Abstract:
Systems and methods that facilitate the creation and harvesting of algae using tufted products. One exemplary tufted product comprises a substrate and tufts tufted through the substrate. The use of a tufted product provides various advantages with respect to the creation and harvesting of algae. Among other things, such products can be configured to improve the amount of algal-growing surface area provided and other growing environment characteristics and to facilitate the harvesting of the algae from the tufted product by facilitating the release of all or most of the algae from attachment to the tufted product.
Abstract:
Connectors for joining adjacent modular floor covering units. The connectors include a base or film and one or more attachment members. As an exemplary use of a connector to install tiles, a first tile is placed on the floor and a connector is positioned so that an attachment member faces upward and attach's to the first tile. One or more other tiles are then positioned adjacent the first tile so that the same or other attachment members of the connector attach to the adjacent tiles. In certain embodiments, an attachment member comprises projections that form a mechanical connection with the undersides of the tiles. For example, a connector may comprise a plastic unit with raised ridges that interact with corresponding indentations on the undersides of the tiles. A connector can also or alternatively form a connection with tiles and/or the underlying floor surface by having a high coefficient of friction.
Abstract:
Connectors for joining adjacent modular floor covering units. Embodiments of the connectors include a film and an adhesive layer coated on one side of the film. The connectors can have a conductive component that allows electrical continuity to be maintained between adjacent tiles. In yet another embodiment, the connectors can be equipped as radio frequency identification tags by including radio frequency transponders. To install tiles using the connectors, a first tile is placed on the floor and a connector is positioned so that the adhesive layer faces upward and does not contact the floor. The connector is typically positioned so that only a portion of the adhesive layer adheres to the underside of the tile, leaving the remainder of the connector extending from the underside of the tile. One or more tiles are then positioned adjacent the first tile so that a portion of the connector adheres to the adjacent tiles. In this way, the connectors span adjacent tile edges. The tiles are assembled on an underlying flooring surface without the need to attach them to the floor surface. Rather, the tiles are linked to each other with the connectors, so that the tiles create a floor covering that "floats" on the underlying floor surface. Additionally, the tiles need not be installed directly on the floor surface. Rather, an underlayment, such as a film or cushion or cushion composite, may be positioned on the floor surface prior to the installation of tiles.
Abstract:
Connectors for joining adjacent modular floor covering units. The connectors include a film and an adhesive layer coated on one side of the film. To install tiles using the connectors, a first tile is placed on the floor and a connector is positioned so that the adhesive layer faces upward and does not contact the floor. The connector is typically positioned so that only a portion of the adhesive layer adheres to the underside of the tile, leaving the remainder of the connector extending from the underside of the tile. Tiles are then positioned adjacent the first tile so that a portion of the connector adheres to the adjacent tiles. In this way, the connectors span adjacent tile edges. The tiles are assembled on a underlying flooring surface without the need to attach them to the floor surface. Rather, the tiles are linked to each other with the connectors, so that the tiles create a floor covering that "floats" on the underlying floor surface.
Abstract:
A carpet web and a method of forming a carpet web having a striped pattern and color scheme that permits carpet tiles cut from the web to be installed without regard to relative tile positions and without visibly disrupting the pattern, but rather maintaining the appearance of a broadloom web. The web pattern includes parallel stripes having varying widths and longitudinal discontinuities. The stripes are formed with at least two colors or two shades of a color. The tiles are positionally ambiguous in that they need not be located on the floor in the same position they occupied in the web for the flooring installation to exhibit the desired uniform appearance. Instead, the tiles may be shuffled and laid in any side-by-side or top-to-bottom orientation (provided that uniform rotational orientation is maintained among the tiles) with respect to adjacent tiles without looking out of place to the ordinary viewer and without emphasizing the modularity of the flooring.
Abstract:
Textile fiber face modular flooring having edges treated to mimic the appearance of grout between installed modules or otherwise provide visual demarcation between modules and methods and apparatus for producing such modules.
Abstract:
Flooring that utilizes sophisticated, self-stabilizing, woven face fabric using relatively heavy "carpet weight" nylon, polyester, PTT or other yarns on modern Jacquard computer controlled looms to produce flat-weave fabrics that are bonded to engineered backing structures. Urethane modified bitumen may be used as a backing layer, and an optional latex precoat may be used on the fabric layer, together with an optional antimicrobial in the precoat.
Abstract:
A device (12) for sensing the respiratory air of a patient. The device includes a venturi tube (18) through which the patient inspires and expires, the tube having a constricted midportion (20). The tube also has an inspiration orifice (48), an expiration orifice (46), and a central orifice therebetween. An air mass flow sensor is positioned in the tube. A flow direction housing (24) is attached to the tube and has a channel (74) with an inspiration portion, an expiration portion, and a central portion therebetween. The housing also has an inspiration opening (68) providing communication between the tube inspiration orifice (88) and an end portion of the inspiration channel away from the central channel portion, an expiration opening (66) providing communication between the tube expiration orifice (88) and an end portion of the expiration channel portion, and a central opening (64) providing communication between the tube central orifice (44) and the central channel portion. This causes a flow of a portion of the respiratory air which the patient inspires to pass through the tube inspiration orifice and flow through the inspiration channel portion to the housing central opening, and a flow of a portion of the respiratory air which the patient expires to pass through the tube expiration channel portion to the housing central opening for return to the venturi tube at the tube constricted portion. A flow direction sensor is positioned in the inspiration channel portion and a flow direction sensor is positioned in the expiration channel portion to produce outputs responsive to the flow of respiratory air through the inspiration and expiration channel portions for determining if the respiratory air flowing through the venturi tube is inspired or expired air.
Abstract:
A method for the combined preparation of a tufted and a bonded carpet material which method comprises bonding the top surface of a fibrous, tufted face surface of the tufted carpet material to a layer of an adhesive material secured to a backing layer to form a sandwich-type material, and splitting the sandwich-type material to provide for tufted carpet material and a bonded carpet material, each having a severed, fibrous face wear surface.
Abstract:
Rectangular carpet modules or "planks" and installation of such planks having the continuous appearance of broadloom carpet or a wide variety of other effective, human scale designs. "Planks" sized approximately 1/4 meter (25 cm) by 1 meter (100 cm) (or approximately 9 inches by 36 inches) are particularly effective.