摘要:
A closed-loop system for cleaning vessels containing drilling fluid residue. High pressure jets of water-based cleaning fluid are used to clean the interior of a vessel. The resulting slurry is sent to one or more solids/liquid separation stages to remove drill cuttings and other drilling fluid solids. The substantially solids-free cleaning fluid discharge is recycled.
摘要:
An optical preamplifier device for a light receiver, the device including a first optical amplifier. The first optical amplifier is coupled to an input of an optical filter centered around a fixed wavelength .lambda..sub.o via a wavelength conversion device for converting wavelength to the fixed wavelength .lambda..sub.o of the filter, thereby enabling the device to be made independent of the wavelength .lambda..sub.i of the signal.
摘要:
A closed-loop system for cleaning vessels containing drilling fluid residue. High pressure jets of water-based cleaning fluid are used to clean the interior of a vessel. The resulting slurry is sent to one or more solids/liquid separation stages to remove drill cuttings and other drilling fluid solids. The substantially solids-free cleaning fluid discharge is recycled.
摘要:
Methods and apparatus for attaching a pressure washing device to a storage tank that allows adjustment of the location of the pressure washing device. One embodiment includes a mounting plate adapted to be connected to a tank opening, a second plate hingably attached to the mounting plate, and a pressure washer attachment plate hingably connected to the second plate. The hinged connections may be arranged such as to allow rotation about two axes that are substantially perpendicular to each other. Linear connection apparatus may also be provided to control the relative location between the plates. A roof mounted system includes a vertical extension arm that is suspended from a roof-mounted manway. The vertical extension arm supports a primary pivot point about which a first extension arm deploys. The first extension arm carries a telescoping extension arm that has a secondary pivot point about which pivots a wash head arm having a wash head mounted on the end.
摘要:
A compact golf accessory which may function as a cigar holder, golf club rest or golf ball retriever. The golf accessory is conveniently carried in a golf bag.
摘要:
A system and method is provided for monitoring the activities and/or locations of wireless units in a wireless network independent of location-based service preferences of those wireless units. That is, a system and method is provided that allows an authorized requester override location-based service preferences (e.g., privacy settings) that may be set for a wireless unit. In this regard, an authorized entity may be able to effectively locate and/or monitor the activities of a wireless unit associated with an individual of interest. Furthermore, if proper authorization exists, such monitoring may be done surreptitiously without the wireless unit user's knowledge and/or consent. For example, in some instances, law enforcement agencies may be authorized to monitor call traffic and/or the location of persons utilizing wireless units.
摘要:
Methods and apparatus for attaching a pressure washing device to a storage tank that allows adjustment of the location of the pressure washing device. One embodiment includes a mounting plate adapted to be connected to a tank opening, a second plate hingably attached to the mounting plate, and a pressure washer attachment plate hingably connected to the second plate. The hinged connections may be arranged such as to allow rotation about two axes that are substantially perpendicular to each other. Linear connection apparatus may also be provided to control the relative location between the plates. A roof mounted system includes a vertical extension arm that is suspended from a roof-mounted manway. The vertical extension arm supports a primary pivot point about which a first extension arm deploys. The first extension arm carries a telescoping extension arm that has a secondary pivot point about which pivots a wash head arm having a wash head mounted on the end.
摘要:
The invention relates to a light emitter device comprising an integrated component having a laser section provided with an oscillator section designed to supply a laser wave, and a modulator section. In order to control the light frequency of the emitted modulated wave, an electronic circuit controls the current of the laser section in response to a measurement of the amplitude of the modulation of the voltage induced across the terminals of the laser section by the modulation section.
摘要:
An input signal provided by a generator is applied to a laser emitting diode via a predistortion circuit for improving the linearity of the response of the source. The predistortion circuit includes a linear pi attenuator member constituted by resistances and a non-linear compensating element constituted by a Schottky diode connected in parallel with said attenuator member. The invention is particularly applicable to making light transmitting cable heads for optical fiber telecommunications systems.