摘要:
An inflatable life preserver, capable of being in an inflated state and an uninflated state, is disclosed. The life preserver includes a structural overshell which defines the size and shape of the life preserver in the inflated state and a gas retention bladder fitted within the overshell. The overshell bears the expansion force of a gas within the bladder in the inflated state. The overshell defines inflatable side portions which are confined to sides of at least a portion of a chest area of a wearer, when the life preserver is in an uninflated state, and, which extend laterally over the chest area of the wearer, when the life preserver is in an inflated state.
摘要:
An inflatable life preserver, capable of being in an inflated state and an uninflated state, is disclosed. The life preserver includes a structural overshell which defines the size and shape of the life preserver in the inflated state and a gas retention bladder fitted within the overshell. The overshell bears the expansion force of a gas within the bladder in the inflated state. The overshell defines inflatable side portions which are confined to sides of at least a portion of a chest area of a wearer, when the life preserver is in an uninflated state, and, which extend laterally over the chest area of the wearer, when the life preserver is in an inflated state.
摘要:
The present invention relates to a a security bollard and, in particular, to a security bollard designed to be used as a protective measure to be placed in front of shop fronts and Automatic Teller Machines (ATMs) that may be subjected to ramming by vehicles. The bollard includes a first upright hollow member having an outer wall defining a chamber, and a plurality of vertical longitudinal jamming rods disposed inside the chamber. Each jamming rod has associated therewith a biasing means for biasing the members in a longitudinal direction so as to act like a disk brake on cutting implements attempting to cut through the jamming rods, and to also close the gap created by the cut should the cutting implement be retrieved and cutting attempted again.
摘要:
A nanostructure film, comprising at least one interconnected network of nanostructures, wherein the nanostructure film is optically transparent and electrically conductive. A method for improving the optoelectronic properties of a nanostructure film, comprising: forming a nanostructure film having a thickness that, if uniform, would result in a first optical transparency and a first sheet resistance that are lower than desired; and patterning holes in the nanostructure film, such that a desired higher second optical transparency and a second sheet resistance are achieved. A method for depositing a nanostructure film on a rigid substrate comprises: depositing the nanostructure film on a flexible substrate; and transferring the nanostructure film from the flexible substrate to a rigid substrate, wherein the flexible substrate comprises at least one of a release liner and a heat- or chemical-sensitive adhesive layer.
摘要:
A bonded, direct fixation fastener as supportive structure for a rail on a railroad tie or bed comprising: a rail plate, wherein the rail plate has a generally horizontal center portion having a lower face and an upper face and defining a rail plate horizontal plane, and wherein the rail plate center portion extends at a first angle from opposing sides as rail plate tongues above the rail plate horizontal plane, the rail plate having a rail securing device; a bed plate comprising a generally horizontal center portion, an upper bed plate face defining a bed plate horizontal plane, and a pair of opposing bed plate tongues extending from opposing sides of the bed plate horizontal center portion disposed at a second angle above the bed plate horizontal plane; a horizontal elastomeric portion of relatively lower durometer hardness encapsulating at least a portion of the bed plate and at least a portion of the rail plate; and vertical elastomeric portions of relatively higher durometer hardness encapsulating at least a portion of each bed plate tongue and at least a portion of each rail plate tongue, and surrounding the upper face of the rail plate; and wherein each vertical elastomeric portion is physically continuous with the horizontal elastomeric portion.
摘要:
This invention is in the field of medical devices. Specifically, the present invention provides portable medical devices that allow real-time detection of analytes from a biological fluid. The methods and devices are particularly useful for providing point-of-care testing for a variety of medical applications. In particular, the medical device reduces interference with an optical signal which is indicative of the presence of an analyte in a bodily sample.
摘要:
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and chemical properties including applications in antennas, electromagnetic and electro-optic devices, and high-toughness materials. Other compositions of matter and articles of manufacture are disclosed, including polymer-coated and polymer wrapped single-wall nanotubes (SWNTs), small ropes of polymer-coated and polymer-wrapped SWNTs and materials comprising same. This composition provides one embodiment of the SWNT conducting-rod composite mentioned above, and also enables creation of high-concentration suspensions of SWNTs and compatibilization of SWNTs with polymeric matrices in composite materials. This solubilization and compatibilization, in turn, enables chemical manipulation of SWNT and production of composite fibers, films, and solids comprising SWNTs.
摘要:
A bonded fastener for a railway rail comprising: top and bottom generally horizontal plates bonded and separated by an insulating material wherein the top plate defines a rail bed; a plurality of clip housings wherein each clip housing houses part of a hold-down clip for attaching the rail to the bonded fastener; a plurality of anchor assembly areas wherein each anchor assembly area defines an opening through the bonded fastener for receiving an attachment device for attaching the fastener to a supporting surface; and one or more generally vertical barriers comprising part of the bonded fastener. Further, a first generally horizontal barrier may extend from the bonded fastener underneath each of the clip housings, and a second generally horizontal barrier may extend from the rail bed underneath the rail on each side of the bonded fastener.
摘要:
A polymer membrane is formed around nanotubes by applying either droplets or a thin film of a suspension of the nanotubes over a layer of a solution of the polymer, the suspending medium for the nanotubes and the solvent(s) for the polymer selected such that the suspending agent will evaporate while it is migrating into and dispersing in the solvent. When the polymer is then permitted to coagulate around the nanotubes, the coagulated polymer will fix the orientations of the nanotubes and a high proportion of the nanotubes will protrude from both sides of the resulting membrane to provide through-passages through the membrane.