Automatically operable protection is afforded to eliminate pollution to the atmosphere caused by failure of fabric filter bags in a filter network. This is achieved by increases after bag failure in aerodynamic flow volume of fluid in the flow path to the individual filter bags past a closure valve structure. Critical and rapid response is achieved by an aerodynamic substantially flat plate member pivotably mounted off center to initiate movement toward a closure position. A counterweight on the...

A method and apparatus for sealing a leaking valve on a compressed gas tank to accomodate safe transport of the tank and valve from the place of use in the field to a repair depot where the tank and valve may be safely serviced. The apparatus comprises a valve cap specifically designed for practice of the method. The method resides in the steps of placing the cap over the leaking valve and attaching the cap to the tank, filling the cap with a fusible substance in liquified form, the fusible subs...

A method of repairing a leaking coupling between an air conditioning cooling coil and its associated expansion valve using a split clamp-on coupling nut. The nut consists of two mirror-image halves, the two halves being joined together by a pair of screws. The joined together halves provide a passageway sized and partially threaded to accommodate the flanged end of the cooling coil pipe and the threaded end of the expansion valve pipe when these two pipes are aligned along a common axis and the ...

A backlight unit applied on a display device is disclosed. The backlight unit includes a base having a frame, an optical film, an adhesive and a shading tape. The frame has at least a recess, and the optical film has at least a flange for inserting in the recess of the frame. The shading tape locates on the frame, and the adhesive locates between the frame and the shading tape only. No adhesive exists between the optical film and the shading tape.

A developing agent container includes a housing having a feeding element that feeds a developing agent and a sealing element made of felt of polyester-base fibers to prevent toner leakage from both ends of a developing roller with respect to an axial direction when mounted in position. The sealing element may be made of a fabric formed with weaving seams. Assembling of the developing agent container includes placing the sealing element at an end of the inside of the housing and placing the feedi...

A system for canceling network pointer adjustment jitters (PAJs). The system is equipped with an elastic buffer to receive, according to a write clock signal, and for temporarily storing a plurality of data bits in the buffer and a pointer interpreter for determining a pointer adjustment event (PAE) and a polarity of bit-stuffing from the data bits. The jitter-cancellation system includes a leaking rate control signal generator for generating a leaking rate control based on the PAE and a polarit...

A magnetic recording and reproducing apparatus includes: a recorder for recording information signals so as to form tracks obliquely on a magnetic tape, and for recording pilot signals so that the frequency may differ between different modes such as SP and LP; a reproducing head for reproducing recorded information; an error detecting circuit for comparing the level difference of pilot signals recorded in both tracks adjacent to the track to be scanned by there producing head and for outputting ...

A magneto-optical recording apparatus includes an actuator for driving an objective lens for focusing a light beam on a magneto-optical disk to effect focusing and tracking, a magnetic head for applying a magnetic field to a portion irradiated by the light beam on the magneto-optical disk, which has a substantially U-shaped core with a main pole facing the magneto-optical disk and an opposed pole opposed thereto, and a linear motor for performing a seek operation to move the objective lens and m...

A print head has an array of surface-emitting light-emitting diodes formed in a chip, near one edge of the chip. The chip is mounted on a conductive pattern on the component surface of a printed circuit board. The printed circuit board includes a material, exposed on the component surface throughout a region adjacent to the above-mentioned edge of the chip, that is less optically reflective than the conductive pattern. Emitted light that leaks through the chip edge is partly or completely absorb...

A system and method for repair of leaking storage tanks containing fluids which contaminate ground water has been devised requiring reduced funding which will make it economically feasible for repair of all old tanks suspected of being potential leakers, thereby protecting the public and environment from future severe hazards. All internal appurtenances are removed from the tank before it is gas freed and fitted with a new combination manway and appurtenances access. All tank openings originally...