housing (10), a cover (20) and a latch (30). The housing has a latch receiving portion (150) defined at one end thereof The battery cover has a button hole (222) therein and includes at least one tab (224). The latch is fixed in the housing. The latch includes a button member (40) and an elastic member (50). The button member resists/biases the elastic member. The button member is received in the button hole of the battery cover and the latch receiving portion of the housing. The tab engages with the latch receiving portion. The elastic member has at least one clasp (56), which locks with a corresponding tab of the battery cover to the housing. When the elastic member is pressed by the button member, the clasp releases the tab. This release provides a user with convenient disassembly mechanism for the device.

A novel phenanthroline compound is provided which is represented by the general formula [I]:

(wherein R₁, R₂, R₃, R₄, R₅ and R₆ are the same or different and each is selected from a hydrogen atom, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aralkyl group, an unsubstituted or substituted aryl group, an unsubstituted or substituted heterocyclic group, and a halogen atom; and Ar₁ and Ar₂ are the same or different and each is selected from an unsubstituted or substituted fluorenyl group, an unsubstituted or substituted fluoranthenyl group, an unsubstituted or substituted perylenyl group, and an unsubstituted or substituted carbazolyl group). An organic light emitting device using the phenanthroline compound is also provided that has a light output with a high efficiency and a high luminance and has a high long-term durability.

An asymmetric device for regulating blood volume distribution across a patient's atrial septum having a first expandable end region and a second expandable end region. The first expandable end region is transitionable from a contracted delivery state to an expanded deployed state in which the first expandable end region extends into the patient's left atrium and an inlet end of the first expandable end region is in a first plane. The second expandable end region is transitionable from a contracted delivery state to an expanded deployed state in which the second expandable end region extends into the patient's right atrium and an outlet end of the second expandable end region is in a second plane, such that the first plane intersects the second plane. The device further includes a neck region joining the first expandable end region to the second expandable end region, wherein the neck region is sized and shaped for placement in the patient's atrial septum.

A light bulb includes an enclosure, a heat-dissipating unit, and a lamp unit. The enclosure extends along an axis, and defines an inner space therein. The heat-dissipating unit includes a hollow first heat-dissipating element disposed in the inner space, a second heat-dissipating element surrounded by the first heat-dissipating element and extending along the axial direction, and an end heat-dissipating element mounted to the second heat-dissipating element at a distal end thereof. The lamp unit includes a first circuit board disposed at a periphery of the first heat-dissipating element, a second circuit board mounted on the end heat-dissipating element, and a plurality of light-emitting elements mounted on the first and second circuit boards for emitting light beams.

A cooking oven is configured for use with a separate heat source such as a gas grill having one or more burners. The oven includes a housing defining an interior cooking area. A grill engaging element extends from the housing for supporting the housing on the grill over the heat source. The grill engaging element defines a passage leading to an opening in a bottom of the housing, permitting heated air to flow from the heat source into the interior of the oven. The oven has a door providing access to the interior cooking area, as well as a vent leading from a top of the housing. The cooking oven is configured to be located over burners of the grill for cooking food items.

A check valve includes a tubular valve seat frame, a valve seat that is fixedly secured to the inside of the valve seat frame and has a communication hole through which a working fluid flows, and a valve body that is on the working fluid outflow side of the valve seat for opening and closing the valve seat. The valve seat frame, the valve seat, and the valve body are put into one unit so that the check valve has a simple structure and a good assembly property, and can be manufactured at low cost. The check valve is included, whereby a small, durable, and high-performance pump can be provided.

The invention provides a sealing joint strip which is used for heat bonding of a solar battery assembly or a flat-plate solar heat collector with a border. The sealing joint strip is characterized by comprising the following components by mass: 100 parts of thermoplastic polymer elastomer and 0.1 to 10 parts of a silane coupling agent. During utilization, the sealing joint strip can be pressed at a position where the solar battery assembly or the flat-plate solar heat collector and the border joint in the assembling process of a solar module and is then laid aside or treated at a certain temperature for a period of time so as to finish heat bonding, which allows good sealing and fixing effects of the sealing joint strip to be obtained. The application method for the sealing joint strip is characteristic of simpleness, high efficiency and environment friendliness. The sealing joint strip and the application method can also be used for the flat solar heat collector.