81results about How to "Reduce Design Constraints" patented technology

A projection-based x-ray imaging system combines projection magnification and optical magnification in order to ease constraints on source spot size, while improving imaging system footprint and efficiency. The system enables tomographic imaging of the sample especially in a proximity mode where the same is held in close proximity to the scintillator. In this case, a sample holder is provided that can rotate the sample. Further, a z-axis motion stage is also provided that is used to control distance between the sample and the scintillator.

A tolerance compensating mounting device (100, 100') has a threaded fastener (110, 110'), an outer member (120, 120') including a mounting bore, and a tubular member (130, 130', 230, 330, 430, 530, 630). The tubular member (130, 130', 230, 330, 430, 530, 630) has an internal surface (132a, 132a') rotatably coupled to the threaded fastener (110, 110') and an external surface (134a, 134a') rotatably coupled within the mounting bore of the outer member (120, 120') such that the tubular member (130, 130', 230, 330, 430, 530, 630) rotates about a center axis of the tubular member (130, 130', 230, 330, 430, 530, 630) in synchronization with rotation of the threaded fastener (110, 110') to move with respect to the outer member (120, 120') in a direction protruding from the outer member (120, 120') and then the threaded fastener (110, 110') subsequently rotates with respect to the tubular member (130, 130', 230, 330, 430, 530, 630) upon further rotation of the threaded fastener (110, 110'). The tubular member (130, 130', 230, 330, 430, 530, 630) has a tool engaging structure (138, 138', 238, 338, 438, 538, 638) formed on an axial end surface of the tubular member (130, 130', 230, 330, 430, 530, 630) at a first axial end portion with the tool engaging structure (138, 138', 238, 338, 438, 538, 638) being radially spaced between the external surface (134a, 134a') and the internal surface (132a, 132a') of the tubular member (130, 130', 230, 330, 430, 530, 630).

A power metering device having direct current offset cancellation and phase equalization between the voltage and current channels by using two high-pass filters, one for each channel, and further removing the ω(2πf) component of the power term for less critical low-pass filter design.

To provide a breathing device for an internal combustion engine, wherein the structure around the check valve is simplified so that the engine as a whole can be manufactured compact, the breathing device includes a check valve (34) for fluid connecting, a crank chamber (27) and a rocker arm chamber (31) in the combustion engine. The check valve (34) is disposed in a head gasket (35) that is interposed between a cylinder block (6) and a cylinder head (7). The check valve (34) is in the form of a reed valve separate from the head gasket (35) and is supported by the head gasket (35) by means of a rivet (36).

A vehicle lamp emitting light to a lateral direction can include a simple construction to reduce design limitations, and can achieve desired light distribution characteristics by controlling the direction and intensity of light illuminated in a range covering the front and the side of the vehicle. The vehicle lamp preferably includes: a second reflecting surface for reflecting incident light from a light source to a predetermined direction; a third reflecting surface, arranged forward of the light source and backward of a projection lens and out of a main optical path, for reflecting light from the second reflecting surface toward front; and a fourth reflecting surface, arranged forward of the third reflecting surface and out of the main optical path, for reflecting light from the third reflecting surface to a lateral direction relative at least to a region of light emitted from the projection lens along the main optical path.

The invention discloses a pipeline dredging and guiding device for water conservancy construction. The pipeline dredging and guiding device comprises a rotating head, an outer cylinder, an inner cylinder, a core assembly and a rear end cover, wherein the rotating head comprises a conical shell-shaped main body, cutter teeth are arranged on the inner side wall of the main body, blades are arrangedon the outer side wall of the main body, and the blades are gradually shortened from the large end to the small end of the main body; an outlet of a water outlet pipeline is arranged by facing a cutting face of the rotating head; jet holes for ejecting water flow are formed nearby the bottoms of water injection cavities of the inner cylinder, and the water flow ejected from the jet holes just impacts the blades to drive the rotating head to perform rotary cutting; a mandrel is connected with a bullet structure through a connecting rod fixed on the inner wall of a core tube to be fixed in the core tube in a suspended manner, the rear end of a rotating shaft is mounted on the rear end cover, and a hollow cavity of the rear end cover is communicated with the water injection cavities of the inner cylinder; a discharge port penetrating through the inner cylinder and the outer cylinder is formed in the lower side wall, close to the rear end cover, of the core tube. The device is high in dredging capacity and quite high in dredging efficiency.

The invention aims to provide a scrap chute mechanism which can smoothly discharge materials under a condition that the height of a lower mould is small so as to reduce limit on design of the mould. The scrap chute mechanism comprises a scrap chute and an air cylinder, wherein the scrap chute is arranged on a lower mould body through a hinge; the air cylinder is vertically arranged at the lower part of the scrap chute; the end of a piston rod of the air cylinder is movably connected with or pushes against the bottom of the scrap chute. When the mechanism works, the piston rod of the air cylinder reciprocates vertically and constantly under the action of air, and the piston rod can jack the scrap chute up when moving upwards; the scrap chute can only rotate around the hinge because the scrap chute is limited by the hinge under the scrap chute; the angle of the scrap chute is increased in the rotating process, and scrap can be smoothly discharged. The scrap chute mechanism has a simple structure and can discharge smoothly under a condition that the angle of the scrap chute is small, therefore the design limit of the mould is reduced, and the reliability of automatic production is improved.

An actuator assembly that includes, in one example embodiment, a substrate with a bridge coupled between a first electrode and a second electrode on the substrate. A lithographically disposed flyer is positioned in proximity to the bridge. In a more specific embodiment, the actuator assembly further includes a lithographically disposed barrel that partially surrounds the flyer. A fireset is coupled to pins that extend through the substrate to the first electrode and the second electrode. The flyer further includes a three-dimensional surface adapted to flatten during flight. The flyer may be concave, convex, or may star shaped, may have perforations therein, or may exhibit another shape or other features.

Disclosed is a washing machine (100) comprising: a cabinet (110) including an upper cover (112) forming a rear portion of the upper surface of the cabinet (110); a tub (130) provided within the cabinet (110); a rotatable drum (140) provided within the tub (130); a detergent dispenser (300) located above the front portion of the tub (130) and exposed to the exterior of the washing machine; and a detergent dispenser cover (200, 400) opening and closing the upper surface of the detergent dispenser (300) exposed by the upper cover (112) and formed in front of the upper cover (112).

The invention relates to a digital to analog converter and a method for a digital to analog conversion, wherein the digital to analog converter comprises at least one analog output cell configured to selectively generate a partial analog signal in response to a partial digital input signal. The analog output cell comprises an analog output switching unit that comprises a current source connected in series to a first node of a retiming switch and a first switch element as well as a second switching element, both connected with respect to first nodes in parallel to a second node of the retiming switch and a switching logic configured to regulate the transmission of said partial analog signal to an analog cell output.

A boost PFC converter includes a rectifier, a converter and an output stage comprising an output capacitor where the DC output voltage is provided across the output capacitor. The rectifier includes four rectifying elements connected in a full bridge configuration where the upper two of these four rectifying elements are thyristors and where the lower two are diodes. In that the thyristors are controlled such as to be open for only a part of each half period of the input voltage, the amount of current per half period that is passed to the output capacitor is controllable and can be made very small. Accordingly, the charge current for precharging the output capacitor can be controllably limited such that a bulky precharge resistor is not required anymore to avoid high inrush currents.

There is provided a PTC device wherein its PTC element functions appropriately even when the PTC device is used in an environment in which solvent is present. The PTC device includes: (1) a polymer PTC component including a polymer PTC element and a first and a second metal electrodes disposed on both sides of the main surface thereof; (2) a lead connected to at least one of the metal electrodes of the polymer PTC component; and (3) a ceramic package having an open-ended space for accommodating the polymer PTC component, said open-ended space having at least one opening that defines the open-ended space. The lead closes said opening in order to isolate the polymer PTC component disposed in said open-ended space from the environment surrounding the ceramic package.

The invention discloses a pipeline dredging and flow guiding tool for water conservancy construction. The pipeline dredging and flow guiding tool for water conservancy construction comprises a rotating head, an outer cylinder, an inner cylinder, a core body part and a back end cover; the rotating head comprises a conical shell-shaped body, the inner side wall of the body is provided with cutter teeth, the outer side wall of the body is provided with blades, and the length of the blades is gradually decreased from the large end of the body to the small end of the body; water outlet pipelines are arranged in a backward extending mode in the length direction of a core cylinder; the portion nearby the cavity bottom of a water injection cavity of the inner cylinder is provided with jetting holes used for jetting out water flow, and the water flow jetted out from the jetting holes exactly impacts the blades to drive the rotating head to conduct rotating cutting; and a conical thrust cone iscoaxially installed in the core cylinder in a hung mode, the cone tip of the thrust cone faces the small end port of the body, and an impeller used for enabling air to quickly flow towards a back portof the core cylinder is coaxially installed on the end face of the thrust cone. The device is high in dredging capability and extremely high in dredging efficiency.