diameter (Total 23453 Patents Found)

The present invention relates to an outer-diameter blade, an inner-diameter blade and cutting machines which respectively use the outer-diameter blade and the inner-diameter blade for cutting hard material, such as metal, ceramics, semiconductor single crystal, glass, quartz crystal, stone, asphalt or concrete, and a c...
This disclosure includes auxiliary-line riser segment assemblies (e.g., with isolation units) that are suitable for managed pressure drilling (MPD) and that can be lowered (e.g., when connected to other riser segment assemblies) through a rotary of a drilling rig. Some embodiments are configured to have portions of the...
A power operated rotary knife having a large diameter, annular rotary knife blade and interfitting blade housing wherein the rotary knife blade includes notched bearing race providing for an enhanced or enlarged area of bearing contact between the blade bearing race and the corresponding blade housing bearing structure...
A method and means for producing a large diameter monocrystalline or single-crystal rod of semiconducting material from a polycrystalline bar comprising the supporting of the bar at an angle with the vertical and the heating of the lower end to a molten state by means of a high-frequency induction coil disposed thereab...
A method for producing a Ti—6Al—4V article, includes providing a work piece of a Ti-6Al-4V alloy having a beta-transus temperature; subjecting the work piece to a beta solution heat treatment process in a furnace with a vacuum at a temperature above the beta transus; quenching the work piece in the furnace using hi...
According to the present invention the optical fiber includes a core with a first refractive index (n1) and the innermost core region with the refractive index n0, a cladding surrounding the core, the cladding having a third refractive index (n3), wherein n1>n3 and n0<n1. According to some of the embodiments the ...
Certains modes de réalisation de la présente invention concernent une base pour un ensemble mandrin électrostatique (ESC) conçu pour supporter une pièce de fabrication au cours d'une opération de fabrication dans une chambre de traitement, telle qu'une gravure par plasma, un nettoyage, un système de dép...
A pulsed detonation gun comprises a small-diameter detonation tube, an igniter, and an outlet for discharging detonation products containing a coating material. A detonable or reactive mixture containing a coating precursor is formed in the detonation tube, and the detonable or reactive mixture is ignited to produce de...
A microstrip antenna configured to wrap around approximately 270 degrees a projectile's body without interfering with the aerodynamic design of the projectile. The microstrip antenna has two identical grounded quarter wavelength microstrip antenna elements positioned around the circumference of the projectile's...
A connecting and fitting method is provided for metallic pipes with a small diameter. The method includes providing a piping component having a tube wall extending therefrom and defining an expanded chamber. The method further includes providing a pipe member and forming at least one circumferential discontinuity in th...
In the field of side-cavity coupled accelerators the accelerating cavity to which the accelerating power input is connected has preferably a smaller diameter than the other accelerating cavities. A side cavity is connected by a separate passage to the accelerating cavities of different diameter it couples together, whe...
A magnetic flaw detector for use in small-diameter tubular goods employs a second magnetic field to confine a first magnetic field to reside within a desired volumetric region in the wall of a specimen under test. A flux leakage detector and a variable reluctance sensor provide means for detecting and discriminating be...
A heating device is used in an image forming apparatus. In the heating device, a resin layer is provided between a core metal of a fixing roller and a ball bearing. The resin layer is adhered to the core metal so as to obviate a noise, caused by a rubbing of the resin layer against a ball bearing, which is otherwise pr...
A DEVICE FOR CHECKING THE SIMPLE PITCH EFFECTIVE DIAMETER OF INTERNAL AND EXTERNAL THREADS MEASURES A PARAMETER OF A FLUID MEDIUM IN THE CLEARANCE BETWEEN A THREAD BEING MEASURED AND A MASTER THREAD. INCLUDED IN THE DEVICE IS A HOLDER WITH A MASTER THREAD WHICH MATCHES AND MATES WITH THE THREAD BEING MEASURED. THE HOLD...
A method of fabricating very small diameter deep passages is provided. The method of fabricating very small diameter deep passages may include fabricating a recess (206) in a first side (202) of an article (200). An article passage (216) may be fabricated between a second side (204) of the article (200) and the recess ...
A large diameter high strength hot rolled steel bar consisting of a low alloy steel having a carbon content of 0.3 to 0.9% and a metallurgical structure with a interlammelar spacing of 0.05 to 0.15 μm, and having a diameter of at least 20 mm, a tensile strength of at least 120 kg/mm 2 and a reduction of area of at le...
A medical apparatus for placing an embolic coil at a preselected position within a vessel comprising a coil assembly having an embolic coil attached to a cylindrical headpiece having at least one bending point formed by a circumferential groove and a deployment catheter having a distal section for retaining the coil as...
The invention discloses nano/micron binary structured powders for superhydrophobic, self-cleaning applications. The powders are featured by micron-scale diameter and nano-scale surface roughness. In one embodiment, the average diameter is about 1-25 μm, and the average roughness R a is about 3-100 nm. The nano/micron...
A high-purity vitreous silica crucible used for pulling a large-diameter single-crystal silicon ingot, includes a double layered structure constituted by an outer layer composed of high-purity amorphous vitreous silica with a bubble content of 1 to 10% and a purity of 99.99% or higher, and an inner layer composed of hi...
Disclosed is a color-converting light emitting device, which includes a light emitting element for emitting light with a predetermined wavelength and a color-converting member for absorbing a portion of light emitted from the light emitting element to convert the wavelength of the light into another wavelength. The pre...
The direct roving winder has a machine frame which carries at least one winding spindle for the production of one or more roving packages and a cross-winding device. An apparatus for contactless detection of the actual diameter of a roving package is also provided which has a laser sensor with a transmitter and a recei...
The invention provides a method for the production of a photonic device comprising providing a substrate, forming in the substrate substantially straight pores, lining or filling the pores with a material having voltage-dependent index of refraction, and removing part but not all of the substrate materials so that an a...
A method of producing plastic containers comprising an opening having a smaller diameter than that of the base, and the container thus produced, comprising the steps of producing a lower portion and an upper portion of a container separately, using a resin injection process, and welding the lower and upper portions usi...
(57)【要約】 【課題】 外径面にばりが、また内径面にキズが発生し ない外径側球面形状リングの製造方法を提供することに ある。 【解決手段】 外径が外径側球面形状リングの端面の直 径より大きく且つ最大外径よりも小さく、内径が...
PROBLEM TO BE SOLVED: To provide a method of high speed electrolytic polishing for an inner surface of small diameter hole where solid phase electrolytic products or anodal liquid phase in a small diameter hole are eliminated swiftly, speeding up and qualitative upgrade of an electrolytic polishing are enabled, and pol...
基于电离层传播特性的相径扰动抑制方法,属于雷达信号处理技术领域。本发明解决了现有的电离层相径扰动抑制方法从信号处理角度对电离层相径扰动抑制时,抑制作用很有限、甚至失效的问题。技术方案为:通过对国际参考电离层模型和...
The testing device includes following parts: being setup at receiving end, the local reference signal generator generates pseudorandom sequence identical to sequence at transmitting end, and generatesdirect sequence spread spectrum modulation through digital modulation; generating reference signal, the dual channel tre...