70results about How to "Simple device design" patented technology

Abstract A catheter placement device (see FIG. 2) includes a needle unit, which in an initial position is releasably engaged with a housing distal end and has a sharp needle passing through a catheter and protruding distally of it. There is also a telescopic protector including guard unit, which is sliding in a housing guide. After inserting the needle into patient's vein, operator one-handedly pushes the guard unit distally, thereby emplacing the catheter, displacing the protector into a full length position and locking therein, and passively disengaging the needle unit from the hosing by a trigger cam located on the guard unit. As a result, a retracting spring moves a needle into retracted position, wherein it is protected from any contact with personal. Then, operator disconnects the guard from the catheter, turns the housing and occludes the catheter entrance with a cap, which was detachably mounted on the housing.

An I/O address translation apparatus and method for specifying relaxed ordering for I/O accesses are provided. With the apparatus and method, storage ordering (SO) bits are provided in an I/O address translation data structure, such as a page table or segment table. These SO bits define the order in which reads and/or writes initiated by an I/O device may be performed. These SO bits are combined with an ordering bit, e.g., the Relaxed Ordering Attribute bit of PCI Express, on the I/O interface. The weaker ordering indicated either in the I/O address translation data structure or in the I/O interface relaxed ordering bit is used to control the order in which I/O operations may be performed.

An energy filter device for beams which are used in the course of ion beam therapy, wherein at least one passive modulator is provided. The modulator comprises a scattering film for the beams and a collimator with an opening for controlling the beams.

The invention relates to a dressing aid which is intended for the infirm or persons with reduced motor skills. The inventive aid is of the type which facilitates said persons in pulling an item of clothing (5) onto the lower limbs of the body. The aid, which consists of at least one flexible strap (1) having a clamp piece (2) disposed at one of the ends thereof, comprises means of gripping the clothing to be worn and means of positioning said clothing (5) on the desired parts of the body. Said aid consists of two flexible straps (1), each of said straps comprising a clamp piece (2) at one of the ends thereof and a grip means (8) at the other end of same. Moreover, said straps are connected transversely at the central part thereof by means of a centre strap (3).

A micro-electro-mechanical system (MEMS) mirror device has a mirror, a frame rotatively coupled to the mirror, and a uniaxial actuator rotatively coupled to the frame where the rotational axis of the actuator is offset from the rotational axes of the mirror and the frame. Another MEMS mirror device has a mirror, a frame rotatively coupled to the mirror, and a biaxial actuator rotatively coupled to the frame where the actuator is able to rotate about the rotational axes of the mirror and the frame with the mirror.

The invention relates to a method and a device for pseudo-differential transmission through interconnections used for sending a plurality of electrical signals.

An interconnection having 4 transmission conductors and a return conductor distinct from the reference conductor cannot be modeled as a uniform multiconductor transmission line. Each end of the interconnection is connected to a termination circuit. Three damping circuits are connected between the return conductor and the reference conductor. The transmitting circuits receive at their inputs the signals from the 4 channels of the two sources, and are connected to the interconnection. The receiving circuits are connected to the interconnection, each receiving circuit being such that the signals of the 4 channels of a source connected to a transmitting circuit in the activated state are sent to the four channels of the destinations, without noticeable echo, internal crosstalk and external crosstalk.

The invention discloses a one-time injection molding method for a totally-cladded plastic product. The one-time injection molding method for the totally-cladded plastic product comprises the following steps that (1) before injection, a mold core (1) to be cladded is fixed in the middle of a mold cavity (11) to be formed after mold assembly by means of a plurality of supporting rods (12) which are symmetrically arranged; (2) mold assembly is conducted, molten resin (14) is injected from a nozzle (13), and the amount of the injected resin meets the condition that the mold cavity is gradually filled with the resin but not completely filled with the resin; and (3) in the later injection state during which the injection amount reaches a certain value or the pressure maintaining stage, the supporting rods (12) are made to retreat from a mold to positions (121) flush with the edge of the mold cavity by means of a core-feeding and core-retreating device, residual resin (14) continues to be injected into the nozzle (13), and the core-feeding and core-retreating device is controlled through a second hydraulic system which is additionally arranged in an injection molding machine, namely the injection molding machine comprises a first hydraulic system used for controlling injection molding and the second hydraulic system used for controlling the core-feeding and core-retreating device; and (4) injection is ended, the mold is opened after being cooled, and the product (2) is taken out.

A PWM controller device of a simple cooling fan includes a fan motor, a driver device, and a PWM controller device. The driver device is electrically connected to the fan motor. The PWM controller device is electrically connected to the fan motor and the driver device. The driver device internally detects the temperature rise variation of the electronic element and drives the fan motor to rotate in high speed. When the fan motor remains in high rotational speed as the temperature of the electronic element decreases, a PWM signal is input to the PWM controller device, which responsively generates a voltage-drop signal to drive the fan motor to its reduce rotational speed. The PWM controller device achieves control similar to that of a MCU, reduces manufacturing costs, and reduces over all physical size of the cooling fan. The invention is suitable for use in compact electronics.

Apparatus and method for testing a device wafer having a plurality of devices formed thereon. One embodiment of the invention provides an interface wafer comprising a plurality of contact pads disposed on a first surface for contacting a plurality of device pads on the device wafer and a plurality of interface pads disposed on a second surface for contacting probe needles on a probe card, wherein the plurality of interface pads are electrically connected to the plurality of contact pads and wherein the plurality of interface pads are disposed in a relaxed-pitch arrangement as compared to the plurality of contact pads.

A device for cleaning at least one optical surface of at least one camera, a camera system and a camera holder including such a device and a method of using the device, the camera system and/or the camera holder.

An adjustable ultrasonic coupling agent automatic squeezing device comprises a squeezing module, a detection module, a connection module and a control module. The connection module can connect other modules together, an ultrasonic probe can be fixed on the connection module, the squeezing module uses a mechanical structure to squeeze a coupling agent bottle to squeeze out a coupling agent, and thecoupling agent is delivered to an agent outlet close to the ultrasonic probe through a pipeline of the connection module to move along with the probe and can be smeared on the body of a detected person; the detection module can utilize gas pressure change, resistance change or friction force change to indirectly judge smearing volume of the coupling agent to control output of the coupling agent or can only detect temperature; the control module can realize full-automatic control on output of the coupling agent manually or according to the detection module and can manually or automatically control heating power and on-off of the coupling agent according to temperature data of the detection module.

The invention provides a resonant type permanent magnet linear generator comprising stator structures and rotor structures. The rotor structures are arranged in magnetic shield casings of the stator structures and are positioned on the other sides of the magnetic shield casings, which are opposite to the stator structures. Each rotor structure also comprises a rotor substrate and a chute structure, wherein the rotor substrate is positioned between the chute structures; each chute structure comprises a reversing spring, a resonant spring, a U-shaped chute and a roll ball; the roll ball is arranged in the U-shaped chute; the rotor substrate is clamped in the U-shaped chute; the end part of the rotor substrate is in contact with the roll ball and slides in the U-shaped chute up and down; twoends of the two U-shaped chutes are correspondingly connected by a connecting plate; the reversing springs are respectively arranged at two ends of each of the two U-shaped chutes; and the resonant springs are respectively arranged between the substrates and two connecting plates. The resonant type permanent magnet linear generator disclosed by the invention has the advantages of simple structure, low cost, high generated electrical energy and easiness of constructing, carrying and integrating.

The invention relates to a method and a device for transmission through interconnections used for sending a plurality of electrical signals.

An interconnection having 4 transmission conductors and a reference conductor cannot be modeled as a uniform multiconductor transmission line. Each end of the interconnection is connected to a termination circuit. The transmitting circuits receive at their inputs the signals from the 4 channels of the two sources, and are connected to the interconnection. A transmitting circuit in the activated state produces modal electrical variables, each modal electrical variable being allocated to one and only one channel. The receiving circuits are connected to the interconnection, each receiving circuit being such that the signals of the 4 channels of a source connected to a transmitting circuit in the activated state are sent to the four channels of the destinations, without noticeable echo and internal crosstalk.

Method and apparatus for testing a plurality of devices on a device wafer. One embodiment provides a test circuitry wafer having a first surface and a second surface, the test circuitry wafer comprising a plurality of contact pads disposed on the first surface for contacting a plurality of device pads on the device wafer, a plurality of interface pads disposed on the second surface for contacting probe needles on a probe card and one or more test features disposed in the test circuitry wafer, wherein the one or more test features are electrically connected to at least one of the contact pads and the interface pads.

An optical device for automobile vehicles, notably a signalling and/or lighting device.

The device comprises at least one surface-emitting light source,

• • at least one lens, notably distant from the surface-emitting light source, disposed at least partially on the path of the light (R) emitted by the surface-emitting light source so as to produce an image of an object area of the surface-emitting light source.

A hydraulically operated handheld device and a method of operating same are provided. The device includes a hydraulic pump, a moving part, a fixed part and a return valve with an associated valve seat. The moving part is moved into a working position due to the buildup of a hydraulic pressure by filling a hydraulic chamber with hydraulic medium from a reservoir with the aid of the hydraulic pump. The moving part can be automatically moved back from the working position into an end position upon reaching a predefined working pressure by opening the return valve. The hydraulic pressure acting upon the return valve is increased by a separately triggerable pressure increase, which results in opening of the return valve, in a hydraulic medium volume located upstream of the return valve in a flow direction of the hydraulic medium during the movement into the end position.

The invention discloses an automatic mass collection method for a soil spectrum and a special collection apparatus. The collection apparatus comprises a support platform, a sample rotation disk, a sample cup, a plane bearing, a stepping motor and an optical probe, wherein the plane bearing is arranged on the middle portion of the upper end of the support platform, the sample rotation disk is arranged on the plane bearing, and is provided with a plurality of round holes along the edge of the circumference, the sample cup can be placed inside the round hole arranged on the sample rotation disk, the stepping motor is arranged inside the support platform, the stepping motor and the sample rotation disk form shaft coupling through a center hole arranged on the center of the sample rotation disk, and the optical probe is arranged just above the round hole arranged on the sample rotation disk. According to the present invention, design of the whole apparatus is simple, manufacturing cost is low, an automation degree of the soil spectrum collection is high, and the apparatus is suitable for spectrum collection and analysis of indoor mass soil samples.

The invention discLoses an uLtrasonic coaL-bed gas desorption extraction drainage method. The method comprises the foLLowing steps that 1, according to actuaL engineering conditions, an injection-drainage type uLtrasonic coaL-bed gas desorption extraction drainage device and support equipment are seLected, wherein the support equipment comprises a driLLing machine with the aperture matched with that of a protective pipe head, a Liquid pump with the matched capacity and workLoad, a Liquid injection pump, a sLag-Liquid separation tank and an extraction pump; 2, the uLtrasonic coaL-bed gas desorption extraction drainage device is connected with the Liquid pump, the Liquid injection pump, the sLag-Liquid separation tank and the extraction pump in sequence; 3, the injection-drainage type uLtrasonic coaL-bed gas desorption extraction drainage device stretches into a gas extraction channeL for testing, and it is ensured that aLL the parts normaLLy work; 4, the pLugging Length is determined according to requirements, and pLugging mud is put inwards for seaLing; 5, according to the procedure, water is injected; 6, water is drained according to the procedure; 7, aLL the devices are turned off, the pLugging mud is removed, the injection-drainage type uLtrasonic coaL-bed gas desorption extraction drainage device is removed, and work for one gas extraction channeL is finished.