摘要:
Substituted terephthalaldehydes are produced by the vapor phase oxidation of similarly substituted p-xylenes in the presence of a catalyst mixture of tungsten in the form of an oxide or silicotungstic acid, molybdenum in the form of an oxide and optionally bismuth in the form of an oxide.
摘要:
An electromagnetic energy pulse-echo system combined with a data processing unit and a memory storing the locations of a number of fixed echo reflectors relative to a waterway so that the pulse-echo system operating from a boat can register the echo reflectors and positions in the waterway can be calculated by the data processing unit.
摘要:
A pick-proof lock system and method for locking a door, window, or other closure which includes a first movable barrier such as a door mounted to be closed into a second related barrier such as a frame. This pick-proof lock system comprises coded locking means remotely located from the public region outside of the closure barriers with a transportable key movable along a route from the public region into the remote locking means and carrier means for moving the key along said route which may include multiple intersecting path segments with blocking means preventing access from the public region to the remotely located coded locking means, the carrier means acting cooperatively with said barrier means for moving the key long said route. The pick-proof method positions the coded locking means such as a tumbler assembly remote from the public region and places blocking means between the public region and the tumbler assembly, with the key being a transportable member carried away from the user's reach, passing along a route through the blocking means so as to enter and unlock the tumbler assembly, which at all times remains inaccessible to the public region. Movable carrier means are provided to transport the key along the route to the tumbler assembly while by-passing the blocking means. This route may be divided into a first path extending from the public region into the lock mechanism with a second path intersecting the first and extending offset into operative engagement with the tumbler assembly.
摘要:
Herein includes an offset printing apparatus for transferring and optionally fixing a phase change ink onto a print medium including a) a phase change ink application component for applying a phase change ink in a phase change ink image to an imaging member; b) an imaging member for accepting, transferring and optionally fixing the phase change ink image to the print medium, the imaging member having i) an imaging substrate, and thereover ii) an outer coating with a urethane and a conductive salt; and c) a release agent management system for supplying a release agent to the imaging member, wherein an amount of release agent needed for transfer and optionally fixing the phase change ink image is reduced.
摘要:
A printing apparatus, including a) a printing station with at least one printhead for applying phase-change ink to a substrate in a phase-change ink image, and b) an ink spreading station including a heated or unheated ink spreading member and a back-up pressure member in pressure contact with the ink spreading member, and wherein a nip is formed between the ink spreading member and the back-up pressure member for spreading the phase-change ink image on the substrate, wherein said substrate is passed through the nip, and wherein the pressure member includes i) a substrate, and ii) an outer coating having a polymer matrix with an oleophobic resin, a fluoropolymer lubricant, and a first additive.
摘要:
An offset printing apparatus for transferring a phase change ink onto a print medium having a phase change ink component for applying a phase change ink in a phase change ink image; an imaging member for accepting the phase change ink image from the phase change ink component, and transferring the phase change ink image from the imaging member to the print medium, and a transfix pressure member positioned in association with the imaging member, wherein the print medium passes through a nip formed between the imaging member and the transfix pressure member, and wherein the imaging member exerts pressure on the transfix pressure member so as to transfer and fuse the phase change ink image from the imaging member to the print medium, and further wherein the transfix pressure member includes a substrate; and an outer layer having a modulus of from about 8 to about 300 MPa, a thickness of from about 0.3 to about 10 mm, and wherein the pressure exerted at the nip is from about 750 to about 4,000 psi.
摘要:
An inline backwash, flushing filter assembly comprising a header assembly, a rotatable valve assembly, and a filter element assembly disposed within a filter housing assembly. In operation, the controller moves the turn knob of the rotatable valve assembly a one-quarter turn which results in the reversal of fluid flow through the assembly to periodically back flush the filter utilizing fluid from the system inlet. Debris removed from the filter element during the backwash process are immediately discharged from the system through a drain port. Simultaneously, the hydraulic shearing mechanism of the backwash process dislodges and drains debris which may have accumulated on the screen and at the bottom of the lower filter assembly during normal filter operations. The controller then returns the filter assembly to filtration operation by a reverse one-quarter turn of the turn knob of the rotatable valve assembly.
摘要:
An imaging surface field reconditioning method and apparatus are provided for reconditioning, in the field, a marking material control pattern on an imaging surface of in an image producing machine. The imaging surface field reconditioning apparatus for practicing the method includes (a) an abrading device including an abrasive member having an abrasive surface; (b) a drive assembly for moving the imaging surface of the imaging member along a first plane; (b) a first moving device for moving the abrading surface of the abrading member into contact with the imaging surface for forming a surface reconditioning nip therewith; and (d) at least a second moving device for simultaneously moving the abrading surface along the first plane, and translating the abrading surface back and forth against said imaging surface along a second plane, for reconditioning the marking material control pattern on the imaging surface, thereby preventing marking material drawback during subsequent image formation, and thereby improving imaging quality.
摘要:
This invention provides an apparatus and a method of filtering a MM Wavelength Division Multiplexed (WDM) signal operating in the 1548 to 1560 nm region. The wavelengths of the MM are spaced 1-12 nm apart and centered about 1558 nm. The adjustable filters for tuning MM optical signals encompass a carousel and a mechanical system for positioning one of the filters in the path of the MM WDM signal and tracking the signal. An algorithm controls the mechanical system for tracking and positioning one of the filters in the path of the MM WDM signal. The filter in position filters one of a plurality of wavelengths and tunes the filter to compensate for temperature changes.
摘要:
A process for preparing dibromonitro-alcohols, and mixtures thereof with bromonitro-alcohols, is disclosed in which dibromonitromethane, and optionally bromonitroethane, is reacted with a C.sub.1 -C.sub.3 aldehyde in aqueous solution at an acid pH, preferably between about 4.0 and about 7.0. An aqueous solution of the aldehyde is prepared and the pH adjusted to the desired acid range by addition of sodium bicarbonate, and the dibromonitromethane, which may include bromonitromethane, is added thereto. The dibromonitro-alcohol product is isolated as a separate phase from the reaction mixture.