摘要:
The invention relates to an electrolysis installation comprising at least two rows of electrodes that are immersed at least in part in a liquid electrolyte giving off one or more gaseous species of corrosive nature at the electrodes, at least one separation membrane being disposed between two adjacent rows of electrodes. Each membrane is constituted by carbon fiber reinforcement stiffened by a carbon matrix and presents porous portion that is permeable to ions and impermeable to the or each gaseous species, given off at the electrolytes.
摘要:
A purchase monitoring device, to be used by a shopper in a self-service store having items with bar codes which identify the item and its price, the device including primarily a portable handset having a bar code scanner which enables pricing and identification data of a selected item to be displayed on an LED display of the handset. Through selective use of a price check button, a purchase button, and a return button, the price of the item may be checked, added to a running total of purchase items, or removed from a running total of purchased items. During scanning of an item, a three headed roller selectively designates the item as a purchase item or as a non-purchase item by marking the bar code with either a red or a green line, so the purchase items can be quickly verified. Alternatively, the roller may change the state of a polarized metallic strip included with the bar code. The list of purchase items is stored within the handset for subsequent transfer to a data reception register of the store for payment.
摘要:
A packing structure according to the invention for a fluid contacting column forms a volume comprising an ordered arrangement of bundles of tubes of diameter ranging between 5 and 50 mm. The walls of the tubes comprise orifices which promote circulation and mixes fluids in the structure. The orifices are inscribed in rectangles whose sides range between 2 and 45 mm, and each one of the orifices extends over a surface area greater than 2 mm2.
摘要:
Electrode containers and associated methods are provided. In one embodiment, an electrode container includes sides and a top, and the top includes an opening adapted to receive a rod of an electrode. A plurality of flexible members are interconnected about the perimeter of the opening, wherein at least some of the plurality of flexible members overlap with one another. In one embodiment, a method includes removing an electrode from a metal electrolysis cell and placing the electrode into a container, where the placing step includes the steps of engaging at least one lever of a top flap of the container with a surface of the electrode and, concomitant to the engaging step, moving the top flap from a first position to a second position.
摘要:
Under the present invention, when a request for a web page is received from a client on a server, the web page is built and analyzed for cacheablity. If the web page is cacheable, an entity tag is generated. The entity tag generally identifies the various sources of dynamic content in the web page, and includes cacheability flags and time values associated with the dependencies. The entity tag is sent to the client with the web page where it is stored in local cache memory. If a subsequent request for the same web page is issued from the client, the request is accompanied with the entity tag (e.g., in a header). The entity tag is decoded and analyzed by the server to determine whether the cached web page is still valid.
摘要:
A purchase item security and information tag apparatus for attachment to a purchase item in a store includes a tag body, a purchase item information display mechanism for retaining item data in machine readable form, and a tag engagement security mechanism including an elongate item engaging member which spoils the item with dye if cut away from the item by a customer. The tag engagement security mechanism preferably includes a tubular item engaging member containing a dye, so that the dye escapes and spoils the purchase item if cut by a customer without prior deactivation of the tag engagement security mechanism. The dye is preferably contained at a pressure greater than atmospheric to cause the dye to spatter and spray onto the purchase item. An alternative purchase item security and information tag apparatus for attachment to a purchase item in a store includes a tag body, a purchase item information display mechanism for retaining item data in machine readable form, a tag engagement security mechanism including an elongate item engaging member which sounds an alarm if cut away from the item by a customer, where the tag engagement security mechanism includes an electrically conductive item engaging member configured as a loop for extending through part of a purchase item forming part of an electric circuit including an alarm mechanism and a power source, so that opening the circuit prior to deactivation sounds the alarm mechanism.
摘要:
An automatic bulk self-checkout apparatus includes several purchase items, each item being marked with a bar code containing item price information, a purchase item holder for retaining purchase items as they are gathered and transported to a checkout area of a store, a bar code scanner assembly for reading the bar codes while the items are inside the item holder and for sending information contained in the bar codes as signals, a bar code processing assembly for receiving and converting the signals into numerical price data and for totalling prices of the items within the item holder. The apparatus preferably includes a tunnel structure having an entry port, an exit port, a top wall and two opposing side walls and a floor, and sized to receive through the ports the item holder, where the scanner assembly is located within the tunnel structure and oriented to scan the bar codes on the items within the item holder. The apparatus also preferably includes a conveyor belt for automatically transporting the item holder through the tunnel structure from the entry port to the exit port. The apparatus may additionally include a first sensor assembly for sensing an item holder placed at the entry port and activating the conveyor belt for a prescribed time duration. A method of checking out purchase items includes the steps of placing the items into the purchase item holder, reading the bar codes with the scanner assembly while the items remain in the holder, and totaling prices indicated in the bar codes.
摘要:
The invention relates to an electrolysis installation comprising at least two rows of electrodes that are immersed at least in part in a liquid electrolyte giving off one or more gaseous species of corrosive nature at the electrodes, at least one separation membrane being disposed between two adjacent rows of electrodes. Each membrane is constituted by carbon fiber reinforcement stiffened by a carbon matrix and presents porous portion that is permeable to ions and impermeable to the or each gaseous species, given off at the electrolytes.
摘要:
A multi-compartmented storage and dispensing container is disclosed. In the preferred embodiment, the larger outer bottle surrounds and is attached to an inner compartment or chamber that, in the preferred embodiment, is a generally cylindrical enclosure having helically oriented scores or striations. This cylindrical inner enclosure is attached at its base to the outer bottle and is engaged and broken open by the closure assembly. The closure assembly consists of a threaded cap attached to an inner enclosure engagement arm. A removable security ring is initially located between the bottom of the threaded cap and the outer bottle shoulder. After this ring is removed, the user tightens the cap all the way down, bringing the inner enclosure engagement arm into contact with anchored cylindrical inner enclosure. As the cap is twisted, the inner enclosure breaks along the scored lines due to the torque, and the material contained within the inner enclosure is released into the outer bottle. The user may then shake or otherwise agitate the outer bottle to mix the different materials together.
摘要:
A customer checkout apparatus for recording the prices of purchase items where the purchase items each have an item information display mechanism for storing purchase item data including purchase item price in machine readable form includes an item check-out vessel for receiving each of the purchase items, and for checking each purchase item, the vessel including a vessel wall and an item receiving door for opening to admit a given purchase item into the vessel and for closing to secure the item against tampering during item check-out, a purchase item display mechanism scanning device for reading item data from the information display mechanism on each item upon closing of the item receiving door, and a microprocessor for receiving and processing and storing data scanned by the display mechanism scanning device. A method of using the apparatus is also provided, and includes the steps of placing the purchase item and the attached information display mechanism into the check-out vessel, closing the item receiving door, scanning the information display mechanism, and releasing the item from the vessel.