摘要:
A gauge wheel (1) for use in controlling the depth of a furrow formed by at least one planting member of cultivation equipment includes a hub member (5) having a central hub and an outer peripheral portion (9); and a resilient coil member (3). The resilient coil member (3) includes a plurality of coil windings (17) which extend closely adjacent to the outer peripheral portion (9) of the hub member (5) and which define an outer periphery of the gauge wheel (1). The coil member (3) is connected at or adjacent one end thereof to the hub member (5). In use, the resilient coil member engages the soil on a side of the furrow and controls the depth by which the at least one planting member cuts into the soil to form the furrow. There is also provided a coulter gauge wheel which includes a coulter disc and at least one gauge wheel as described above.
摘要:
The present disclosure provides for drag reduction on a moving object through the atmosphere, thus increasing fuel efficiency. This is accomplished by attaching an inflatable boattail (i.e. drag reducer) to the aft face or rear end of a vehicle or trailer, thus delaying the flow separation to a point further downstream and mitigating the intensity of the negative pressure on the aft face.
摘要:
The present disclosure provides an airstream deflector fairing comprising a front or fore end having a leading edge attached to an undercarriage of a wheeled vehicle. The fairing further includes a rear or aft end and a lower bottom portion of the fairing includes a panel facing the ground at an angle which in turn directs an airstream passing thereunder downwardly and outwardly relative to the undercarriage and substantially at an area below a trailing axle downstream from the fairing. The lower bottom panel includes an angle of declination relative to the undercarriage from about 12 degrees to about 24 degrees.
摘要:
A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the body of the blowout preventer, wherein the bonnet is coupled to the bonnet mounting member.
摘要:
Polymer composition comprising (1) at least one poly(aryletherdisulfone) [polymer (P)] of which more than 50 mole % of the recurring units are recurring units (R1): (1) wherein Ar and Q, equal or different, are divalent radicals comprising at least one aromatic ring, and (2) a combination (AC) of additives composed of at least one fibrous filler (A1), and at least one non fibrous surface modifier (A2) chosen from liquid surface modifiers and particulate surface modifiers. Shaped article comprising the polymer composition, wherein said shaped article is a sliding part suitable for being used in a friction and wear application. Method of manufacturing said shaped article which comprises solution processing, compression molding, machining and/or melt processing the polymer composition.
摘要:
A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.
摘要:
A sidewall passivation layer is deposited on an etched feature in a semiconductor substrate with a hydrocarbon deposition gas by introducing H2, determining certain mixture percentages for the hydrocarbon gas/H2 mix at which the etch rate for the substrate peaks, the etch rate begins to rise from a generally steady state, and/or the etch rate falls to zero, and then maintaining the mixture percentage within a selected range. Where the hydrocarbon gas/H2 mix is maintained at a percentage between the steady-state etch rate percentage and the peak etch rate percentage, then relatively high ion energies are used. Where the hydrocarbon gas/H2 mix is maintained at a percentage between the peak etch rate percentage and the percentage where the etch rate falls to zero, then relatively low ion energies are used. High aspect-ratio features in a semiconductor substrate can be produced by performing alternating etching and depositing a passivation layer on the substrate, where the deposition is performed according to the above-described deposition process.
摘要翻译:侧壁钝化层通过引入H2而沉积在具有烃沉积气体的半导体衬底的蚀刻特征上,确定烃基气体/ H2混合物的某些混合百分比,其中衬底的蚀刻速率达峰值,蚀刻速率开始上升 和/或蚀刻速率降至零,然后将混合物百分比保持在所选择的范围内。 当烃气/ H2混合物保持在稳态蚀刻速率百分比和峰蚀刻速率百分比之间的百分比时,则使用相对较高的离子能量。 当烃气体/ H 2混合物保持在峰值蚀刻速率百分比与蚀刻速率降至零的百分比之间的百分比时,则使用相对低的离子能量。 半导体衬底中的高纵横比特征可以通过在衬底上执行交替蚀刻和沉积钝化层来制造,其中根据上述沉积工艺执行沉积。
摘要:
This invention relates to methods for treatment of semiconductor substrates and in particular a method of etching a trench in a semiconductor substrate in a reactor chamber using alternatively reactive ion etching and depositing a passivation layer by chemical vapour deposition, wherein one or more of the following parameters: gas flow rates, chamber pressure, plasma power, substrate bias, etch rate, deposition rate, cycle time and etching/deposition ratio vary with time.
摘要:
The present disclosure provides an airstream deflector fairing comprising a front or fore end having a leading edge attached to an undercarriage of a wheeled vehicle. The fairing further includes a rear or aft end and a lower bottom portion of the fairing includes a panel facing the ground at an angle which in turn directs an airstream passing thereunder downwardly and outwardly relative to the undercarriage and substantially at an area below a trailing axle downstream from the fairing. The lower bottom panel includes an angle of declination relative to the undercarriage from about 12 degrees to about 24 degrees.