124results about How to "Small angle" patented technology

A resonator system for generating a radio frequency (RF) magnetic field in a volume under investigation of a magnetic resonance (MR) arrangement, comprises a number N of individual resonators (2) which surround the volume under investigation and which are each disposed on a flat dielectric substrate (1) around a z-axis, wherein the individual resonators (2) have windows (8) through each of which one individual RF field is generated in the volume under investigation in single operation of the individual resonators (2) and, through cooperation among the individual resonators (2), a useful RF field (7) is generated in the volume under investigation, wherein a remote RF field (6) is asymptotically generated far outside of the resonator system, and the spatial distribution of the useful RF field (7) is substantially mirror-symmetrical relative to a first plane A which contains the z-axis, and that of the asymptotic remote RF field (6) is substantially mirror-symmetrical relative to a second plane B which contains the z-axis, the useful RF field (7) extending substantially parallel to the first plane A in the volume under investigation, wherein the number of individual resonators (2) is N>4 and wherein, during operation of the resonator system at at least one point in time, the substrate plane of at least one individual resonator (2) subtends an angle of more than 40° with respect to the direction of the useful RF field (7) in the volume under investigation, and at least one further individual resonator (2) subtends an angle of less than 40° with respect to the direction of the useful RF field (7) in the volume under investigation, is characterized in that the first plane A is not rotated about the z-axis relative to the second plane B or is rotated by less than 360° / (N+1). The inventive resonator system realizes a resonator system with improved field homogeneity and full quadrature suitability, high quality factor and large efficiency using straightforward constructional measures.

A novel air filter design for use in residential and commercial heating and air conditioning systems comprising a laminated unit having a filter media where the upstream side of the filter media having a porous layer of passive electrostatic netting. The air filter design has a corrugation configuration to increase the available surface area when compared to conventional flat filters.

Disclosed is a sliding panel structure of a multifunctional paper shredder, the paper shredder includes a housing having an interior space, an installing section at the top, an accommodating space at the bottom, and a feeding slot under the installing section. A pair of rolling blade wheels are disposed under the feeding slot which has a pressing wall surface extended vertically downward and aligned with the middle of the rolling blade wheels. An accommodating section is defined at the top of the housing, and a positioning section having at least one sliding groove is disposed at an inner side of the accommodating section. A sliding panel, having a plurality of slots is slidably installed in the accommodating section, having a positioning pin disposed in the positioning section correspondingly, and at least one slide pin embedded into the sliding groove for guiding the movement of the sliding panel.

A liquid crystal display device with a higher aperture ratio is provided. According to one embodiment of the present invention, second color filters are formed so as to overlap with first color filters when adjacent color filters having different colors are formed on the TFT substrate side, so that the angle of the first tapers where said first color filters overlap and the angle of the second tapers where said second color filters overlap are set to 45° or more and 90° or less.

Disclosed is a sliding panel structure of a multifunctional paper shredder, the paper shredder includes a housing having an interior space, an installing section at the top, an accommodating space at the bottom, and a feeding slot under the installing section. A pair of rolling blade wheels are disposed under the feeding slot which has a pressing wall surface extended vertically downward and aligned with the middle of the rolling blade wheels. An accommodating section is defined at the top of the housing, and a positioning section having at least one sliding groove is disposed at an inner side of the accommodating section. A sliding panel, having a plurality of slots is slidably installed in the accommodating section, having a positioning pin disposed in the positioning section correspondingly, and at least one slide pin embedded into the sliding groove for guiding the movement of the sliding panel.

An adjustment system for adjusting the width of a cuff has an elongated adjustment strip having a set of longitudinally extending teeth. Each tooth has a forward side and a rearward side. A length of each forward side is greater than a length of each of the rearward sides so that an angle between a longitudinal axis of the strip and the forward side is less than an angle between the longitudinal axis and the rearward side of each tooth. There is a locking mechanism formed by a base plate having a locking device on an underside and a guide for slidably connecting the locking mechanism to the strip. The tooth and the locking device are configured so that the locking device can be moved forward along the strip using only a small amount of force, and can then be moved rearward using a larger amount of force.

A tool changer for machine tools, the tool changer having at least one rotatable tool gripper, a supporting column for the tool gripper which can be lifted and lowered and rotated about a rotational axis, a mechanical cam gear for generating the lifting and rotating movements of the tool gripper, all driven by a drive motor connected to a cam barrel and intermediate gearing. The cam barrel has a tappet for the rotational drive of the tool gripper on its upper front and a cam curve or groove on its peripheral surface for the lifting movement of the tool gripper. The tappet drives a Maltese wheel supported on a shaft parallel to the rotational axis of the tool gripper. The Maltese wheel, the cam barrel, and the supporting column of the tool gripper are successively supported in a manner parallel to the axis.

A method of manufacturing a coil assembly unit comprises steps of coil forming, weaving, compressing steps. In the forming step, each coil wire is formed which provides linear portions and turn portions each connecting linear portions, during which bent portions are formed at both ends of each linear portion, the bent portions being bent so that mutually adjacent linear portions are deviated from each other. In the weaving step, the coil wires are mutually woven in turn, in which the turn portions intersect in turn. All the coil wires are subjected to the weaving step in turn to produce a woven coil assembly. In the compressing step, the woven coil assembly is compressed by compressing the woven coil so that each bent portion is deformed to be linear to allow the mutually adjacent linear portions to come closer to each other, thus producing the coil assembly unit.

[Problem] Because the knife edge of medical knives such as straight knives manufactured with austenite stainless steel is thin and sharp, there is the problem that the knife edge bends too easily when making incisions in the cornea, sclera, etc. during ophthalmologic surgery. The invention provides a medical knife capable of increasing the strength of the thin, sharp knife edge and preventing the reduction of sharpness. [Solution] This medical knife has a flat cutting part and an inclined surface formed along the border of said cutting part. By electrolytic polishing or chemical polishing of the inclined surface, a convexly curved cutting edge is formed on at least the edge of the inclined surface of the knife. The knife edge has a rounded configuration. The knife edge being rounded increases the thickness of the knife edge, increases the strength thereof and hinders bending.

A crossbow and bolts are described herein. The crossbow may include a main frame defining a groove, a top limb, a bottom limb, a string and a trigger assembly. The top limb may extend in front of the main frame and be positioned above the lower limb. The string may be configured to be cocked backwards and engage with the trigger assembly. A bolt may be configured to attach to the string and be ejected from the crossbow when the trigger assembly is fired. The bolt may include a removable tip, a removable coupling, and a snap-on fletching. The crossbow may include a worm gear assembly to cock the string for firing.