41results about How to "Simple and clear design" patented technology

Drive circuit for a blower motor employs a microprocessor control element, a controlled rectifier to provide DC power at a controlled rail voltage, and an inverter employing a pair of switching transistors arranged as a bridge inverter or half-bridge inverter. The drive circuit operates over a range of blower speeds and varies both the frequency and amplitude of bipolar pulses that are applied to the blower motor armature.

A power controller for applying power to an induction motor or similar AC load has a variable drive circuit for staring and switching a portion of the AC input line power. In one mode, the input line power is fed straight through to the load. In another mode, the AC waveform is reshaped to improve the power factor or to boost its RMS value, e.g., for brownout protection. In a further mode the output power can be provided at a different frequency from the input line power. Vector control increases efficiency through power optimization, with sensing of load requirements. Sensing of regeneration pulses at the commencement of a half cycle can be employed for direct sensing of motor speed or load.

A beam shaping antenna matrix for use in wireless cell towers that is manually-configured at a patch panel by a wireless operator based on selection of a desired beam size and point of direction. The traffic matrix allows a wireless operator to sculpt and resculpt the beams to accommodate demographic or other changes preferably without a large amount of hardware or intensive processing capability.

A snowshoe has a pivoted mounting on its boot harness, for rotation about a pitch axis for a first degree of freedom in movement of the user's boot relative to the snowshoe; and provision for a second degree of freedom of motion along a roll axis, allowing the user's boot to tip from side to side, particularly for uneven or sidehill terrain. In both axes the boot preferably is spring-biased toward a neutral position. At the same time, freedom of movement is restricted and essentially prevented between the boot and snowshoe relative to a third axis, the yaw or vertical axis. Several different structural arrangements are disclosed in several types of snowshoes, for achieving the second degree of freedom.

The buffer arrangement according to the invention comprises a slide path (6) for a workpiece carrier (3). Preferably, the slide path (6) is coil-like wound and supported on a central column (15). The slide path (6) comprises preferably at least one slide track (7, 8) and possibly one or several guide tracks (9, 10). The workpiece carriers (3) slide on the slide tracks (7, 8) preferably with the front sides of the centering and clamping bolts disposed on the slide tracks (7, 8).

Disclosed herein is an improved high-efficiency solar-charging electric window candle comprising a base adapted to sit securely upon a window sill. The base includes a footer formed with a battery compartment accessible through a bottom hatch, and a riser protruding upwardly from the footer with upwardly inclined side surfaces. The riser also has a compartment for enclosing a circuit board, and a vertically-oriented collar. A rechargeable battery is mounted in the footer of said base, and a hollow cylindrical candle body is inserted in the collar of the base riser, and a bulb assembly comprising a white LED is mounted atop the candle body. A circuit board is enclosed in the riser and includes two circuits: a current pump for supplying a pulsed current, and a photosensing circuit for sensing ambient light levels. The charge pump circuit reduces current requirements of the white LED, and the photosensing circuit automatically detects ambient light levels and illuminates the white LED while disconnecting the rechargeable battery, or vice versa, depending on whether there is sufficient ambient light.

Disclosed herein is a shotgun choke with integral wad-stopping feature for use with an existing shotgun. The choke generally comprises a hollow cylinder having (an) a coupling for securing it to the muzzle end such as an external series of screw threads proximate one end for screw-insertion to the muzzle end of an existing shotgun, and an internal channel defined by an overall taper running from the inserted end to the output end to constrict shotgun pellets passing there through. The wad-stopping feature is accomplished with a series of raised internal projections or steps (raised from the internal walls of the channel), the projections being spaced throughout the tapered channel to retard and separate a traveling wad from the shot when passing there through.

Disclosed are an antenna and a communication device including the same. The antenna includes a feeder, a first loop antenna that has an end connected to the feeder and the other end connected to a ground, and a second loop antenna that has an end connected to the feeder and the other end connected to the ground, and has an electrical length different from that of the first loop antenna, wherein an impedance matching line having a discontinuously different line width is formed in a partial area of the first loop antenna.

The invention discloses bin packing equipment for solar cells, and belongs to the technical field of novel energy sources. The technical scheme includes that the bin packing equipment for the solar cells comprises a worktable, conveying mechanisms, a lifting platform, a turnover mechanism and a lever pushing mechanism; the conveying mechanisms, the lifting platform, the turnover mechanism and the lever pushing mechanism are arranged on the worktable. The bin packing equipment has the advantages that the conveying mechanisms are drum type conveying mechanisms which comprise carrier rollers and electric drums, the quantity of driving drums can be reduced, the quantity of driving devices such as motors and speed reducers and the quantity of complicated mechanisms such as mounted bearings can be reduced owing to the electric drums, the bin packing equipment is simple and clear in design, and the manufacturing cost can be lowered; the height of the lifting platform can be flexibly and stably controlled by a cylinder, accordingly, the work efficiency and the turnover stability can be improved, and work fatigue can be relieved.

The invention relates to an electronic industrial wastewater near zero release water treatment process. A basic solution directly enters a water tank to be stored, and a physical and chemical agents is added into the water tank once every month; the basic solution treated in the second step is conveyed into a storage water tank through a pipeline, and the basic solution sequentially enters a PAC adjusting pond and a PAM adjusting pond through a lifting pump; the basic solution treated in the third step enters an MBR through a pipeline, and clear liquid obtained after membrane separation through the MBR enters a filter; filtrate enters a clear water tank through a pipeline, the filtrate is sequentially conveyed into a primary one-segment RO and a nanofiltration system to be filtered by the clear water tank through a pipeline, concentrated liquid separated by the nanofiltration system is recycled to the clear water tank through a pipeline, clear liquid separated by the nanofiltration system enters a secondary RO to be separated through a pipeline, and clear liquid separated through the secondary RO enters denitrification resin to be reused. Effluent reaches or is superior to corresponding water use indexes, and a treatment facility can run stably and reliably for a long time. By the adoption of the reasonable and effective treatment process technology, the economical efficiency, reasonability and effectiveness of overall construction investment are guaranteed, and meanwhile the running and using cost is reduced to the greatest extent.

A binding-in and pressing machine (1) with a plurality of pressing stations (60) and heated joint forming rails situated on a reciprocating carriage (50). An alignment station (20) is provided for aligning the book case joints (2a) at the height of the joint forming rails (49a, b), including a height-adjustable alignment table (21) with rails (22, 23) for supporting the book (2) on the outer edges of its spine and guide elements (28, 6) for centering the book on the alignment table. A separate pre-forming station (40) is also provided that comprises the forming rail (51), clamping plates (41a, b), and joint rails (48a, b) that engage into the book case joints (2a) and counteract a downward movement of at least the book case joints (2a). The books (2) aligned in the alignment station (20) are transferred into the pre-forming station (40) while being clamped in lateral regions near the joints. The effective times available for realizing a functionally safe alignment and a permanent pre-forming of the books are extended due to the assignment of the alignment and pre-forming functions to two separate stations.

The invention relates to an integrated optical fiber melting module which comprises a melting base and a platform cover which are buckled mutually, wherein two fiber winding zones for winding fibers are arranged on the melting base, a welding zone for welding the optical fibers is arranged between the two fiber winding zones, and gaps are reserved among the welding zone and the two fiber winding zones. Upper fiber storing rails and lower fiber storing rails are arranged in the fiber winding zones and partitioned through a plurality of fiber blocking plates. An external optical fiber enters into a welding platform positioned in the middle directly through the upper fiber storing rails and is welded with a distribution tail fiber on the welding platform. The distribution tail fiber passes through coiled paths of the upper fiber storing rails and the lower fiber storing rails and an adapter clamping seat to be connected with users. Different from the conventional design that an optical fiber distribution plate and a welding plate are split, the integrated optical fiber melting module integrates the optical fiber distribution plate and the welding plate, coiled paths of the external optical fiber and the distribution tail fiber are independent to each other and are not overlapped, and therefore, convenience is brought to uses to perform on-site operation.

A regular hexagonal paper box relates to a paper vessel manufacturing method. The method includes taking a piece of regular hexagonal paper and making a box bottom regular hexagon in the middle of the paper; making three parallel line negative fold lines parallel to the paper sides of the regular hexagon to form a first isosceles trapezoid between the closest parallel paper sides; folding the first isosceles trapezoid to enable the regular hexagonal paper to be changed to an irregular hexagon; making a long positive fold line, a short positive fold line, an angular bisector negative fold line and a long side intersection point connection line negative fold line; conducting folding according to the short positive fold line, the long positive fold line and the angular bisector negative fold line to form the preliminary shape of the regular hexagonal paper box, wherein the portion higher than the box sides is a second isosceles trapezoid; folding the second isosceles trapezoid towards the box outside to form the regular hexagonal paper box. The regular hexagonal paper box made by the regular hexagon paper is visual and easy to understand and simple and clear in design. The folding lines are clear and regular. The box body is sturdy and attractive in modeling.

A rotor assembly for mounting a rotor to a motor shaft having a rotor with a centrally positioned central bore, the diameter of which is slightly larger than a diameter of the motor shaft, a first stepped bore intersecting the central bore and being aligned along a first axis of the rotor, and a second stepped bore also intersecting the central bore and being aligned along a second axis of the rotor. A first cam fastener is disposed within the first stepped bore, and a second cam fastener is disposed within the second stepped bore. Upon rotating the first and second cam fasteners, they engage the motor shaft thereby securely clamping the rotor to the motor shaft.

Disclosed are an antenna and a communication device including the same. The antenna includes a feeder, a first loop antenna that has an end connected to the feeder and the other end connected to a ground, and a second loop antenna that has an end connected to the feeder and the other end connected to the ground, and has an electrical length different from that of the first loop antenna, wherein an impedance matching line having a discontinuously different line width is formed in a partial area of the first loop antenna.

A cyclonic portable vacuum cleaner / dust collector has a cyclonic chamber and a filter chamber. The filter chamber contains a filter cartridge with a hollow core positioned over the discharge opening of a motor plate that closes the filter chamber. A vacuum blower is mounted on the motor plate, with an intake tube at the discharge opening of the motor plate. An anti-deflagration screen mounted upon the discharge opening of the cover plate of the filter chamber. The anti-deflagration screen is in the form of a metal mesh creating a multiplicity of small passages to permit exhaust air flow from the filter chamber but blocking any flame front. The screen may be hemispherically domed.

A regular hexagonal paper box relates to a method for making a paper vessel. Take regular hexagonal paper, and make a regular hexagon at the bottom of the box in the middle of the paper; make three parallel lines that are parallel to the regular hexagonal paper sides and reverse the folding lines, and form the first isosceles trapezoid between the nearest parallel paper side; fold the second One isosceles trapezoid, regular hexagonal paper changes into non-equilateral hexagonal; make long positive fold line, short straight fold line, angle bisector reverse fold line, long side intersection connecting line reverse fold line; according to short positive fold line, long positive fold line and The corner bisector is folded against the folding line to form the preliminary shape of a regular hexagonal carton, and the extra part higher than the side of the box is the second isosceles trapezoid; the second isosceles trapezoid is folded to the outside of the box to form a regular hexagon Paper box: regular hexagonal paper box is made of regular hexagonal paper, which is intuitive and easy to understand; the design is simple and clear, and the folding lines are clear and regular; the box body is strong and beautiful in shape.

A shock absorber includes a cylinder; a piston dividing the cylinder into first and second chambers, the piston being movable within the cylinder in inward and outward directions; a first main channel and a first main non-return valve allowing a first main fluid flow from the second to the first cylinder chamber; a second main channel and a second main non-return valve allowing a second main fluid flow from the first to the second cylinder chamber; a comfort channel allowing an auxiliary fluid flow between the first and second cylinder chambers; and a comfort valve providing an open connection for the auxiliary fluid flow through the comfort channel in a rest position of the comfort valve and closing off the auxiliary fluid flow at increasing pressure difference across the comfort valve at either inward or outward movement to influence an auxiliary fluid flow between first and second piston sides.

The invention provides a novel method for designing a communication protocol of high-voltage and direct-current (HVDC) thyristor valve base electric equipment. Based on the controller area network (CAN) protocol, the communication protocol between a pole control system and the valve base electric equipment is set according to different working conditions of a thyristor valve, and information exchange between the valve base electric equipment and the pole control system can be completed by adopting a serial coding mode. The design is simple, clear, reliable and stable, and contains all the basic working conditions of thyristor valve operation. Byadopting the communication protocol, besides the basic communication requirement between the pole control system and the valve base electric equipment can be met, the strong interference resistance of a CAN bus can be introduced to a thyristor valve secondary control system to greatly improve the operation reliability of the system. A multi-master CAN networking communication mode is adopted between the valve base electric equipment and a control protective system, and valve base electronics (VBE) can monitor status changes at any time occurring in the thyristor valve and report the detection information to the control protective system. The networking mode ensures real time performance of monitoring the valve by the VBE.