Abstract:
A microfluidic pump has an outer housing such as a capillary tube, a nanotube, and an ionic fluid or alcohol. The nanotube is placed inside the capillary tube, and the capillary tube is filled with the ionic fluid or alcohol. A voltage source is connected to the nanotube, and upon application of a voltage to the nanotube, the ionic fluid or alcohol is pumped through the capillary tube.
Abstract:
The described systems and methods are directed at persisting data between web pages. A server receives object-related data associated with a first web page and a request for posting to a second web page from a client. The object-related data includes information about the objects in the first web page. Instances of the objects associated with the first web page are reconstructed based, at least in part, on the object-related data. The server generates rendering data of the second web page based, at least in part, on the reconstructed object instances. In this manner, the object-related data is allowed to persist from the first web page to the second web page.
Abstract:
A symmetric objects database contains a plurality of data cells. Each data cell has a plurality of data fields which are the same or similar for each of the data cells. The data fields include an identifier field, name field, value field, signature field, classes field, children field, versions field, user ID field, date field, and control flag field. A first data cell is related or linked to a second data cell which is higher in database hierarchy than the first data cell. The linking is done through the classes field within the first data cell which contains the identifier of the second data cell. A third data cell is related or linked to a fourth data cell which is lower in database hierarchy than the second data cell. The linking is accomplished through the children field which contains the identifier of the fourth data cell. A versions field keeps track of historical changes to the database. The later version of a data cell links to the identifier of an earlier version of the data cell. The data fields within each data cell provide for a schema which is integrated into the data structure.
Abstract:
A memory metal expands through the use of a catalyst and a fuel-oxidizer mixture. The catalyst can be placed directly onto the surface of the memory metal, or it can just be in the proximity of the metal. The fuel-oxidizer mixture similarly can be placed on the surface of the metal or just near the metal. The oxidation of the fuel can be initiated by a spark, heat, or some other source, and the heat from the exothermic reaction raises the temperature of and causes the expansion of the memory metal.
Abstract:
Color printing characterized by high color density and color contrast is provided by jetting an ink composition composed of an optically clear, phase change base material and a primary subtractive color dye which is soluble in the base material onto the surface of a printing medium to form a multiplicity of closely spaced color dots or spots arranged to define a line or character on the medium. Each dot consists of one or more well defined, optically clear, semitransparent color layers each of which has a different color so that the observed color of each dot is a true subtractive mixture of the colors in the layers. Specific ink compositions are also disclosed.
Abstract:
A sheet-feed mechanism (10) for a rotary print head (12) includes a track (16) that defines a paper path in the form of a partial circular annulus. Belts (40 and 42) carry tabs (36, 38, 72, and 74) that support the lower end of a paper sheet, and movement of the belt causes the tabs to raise the paper sheet as it is printed. A guide structure (60) keeps the paper sheet in the proper cylindrical shape until it has left the track, at which time a curved portion (67) of a cam post (66) urges the paper out so that it pops open to a flat shape and falls into a tray (70).
Abstract:
In an automatic card shuffler, cards already played are placed in first and second trays. Sensors arranged in the trays detect the presence of cards to automatically initiate a shuffling operation. The cards in the trays pass through the card mixer, where they are interweaved in a random fashion and deposited in a compartment arranged beneath the mixer. A carriage carrying a card ejector is reciprocated up and down by a reversible linear drive, activated when the shuffling operation begins and terminated substantially upon termination of the shuffling operation to locate the card ejector at a randomly determined position along the card receiving stack. If the stack of cards in said compartment reaches at least a minimum predetermined height, detected by a sensor arranged within the compartment, the card ejector is moved into the compartment to eject a group of cards, preferably of the order of two decks. The aforesaid ejected group of cards may then be placed in a dealing shoe. The random selection of a group of cards within the card compartment may be controlled by a solid state electronic random generator comprised of either discrete solid state components or a microprocessor. In another alternative embodiment, the randomly ejected group of cards is automatically transferred to the dealing shoe.
Abstract:
A drive assembly for printer carriages and the like comprised of a closed looped metallic tape entrained about a drive and a driven pulley and being moved at a substantially constant rate. The carriage assembly reciprocally slides along guide rods for linear movement in a forward and reverse direction and is provided with guideways for enabling substantially unimpeded movement of the upper and lower runs respectively of said closed looped tape. Solenoid operated jam cleat assemblies are respectively engageable with the upper and lower runs of said closed looped tape in a mutually exclusive fashion. Connecting rod means is provided to assure engagement of only one of the jam cleats with the associated run of the closed loop tape to prevent stopping or jamming of the tape and to assist in the release of the deactivated jam cleat. By selective energization of the pair of solenoid assemblies, the carriage assembly may be moved in either the forward or reverse direction at any given instant of time.A dot matrix print head may be mounted upon the reciprocating carriage assembly which by appropriate utilization of printer electronics, may be utilized for either unidirectional or bidirectional printer systems.