摘要:
A method and apparatus for serially removing the forwardmost plate from a stack of plates comprises rotating a cylindrical carrier having a chordal segment defined on its periphery with the stack of plates oriented so that the forwardmost plate is tangentially adjacent to the periphery of the carrier. A vacuum source draws air into an air inlet located on the chordal segment thereby creating a low pressure area. Accordingly as the chordal segment becomes parallel with the stack the low pressure causes the forwardmost plate to be drawn into contact with the chordal segment and thus block the air inlet. The plate continues to rotate with the carrier until it reaches a desired location where an air valve causes the vacuum to be temporarily discontinued thus allowing the plate to drop free of the carrier. An advance mechanism causes the stack to be advanced one plate thickness during each rotation of the carrier to position the next plate into contact with the carrier after each plate has been removed.
摘要:
Method and apparatus for removing processing oil from thin sheets of microporous plastic material is comprised of a tank having a liquid zone in its bottom portion which is divided into three sub-tanks having decreasing depths extending across the tank. Heating coils in each sub-tank vaporize the solvent to form a cleaning zone, containing vaporized solvent, above the liquid portion, and condensing coils located at the top of the tank condense the vaporized solvent and deposit it into the deepest sub-tank which also is supplied freash make up solvent when required. A series of rollers feeds the material through the tank, from the side having the shallowest sub-tank toward the side having the deepest sub-tank, while repeatedly passing it between the cleaning zone where solvent is condensed on it to clean it, and the condensing zone where it is cooled to a temperature below the temperature of the vaporous solvent. Precondensing coils located medially in the tank between each pass of the material as it extends between the condensing zone and the cleaning zone and vice versa, define the extent of the cleaning zone and direct condensed solvent onto the material to wash it. Soiled solvent is removed from the shallowest sub-tank and evaporatively separated from the oil carried in it and reintroduced into the tank as vapor. After the oil has been removed from the material the solvent is displaced by pressurized steam which is directed onto the material and the steam then is removed from the material by passing it through a heater.
摘要:
A method for removing processing oil from thin sheets of microporous plastic material is comprised of a tank having a liquid zone in its bottom portion which is divided into three sub-tanks having decreasing depths extending across the tank. Heating coils in each sub-tank vaporize the solvent to form a cleaning zone, containing vaporized solvent, above the liquid portion, and condensing coils located at the top of the tank condense the vaporized solvent and deposit it into the deepest sub-tank which also is supplied fresh make up solvent when required. A series of rollers feeds the material through the tank, from the side having the shallowest sub-tank toward the side having the deepest sub-tank, while repeatedly passing it between the cleaning zone where solvent is condensed on it to clean it, and the condensing zone where it is cooled to a temperature below the temperature of the vaporous solvent. Precondensing coils located medially in the tank between each pass of the material as it extends between the condensing zone and the cleaning zone and vice versa, define the extent of the cleaning zone and direct condensed solvent onto the material to wash said material.
摘要:
The calender rolls of the present invention are comprised of relatively thin-walled hollow shells which are supported at each end by shafts having bores which extend into the cavities formed in the rolls. Fittings located at the ends of the shafts are rotatable relative to them so that by tying the fittings together they do not rotate along with the rolls. The fittings at one of the ends of the rolls are connected to a source of wet steam through a pressure regulator and the fittings at the other ends carry probes which extend through the shafts and curve downwardly towards the bottoms of the rolls. A valve regulates the amount of material which flows out of the cavities through the probes. The method by which the rolls are used comprises introducing wet steam into the cavities, maintaining its pressure at a constant level. Since the temperature of wet steam depends upon its pressure, by controlling the pressure of the steam in the cavities and maintaining it at a constant pressure the outer surfaces of the rolls can be maintained at a constant desired temperature, irrespective of the effect of the temperature of the material being calendered or of ambient temperature.
摘要:
Method and apparatus for removing processing oil from thin sheets of microporous plastic material is comprised of a tank having a liquid zone in its bottom portion which is divided into three sub-tanks having decreasing depths extending across the tank. Heating coils in each sub-tank vaporize the solvent to form a cleaning zone, containing vaporized solvent, above the liquid portion, and condensing coils located at the top of the tank condense the vaporized solvent and deposit it into the deepest sub-tank which also is supplied fresh make up solvent when required. A series of rollers feeds the material through the tank, from the side having the shallowest sub-tank toward the side having the deepest sub-tank, while repeatedly passing it between the cleaning zone where solvent is condensed on it to clean it, and the condensing zone where it is cooled to a temperature below the temperature of the vaporous solvent. Precondensing coils located medially in the tank between each pass of the material as it extends between the condensing zone and the cleaning zone and vice versa, define the extent of the cleaning zone and direct condensed solvent onto the material to wash it. Soiled solvent is removed from the shallowest sub-tank and evaporatively separated from the oil carried in it and reintroduced into the tank as vapor. After the oil has been removed from the material the solvent is displaced by pressurized steam which is directed onto the material and the steam then is removed from the material by passing it through a heater.
摘要:
A system for remotely controlling client recording and storage behavior schedules the recording, storing, and deleting of multimedia content on a client system storage device. The invention accepts as input a prioritized list of program viewing preferences which is compared with a database of program guide objects that indicate when programs of interest are actually broadcast. A schedule of time versus available storage space is generated that is optimal for the viewer's explicit or derived preferred content. The viewer may request that certain content be captured, which results in the highest possible priority for those content. The invention provides objects called a capture requests that are sent by the service to client systems. Capture requests reflect local storage management decisions about how the client system storage is partitioned. Capture requests also allow the service to determine content to be recorded by the client system in the same manner that a viewer requests that certain content are recorded but are more powerful than what a viewer can request. Recording requests for a capture request can preempt viewer requests or be entered at the same or lower priority as a viewer request. Capture requests can adjust all aspects of a recording request and affect the capture request itself. Client system operational functionality are also manipulated by the service using capture requests.
摘要:
The present invention generally relates to a system for cleaning substrates. More particularly, the present invention relates to process(es) for effecting chemical removal of residues from semiconductor substrates, including silicon wafers, using a system of reactive reverse micelle(s) or microemulsions in a densified carbon dioxide matrix. Various reactive chemical agents in the reactive micelle system may be used to effect cleaning and removal of etch and metal residues to levels sufficient for commercial wafer production and processing.
摘要:
A freestanding, microporous polymer sheet (52, 56) is composed of a polymer matrix binding and electrically conductive matrix. The polymer matrix preferably includes UHMWPE, and the electrically conductive matrix preferably is in powder form. The UHMWPE is of a molecular weight that provides sufficient molecular chain entanglement to form a sheet, with freestanding characteristics. Multiple microporous sheets (30) can be wound or stacked in a package filled with an electrolyte to function as electrodes in an energy storage device (86), such as a battery. Metallic layers (81, 83) can be applied to the microporous sheets to function as current collectors in such devices.
摘要:
A method of making a battery separator useful in flooded cell type lead acid batteries comprising providing a sheet of microporous polyolefin material having two planar surfaces, forming at least one hollow rib extending from one of the planar surfaces, and wholly or partially filling the hollow rib with a rib core material. The forming of the hollow rib and the filling of the hollow rib with rib core material may be effected in separate steps or simultaneously. Where the formation and filling of the hollow rib take place simultaneously, the process involves applying at least one bead of a rib core material to one planar surface of the sheet of microporous polyolefin material, pressing the bead of rib core material into said microporous polyolefin sheet to thereby displace the microporous polyolefin material located thereunder outwardly from the other planar surface to thereby form a rib member projecting from said other planar surface. The separator thus produced is a sheet of microporous polyolefin material having at least one rib projecting from one planar surface thereof, the rib having an outer surface of the microporous polyolefin material and a core of a rib core material. The microporous polyolefin material is preferably microporous polyethylene. The rib core material is a polymeric material selected from the group consisting of thermoplastics, thermosetting polymers and reactive hot melts.
摘要:
An extendible slideout room having a roof, floor, and sidewalls is moveable between a retracted position and an extended position within a lateral wall of a vehicle such as a motorhome, a boat, or virtually any type of trailer. In the retracted position, the roof, floor and two side walls of the slideout room are disposed within the vehicle, with a third outer side wall positioned in sealed contact with the vehicle's lateral wall about the periphery of the slideout room. When extended, the slideout room's roof, floor and sidewalls project outwardly from the vehicle's lateral wall in sealed contact with the vehicle's wall. Elongated screws rotationally coupled to the slideout room's outer side wall at their respective distal ends are inserted through respective threaded fittings fixedly attached to the vehicle's lateral wall, with each screw disposed adjacent a respective corner of the room. A toothed sprocket is attached to the distal end of each screw, with the sprockets coupled together by means of an endless chain. A drive sprocket connected to a drive motor is also coupled to the chain for displacing the chain and rotating the screws in unison. Rotation of the drive sprocket in a first direction extends the slideout room, while rotation of the drive sprocket in a second, opposed direction retracts the room within the vehicle. The drive mechanism including motor, sprockets and chain are coupled to and move with the slideout room during extension and retraction.