Abstract: A method for attaching two electronics boards, e.g., a testing PCB and a space transformer, comprises rack welding resin prepreg and a mylar film to a testing PCB; laser drilling via holes in the resin prepreg and mylar film such that the holes are aligned on one side of the resin prepreg with connection/capture pads on the testing PCB and aligned (after attachment) on the other side of the resin prepreg with connection capture pads on a space transformer, filling the via holes with sintering paste; applying a pressure treatment to remove air, bubbles, and voids from the sintering paste; removing the mylar film; and using a lamination press cycle to attach a space transformer to the resin prepreg.

Abstract: A method for attaching two electronics boards, e.g., a testing PCB and a space transformer, comprises rack welding resin prepreg and a mylar film to a testing PCB; laser drilling via holes in the resin prepreg and mylar film such that the holes are aligned on one side of the resin prepreg with connection/capture pads on the testing PCB and aligned (after attachment) on the other side of the resin prepreg with connection capture pads on a space transformer, filling the via holes with sintering paste; applying a pressure treatment to remove air, bubbles, and voids from the sintering paste; removing the mylar film; and using a lamination press cycle to attach a space transformer to the resin prepreg.

Abstract: The present invention relates to a method for obtaining calcium aluminates for metallurgical use from non-saline aluminum slags by means of reactive grinding and thermal treatment.

Abstract: The present invention relates to a method for obtaining calcium aluminates for metallurgical use from non-saline aluminum slags by means of reactive grinding and thermal treatment.

Abstract: The present invention relates to a catalytic hydroconversion process in dispersed phase of extra-heavy and heavy crude oils for upgrading their transport properties, that operates at low severity conditions, in such a way that the obtained product can be transported by conventional pumping to the distribution and refining centers. The main technical contributions of the hydroconversion process in dispersed phase of this invention to upgrade the transport properties of heavy and extra-heavy crudes are: Compact size and can be localized next to the production facilities on ground or offshore Use of operating conditions at low severity Reduction of the viscosity and increase of the API gravity at values that allow the transportation by pipeline of heavy or extra-heavy crude Upgrading of the crude oil properties in a permanent way Hydrocarbon and gases from production centers are used as supplies Operation in dispersed phase avoiding plugging problems Use of low-cost disposable catalysts at low concentrations.

Abstract: The present invention relates to a process for the partial upgrading of properties of heavy and/or extra-heavy crude oil by low severity catalytic hydrotreatment in only one reaction step. The process of the present invention is obtained upgraded oil with properties required for its transportation from offshore platforms either to maritime terminal or to refining centers. The process reduces the viscosity of heavy and/or extra-heavy crude oil, and decreases the concentration of impurities, such as sulfur, nitrogen, and metals, in such a way that heavy and/or extra-heavy crude oils can be transported to maritime terminals or to refining centers. The process increases the lifetime of the catalyst and decreased operating costs by reducing consumption of utilities because the operation of the process is carried out at lower severity. The partially upgraded oils obtained in this process can be transported directly to the maritime terminals or to existing refineries.

Abstract: A process for hydroconversion-distillation of heavy and/or extra-heavy crude oils, which comprises four stages: 1) desalting and separation of the feedstock; 2) catalytic hydrotreating of light fraction (optional); 3) catalytic hydroconversion of heavy fraction, and 4) distillation of hydrotreated products to provide products that can be processed in conventional refining schemes designed to operate with light and intermediate crude oils.

Abstract: The present invention relates to a catalytic hydroconversion process in dispersed phase of extra-heavy and heavy crude oils for upgrading their transport properties, that operates at low severity conditions, in such a way that the obtained product can be transported by conventional pumping to the distribution and refining centers.

Abstract: The present invention relates to a process for the partial upgrading of properties of heavy and/or extra-heavy crude oil by low severity catalytic hydrotreatment in only one reaction step. The process of the present invention is obtained upgraded oil with properties required for its transportation from offshore platforms either to maritime terminal or to refining centers. The process reduces the viscosity of heavy and/or extra-heavy crude oil, and decreases the concentration of impurities, such as sulfur, nitrogen, and metals, in such a way that heavy and/or extra-heavy crude oils can be transported to maritime terminals or to refining centers. The process increases the lifetime of the catalyst and decreased operating costs by reducing consumption of utilities because the operation of the process is carried out at lower severity. The partially upgraded oils obtained in this process can be transported directly to the maritime terminals or to existing refineries.

Abstract: A process for hydroconversion-distillation of heavy and/or extra-heavy crude oils, which comprises four stages: 1) desalting and separation of the feedstock; 2) catalytic hydrotreating of light fraction (optional); 3) catalytic hydroconversion of heavy fraction, and 4) distillation of hydrotreated products to provide products that can be processed in conventional refining schemes designed to operate with light and intermediate crude oils.

Abstract: The collapsible shipping pallet incorporates a substantially planar deck with multiple stringers removably attached to the bottom of the deck. Shouldered holes arranged in linear spaced relation at predetermined stringer attachment locations on the deck engage resilient slotted pins extending from a top edge each stringer. Multiple slats, each extending perpendicularly to the stringers and removably received in a relief on a bottom edge of each stringer are attached to the stringers also using resilient slotted pins. The stringers support triangular jaws inserted in triangular recesses in an end portion of the stringer to receive and restrain pallet straps. An aperture in the side of the stringer allows insertion of a slotted crank to tension the pallet straps. The deck incorporates slots adapted to receive keys to extend above the surface of the deck engaging receiving slots in a first layer of stacking boxes.

Abstract: The collapsible shipping pallet incorporates a substantially planar deck with multiple stringers removably attached to the bottom of the deck. Shouldered holes arranged in linear spaced relation at predetermined stringer attachment locations on the deck engage resilient slotted pins extending from a top edge each stringer. Multiple slats, each extending perpendicularly to the stringers and removably received in a relief on a bottom edge of each stringer are attached to the stringers also using resilient slotted pins. The stringers support triangular jaws inserted in triangular recesses in an end portion of the stringer to receive and restrain pallet straps. An aperture in the side of the stringer allows insertion of a slotted crank to tension the pallet straps. The deck incorporates slots adapted to receive keys to extend above the surface of the deck engaging receiving slots in a first layer of stacking boxes.

Abstract: An apparatus for controlling the magnitude of a metering signal used in a communication system includes a high pass filter and a threshold detector. The apparatus is preferably integrated on to a subscriber line audio-processing circuit (SLAC device) which is used on a line card. The device is operable with either 12 kHz of 16 kHz metering signals. The high pass filter preferably includes a shift register and an adder. The level detector preferably includes a shift register, an OR gate and an AND gate. The device preferably is utilized to reduce the echo or reflection caused by the variable impedance of subscriber lines in telephone communication systems.