148 results about "Square foot" patented technology

An Internet search engine ranks search results based on popularity with mobile-device users. Geo-position data from cell phones and other mobile devices are collected into a device geo-position database. The geo-position data is compared to locations of businesses in a business database. When a mobile device's geo-position moves inside a business location, a traffic counter for that business location in the business database is updated. When an Internet user performs a local search, the result set is sorted based on a rank that is at least partially determined by the traffic counters. The popularity-ranked search results indicate which businesses received the most mobile-device visits, an indication of the business's overall popularity. The popularity ranking may be adjusted for business size by dividing the traffic counter by the square footage of the business and sorting the result set based on the mobile-device visits, or repeat visits, per square foot.

An improved paperboard has been bulk enhanced by retaining a substantial portion of bulk-enhanced additives including expandable microspheres in a suitable distribution within the paperboard. The cellulosic paperboard web has an overall fiber weight (w) of at least 40 lbs. / 3000 square feet and at a fiber density of 3, 4.5, 6.5, 7, 8.3, and 9 pounds per 3000 square foot ream at a fiberboard thickness of 0.001 inch respectively, has a GM Taber stiffness of at least about 0.00716 w2.63 grams-centimeter / fiber mat density1.63 pounds per 3000 square foot ream at a fiberboard thickness of 0.001 inch, and a GM tensile stiffness of at least about 1890+24.2 w pounds per inch. The high retention of the bulk enhancing additives is believed to result from the incorporation of suitable retention aids. The resulting paperboard has better GM Taber stiffness values and GM tensile stiffness than prior art paperboards. The paperboard also has increased strain to failure and is able to be formed into suitable paperboard containers without loss of integrity. The resulting containers have increased hold times when they contain hot or cold food or drink.

An improved paperboard has been bulk enhanced by retaining a substantial portion of bulk-enhanced additives including expandable microspheres in a suitable distribution within the paperboard. The cellulosic paperboard web has an overall fiber weight (w) of at least 40 lbs. per 3000 square feet and, at a fiber density of 3, 4.5, 6.5, 7, 8.3, and 9 pounds per 3000 square foot ream at a fiberboard thickness of 0.001 inches, has a GM Taber stiffness of at least about 0.00246 w2.63 grams-centimeter / fiber mat density1.63, and a GM tensile stiffness of at least about 615+13.18 w pounds per inch. The high retention of the bulk enhancing additives is believed to result from the incorporation of suitable retention aids. The resulting paperboard has better GM Taber stiffness values and GM tensile stiffness than prior art paperboards. The paperboard also has increased strain to failure and is able to be formed into suitable paperboard containers without loss of integrity. The resulting containers have increased hold times when they contain hot or cold food or drink.

A fiber optic apparatus for use with components for managing data is disclosed. The fiber optic apparatus comprises fiber optic equipment configured to provide optical connectivity for the transmission of data over optical fiber between at least two components. The fiber optic equipment supports the transmission of at least about 7300 terabytes of data per forty-two (42) U shelf spaces. The at least 7300 terabytes of data is the data managing capacity of the at least two components. One of the at least two components may be a data storage facility, a server or a switch. The fiber optic equipment may be mounted in a fiber optic equipment rack in a data center which may be configured to occupy between about 3.20 and about 3.76 square feet of floor space of the data center.

The present invention relates to a process for the manufacture of a soft thick single-ply tissue, such tissue product having a basis weight of at least about 15 lbs. / 3,000 square foot ream and having low sidedness, said tissue exhibiting a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet ream, the ratio of MD tensile to CD tensile of between 1.00 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a ratio of product cross direction stretch to base sheet cross direction stretch of at least about 1.4, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.

The present invention relates to a soft, thick, single-ply tissue and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs. / 3,000 square foot ream and having low sidedness, said tissue exhibiting: a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.

The present invention relates to a soft, thick, single-ply, printed, absorbent paper product having a Yankee side and an air side wherein the absorbent paper is printed on before or after embossing on the Yankee side, air side, or both sides, said absorbent paper exhibiting a serpentine configuration. This inventions also relates to a process for the manufacture of such absorbent paper product having a basis weight of at least about 12.5 lbs. per 3000 square foot ream and having low sidedness, said tissue exhibiting:a specific total tensile strength of between 40 and 200 grams per 3 inches per pound per 3000 square foot ream, a cross direction specific wet tensile strength of between 2.75 and 20.0 grams per 3 inches per pound per 3000 square foot ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 3.2 grams per inch per percent strain per pound per 3000 square foot ream, a friction deviation of less than 0.250, and a sidedness parameter of less than 0.30. These single-ply, printed, absorbent paper products in the form of unembossed or embossed single-ply bathroom tissue, facial tissue, or napkin are useful articles of commerce. The single-ply absorbent paper products exhibit a printed sidedness value of DELTAE of less than 2.

A gypsum panel suitable for use in constructing a roof deck comprising a set gypsum core having at least about 0.3 pounds of reinforcing fibers per 100 square feet and a density sufficient to provide a board weight of 130 lbs per 100 square feet, where the core sandwiched between and faced with coated non-woven fibrous mats, wherein the free surface of each mat is pre-coated with a combination of a mineral pigment and a polymer latex adhesive binder applied to the mat surfaces as an aqueous coating composition.

The present invention relates to a soft, thick, single-ply tissue having a serpentine configuration and to a process for the manufacture of such tissue product having a basis weight of at least about 15 lbs. / 3,000 square foot ream and having low sidedness, said tissue exhibiting:a specific total tensile strength of between 40 and 75 grams per 3 inches per pound per 3000 square feet ream, a cross direction specific wet tensile strength of between 2.75 and 7.5 grams per 3 inches per pound per 3000 square feet ream, the ratio of MD tensile to CD tensile of between 1.25 and 2.75, a specific geometric mean tensile stiffness of between 0.5 and 1.2 grams per inch per percent strain per pound per 3000 square feet ream, a friction deviation of less than 0.225, and a sidedness parameter of less than 0.275.

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous / ferric anode reaction. In general, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the efficient and cost-effective operation of a copper electrowinning system employing the ferrous / ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A / m2), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advantageous.

A ballistic panel is provided for being incorporated into a lightweight soft body-armor product adapted for covering an area of the body. The ballistic panel includes an assembly of woven fabric plies with warp and fill yarns formed of bundled aramid fibers. The plies have a collective areal density of no greater than 1.30 pounds per square foot, and a V50 ballistic limit of no less than 1925 feet per second using a .22 caliber, 17 grain FSP at 0 degrees obliquity.

High flow, low-pressure ultrafiltration or microfiltration spiral wound membrane cartridges are used in filtration of liquid feedstocks having high suspended solids. Applications may utilize either vacuum or pumping for transmembrane drive pressure (TMP), and gas may optionally be bubbled up through the cartridges with certain feedstocks. Water permeate flux rates as high as 90 gallons per square foot per day (gfd) can be obtained at TMPs below 5 pounds per square inch. By locating each spiral wound cartridge in its own casing and supplying liquid feedstock to an open lower end of the casing, as opposed to submerging such cartridges in a tank filled with feedstock, overall low pressure performance is greatly improved. High permeate flow can be maintained for long periods of time between shutdowns for intensive cleaning. TMP is gradually increased to maintain a substantially constant rate of permeate discharge until a target is reached, indicative of solids accumulation on the membrane surface to an undesirable extent; then backflushing is effected for a short time. Discarding the hold-up volume of feedstock in the cartridge, the backflushing fluid and dislodged solids, allows production to be promptly resumed with fresh feedstock at performance at near original levels.

A system and method for collective-based property valuation with a mobile client provides a user interface to a device that allows parties viewing a property to enter estimates of the property's value. Fields for a number of property attributes allow viewers to select scaled values indicative of supply and demand in a subject market. The values are used to create new cost-per-square foot and cost-basis valuations of the subject property. The accuracy of the home valuation improves with each additional valuation, resulting in valuations that truly reflect supply and demand in the subject market. Separate values for house, lot, estimated sales price and current market value are calculated and displayed. A past sales price engine estimates a current sales price based on a past sales price and the average appreciation for a neighborhood. A user interface feature allows different users to enter rating data in succession.

A tough building system and buildings and associated accessories which make such structures more versatile. Support accessories can include a fiber-reinforced polymeric composite support bracket, adapted to be mounted to a top of a foundation wall, and to support an edge of a slab of concrete adjacent the top of the foundation wall, or to support brick fascia, or to support ends of floor joists adjacent an inner surface of said foundation wall. Support accessories can also include a load-bearing, and load distributing support pad, adapted to be used as an interface support / footer between an underlying natural base and an overlying constructed structure. The support pad has a plurality of fiber-reinforced polymeric layers, optionally stacked one on top of the other. The pad has a load bearing capacity of at least 1000 pounds per square foot. The support pad may be a pultruded product.

A low-temperature / cryogenic liquid-storage structure has an inner tank liner made of conventional low-temperature / cryogenic tank-quality plates with structural members that provide flexibility. The plates are mounted on connectors that accommodate movement of the liner with respect to the bearing wall. The plates have a thickness of between 1 / 16″ and ½″ and a surface area of at least 100 square feet. The structural members are conventional construction materials that have a wall thickness of more than 1 / 16″. Load-bearing insulation extends between the outer surface of the inner tank liner and the inner surface of an outer bearing wall that is impervious to vapor.

A prefabricated fireproof bulkhead section for a ship. The fireproof bulkhead section includes an inner core layer made of an incombustible fiber material and having a first side for receiving a first composite and a second side for receiving a second composite for forming a fireproof bulkhead section. The first composite includes a first metal layer formed of a metal sheet, a first ceramic layer formed of ceramic fibers, a first foil layer formed of a metal foil sheet and a first outer layer formed of an intumescent, fire-retardant coating on a fiberglass sheet; and the second composite includes a second metal layer formed of a metal sheet, a second ceramic layer formed of ceramic fibers, a second foil layer formed of a metal foil sheet and a second outer layer formed of an intumescent, fire-retardant coating on a fiberglass sheet. The fireproof bulkhead section further includes connecting means in the form of section locking joints for connecting and interlocking two or more of fireproof bulkhead sections together. The fireproof bulkhead section provides protection for at least 60 minutes at a temperature of up to 1700° F.; and has a weight of less than 4.5 lbs per square foot. An interlocking fireproof bulkhead paneling system for supporting a plurality of fireproof bulkhead sections for a ship's bulkhead. The interlocking fireproof paneling bulkhead system includes a plurality of fireproof bulkhead sections each having an upper edge and a lower edge; a plurality of connected ceiling track members for slidably receiving the upper edges of the plurality of fireproof bulkhead sections; and a plurality of connected floor track members for slidably receiving the lower edges of the plurality of fireproof bulkhead sections. Each of the fireproof sections includes connecting means in the form of section locking joints for connecting and interlocking two or more of the fireproof bulkhead sections together. Each of the fireproof bulkhead sections includes an inner core layer made of an incombustible fiber material and having a first side for receiving a first composite and a second side for receiving a second composite for forming said fireproof bulkhead section. The first composite includes a first metal layer formed of a metal sheet, a first ceramic layer formed of ceramic fibers, a first foil layer formed of a metal foil sheet and a first outer layer formed of an intumescent, fire-retardant coating on a fiberglass sheet; and the second composite includes a second metal layer formed of a metal sheet, a second ceramic layer formed of ceramic fibers, a second foil layer formed of a metal foil sheet and a second outer layer formed of an intumescent, fire-retardant coating on a fiberglass sheet. The interlocking fireproof bulkhead paneling system provides protection for at least 60 minutes at a temperature of up to 1700° F; and has a weight of less than 4.5 lbs per square foot.

A method for forming a pultruded part includes collating reinforcing fibers by providing a first layer of reinforcing rovings extending in the longitudinal pultrusion direction, applying onto the first layer an intermediate layer of reinforcing fibers at least some of which include at least portions thereof which extend in the transverse direction and covering the intermediate layer with a second layer of rovings extending in the longitudinal direction. Alternatively the transverse fiber layer is formed on the inside surface of a hollow part. To the collated fibers is applied a urethane resin so as to permeate through the layers and the materials are passed through a die to form a thermo-set cross-linked poly-urethane. The transverse layer or layers are relatively thin having a weight less than or equal to 0.5 ounces per square foot and more preferably as low as 0.25 ounces or 0.1 ounces.

A process and system for removing heavy metals, fluoride, silica and other contaminants from large volumes of wastewater is disclosed. In the process, a wastewater stream containing the contaminant is treated with a chemical coagulant to create a particle having a diameter greater than 5 microns. Treated wastewater is passed through a microfiltration membrane which physically separates the metal contaminant particle from the wastewater. Commercially available microfiltration membranes having a pore size from 0.5 micron to 5 microns may be used. The treated wastewater flow rate through the microfiltration membranes can range from 700 gallons per square foot of membrane per day ("GFD") to 1500 GFD. Solids are removed from the membrane surface by periodically backflushing the micro-filtration membranes and draining the filtration vessel within which the membranes are located. The dislodged solid material within the filtration vessel is flushed into a holding tank for further processing of the solids.

A method of producing hydrogen from sewage sludge comprising: (a) introducing sewage sludge into an anaerobic digester containing a multiplicity of interfacing pairs of cathodes and anodes spaced from 0.5 to 1.5 inches from one another; (b) maintaining anaerobic conditions within said digester to cause the digestion of said sewage sludge; (c) applying an electric potential between said cathodes and anodes to create a current density of from 0.25 to 2.0 amps / square foot at said electrodes in order to suppress the formation of methane and enhance the production of hydrogen; and collecting gas containing hydrogen produced from said digester.

A modular lighting system for lighting a work area is disclosed. The system includes a power supply with power outlets for powering LED fixtures. The power supply preferably operates at or below a fixed power output level, such as to illuminate the work area using less than 0.2 Watts per square foot of energy. The lighting system also includes an occupancy sensor and / or a light level sensor for controlling lighting levels in the work area in response to detection of a person, ambient light levels and / or a combination thereof. The lighting system can also include computer unit with a micro-processor and a memory unit for running software or firmware the executes lighting programs, stores light usage histories and / or provides system reports to a remote computer by a wireless means and / or over a computer network.

A geosynthetic tufted drain barrier (GTDB) for preventing vertical migration of fluids. On a substantially impermeable woven or non-woven continuous layer is disposed a membrane. The tensile strength of the impermeable layer is at least 5 lbs / lineal ft (3.0 kg / lineal m). The permeability of the membrane is no greater than 10−4 cm / sec. Tufted tensile elements are attached to the membrane, each one being attached to the membrane at a density of at least 25 tufted tensile elements per square foot (30 square cm). The tufted tensile elements are formed in rows and are disposed at a density of at least four rows per square foot (30 square cm). Infill material can be introduced to the tufted tensile elements. The drain barrier may be constructed with integrated letters, logos, and signage and one or more colors.

A compact mobile crushing and screening apparatus for disintegrating solid feedstock and further processing the disintegrated feedstock comprises a hopper, a feedstock feeder system, a pre-screen (aka dirt screen), a crushing mechanism with a feed inlet opening, at least one side conveyor, a discharge conveyor having a front elevating section, a magnet and a screening / separator all on one track mounted framework that is radio remote controlled. The track mounted framework of the compact mobile crushing and screening apparatus provides the skeleton of the entire apparatus. The compact mobile crushing and screening apparatus comprises a crusher frame that carries the crushing mechanism and is integrated into the framework, which is configured and disposed to support and strengthen the crusher frame and thus reduces the mass and overall weight of the crusher frame. The feed inlet opening is at least about 3.5 square feet, the weight of the overall apparatus is no more than about twenty tons and the ratio of the area of the feed inlet opening in square feet to the overall weight of the apparatus in tons is at least about 0.25.

The present invention relates, generally, to a method and apparatus for electrowinning metals, and more particularly to a method and apparatus for copper electrowinning using the ferrous / ferric anode reaction and a flow-through anode, such as, for example, a dimensionally stable carbon, carbon composite, metal-graphite, or stainless steel anode. In general, the use of a flow-through anode—coupled with an effective electrolyte circulation system—enables the efficient and cost-effective operation of a copper electrowinning system employing the ferrous / ferric anode reaction at a total cell voltage of less than about 1.5 V and at current densities of greater than about 26 Amps per square foot (about 280 A / m2), and reduces acid mist generation. Furthermore, the use of such a system permits the use of low ferrous iron concentrations and optimized electrolyte flow rates as compared to prior art systems while producing high quality, commercially saleable product (i.e., LME Grade A copper cathode or equivalent), which is advantageous.

The present invention builds Home Data Index (HDI) models. One driving force behind this HDI initiative is that no one model or measure can truly capture the widely dynamic movement of home prices. Even within a small geographical area, such as a ZIP code, there is significant variation in property sale types, sale frequencies and sale values. To better describe these variations, the present invention presents a suite of paired sales and price per square foot index models built around an array of property transaction characteristics. These HDI models expand on the usage and understanding of traditional home price indices (HPIs) by implementing a multidimensional index comprised of four main dimensions: geography; time frames; value range; and property sales type. Several layers exist within each dimension, allowing for more than 300 different index model perspectives for a given property address. For each permutation among the layers of the four main dimensions, a model is constructed with an associated confidence score that reflects the statistical relevance of each estimate.

A sandwich panel includes a honeycomb core of a plurality of cells. A first skin is adhered to a first surface of the honeycomb core with an adhesive. A second skin is adhered to a second surface of the honeycomb core with the adhesive. The plurality of cells extend longitudinally between the first and second skins. The first and second skins adhere to the honeycomb core to form a sandwich panel having a surface area of at least 2.25 square feet. A foam fill is disposed within the cells of the honeycomb core. The foam fill and the honeycomb core define a first gap region proximate to the first skin and a second gap region proximate to the second skin.