摘要:
The present invention provides a composition, which comprises an aqueous-based solvent and forms a transparent colourless coating, which yields markings of high contrast on exposure to energy. It also provides a process for the preparation of these compositions, substrates coated with these compositions and a process for their preparation, a process for preparing marked substrates using these compositions and marked substrates obtainable by the latter process.
摘要:
The present invention is an anchoring device used in securing an attachment to an object or structure that has no attachable surface wherein this tool can be attached to said object to be lifted or pulled. This tool is made of a machined two-inch solid steel round stock, three feet long utilizing very aggressive No#4 thread lead by a 1½drill with a conical relief to avoid binding. By the use of aggressive screw threads on a very tough steel shaft and having the ability to use several different drill heads for penetration of objects thereby allowing the tool to lock or attach it self to the object. A winch and/or pulling devices can then connected to the tool pull ring and the object is pulled out or removed from the ground, water or both. The removal of this tool from an object is accomplished by turning the tool counter clockwise or until it is completely unscrewed.
摘要:
In some illustrative embodiments, an ultrasonic transducer drive includes a signal generator for producing an outgoing signal and a transducer for converting the outgoing signal to outgoing ultrasound. The transducer may also convert at least a portion of ultrasound reflected by an object to an incoming signal. The transducer may have a transmit side connected conductably to the signal generator during at least a first predetermined period of time and a receive side connected conductably to a signal receiver during at least a second predetermined period of time. A shunt may be connectable between the receive side and a reference potential. The signal generator may generate the outgoing signal during at least substantially the first predetermined period of time while the shunt connects the receive side to the reference potential. The signal receiver may receive the incoming signal during substantially the second predetermined period of time while the shunt is substantially open.
摘要:
A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.
摘要:
An ultrasound system and related method for forming 2D C-scan images and/or collecting 3D image data from 2D transducer arrays. The system including in part a 2D transducer array of elements, transmit voltage generation means for each element, a memory buffer with or part of channels for each element, and a receive beamformer. On a time serial or sequential basis, several times for each line of firing, the contents of the per element memory buffer are read into the beamformer with different focusing values for each buffer reading cycle. In this way, the beamformer can calculate beamformed image values for multiple points per line firing cycle—or per each line of signals between the transducer array and receive beamformer.
摘要:
An ignition coil and a method for its manufacturer are provided, the ignition coil including a housing, a primary winding and a secondary winding disposed in the housing, and a terminal including a connection portion in electrical communication with the secondary winding and a threaded portion engaging the housing. The threaded portion of the terminal may include a self-tapping threaded portion. Furthermore, the terminal may include a first body portion having a first threaded portion and a first median diameter and a second body portion having a second threaded portion and a second median diameter, where the second median diameter is greater than the first median diameter. The terminal may also include a shoulder portion having a diameter greater than the second median diameter and a third body portion having a third median diameter greater than the second median diameter.
摘要:
An ignition coil for an internal combustion engine minimizes the propagation of cracks in the encapsulate material surrounding the components of the ignition coil and provides a supplemental dielectric barrier. In one embodiment, the ignition coil comprises a housing, an outer core, an inner coil, and a coil assembly. The housing includes a bottom wall connected to an outer wall extending around the periphery of the housing. The outer core is positioned inside the outer wall, while the inner core is positioned inside the outer core. The coil assembly includes a primary winding and a secondary winding concentrically positioned relative to each other. The coil assembly is mounted to the inner core and positioned inside the outer core. The housing further includes an inner wall extending along the inner periphery of the outer core and positioned between the outer core and the coil assembly to prevent propagation of cracks.
摘要:
A hand held ultrasonic instrument (10) is provided in a portable unit that performs C-Mode imaging and collects 3D image data. In a preferred embodiment a transducer array (60), display unit (20), beamformer (40), power system, and image processor are integrated in one enclosure weighing less than three pounds. In operation, the portable unit is scanned across a target and the displayed image is conveniently presented to the operator whereby the displayed image corresponds exactly to the target, or a scaled fashion if desired.
摘要:
A method for stretch breaking fibers to produce a staple yarn and operating a staple fiber spinning machine that enables the production of a plurality of products of lot size smaller than a large denier tow product. The process includes at least two break zones and a consolidation zone downstream from a second break zone to form a staple yarn. The filaments are broken in a second break zone downstream from the first break zone by increasing the speed of the fiber fed into the process.