61results about How to "Prevent airflow" patented technology

A device for manipulating intrathoracic pressures comprises a compressible bag structure, and an interface member coupled to the bag structure. A one way forward valve is coupled to the bag structure to permit respiratory gas to flow to the patient when the bag structure is compressed. A one way exit valve is employed to allow respiratory gases to be pulled from the person's airway upon decompression of the bag structure to produce a negative intrathoracic pressure.

Devices, systems, and methods are disclosed which relate to a catheter cap which seals a reservoir of a catheter introducer. The catheter cap secures over an introducer tip to prevent airflow into the introducer tip. The catheter cap utilizes an elongated stem to block a distal opening of the reservoir to further prevent airflow. A lip of the catheter cap may further engage an insertion stop point of the catheter introducer to secure the catheter cap. The catheter cap ensures proper lubrication of the introducer tip and the catheter during insertion of the catheter into the urethra of a user.

A thrust reverser comprises a translating sleeve, a torque beam, a plurality of cascades, a plurality of blocker doors, and a plurality of actuators. The translating sleeve is positioned at the rear of an aircraft nacelle and is translated rearward during thrust reverser deployment. The torque beam is positioned within the nacelle and configured to prevent airflow into the nacelle during thrust reverser deployment. The plurality of cascades are positioned around the circumference of the torque beam during thrust reverser stowage and are translated rearward during thrust reverser deployment. The plurality of blocker doors are positioned in alignment with the plurality of cascades and direct airflow through the plurality of cascades during thrust reverser deployment. The plurality of actuators are coupled to the forward edge of the sleeve and configured to translate the sleeve rearward during thrust reverser deployment.

Many holes are formed in a platen that is so disposed as to confront a printing head. A suction fan disposed under the platen generates suction force through the holes formed in the platen to thereby bring a paper into close contact with a surface of the platen. On a back surface of the platen, disposed is an airflow restriction plate formed with openings that correspond to a part of the holes in the platen. Before a leading edge of the paper arrives at the platen, the airflow restriction plate closes the holes. In association with a conveyance of the paper, the airflow restriction plate moves in a paper conveyance direction on the back surface of the platen and, at the same time, opens the closed holes sequentially from upstream in the paper conveyance direction. This can restrict inflow of air into the holes located downstream, in the paper conveyance direction, of the leading edge of the paper.

A structural frame (12) for dissipating heat from an electronic device (10) is provided. The structural frame (12), to which an electronic circuit board (14) containing a heat generating electronic component (16) is mounted, is injection molded from a thermally conductive, net-shape moldable polymer composition. The electronic component (16) that is within the device (10) is in thermal communication with the structural frame (12), so that the heat generated within the device (10) is transferred to the frame (14) and dissipated from the heat-generating device (10). An outer case (22) may be mounted to the frame (12) to finish the device (10) or the frame (12) may serve as all or a part of the outer device case (22) as well. In addition, the structural frame (12) has characteristics that may be engineered and used to shield the device (10) from electromagnetic interference.

A mounting apparatus for fixing an expansion card includes a connector configured for engagingly receiving a bottom portion of the expansion card, and a latching member made by thin strip material. The latching member includes a top wall, and two sidewalls extending down from opposite sides of the top wall configured for sandwiching the expansion card therebetween. An elastic tab extends between the sidewalls from the top wall, configured for elastically resisting against a top of the expansion card. A clipping portion is formed on a bottom of each sidewall, to engage with the connector.

A mounting apparatus includes a connector for engagingly receiving a bottom portion of an expansion card, and a latching member. The latching member includes a main body and a latching portion connected to the main body for engaging an end of the expansion card. The main body is formed by a metal wire and includes two arms. A foot extends from each of the arms and is pivotably connected to the connector adjacent the end of the expansion card.

A hygiene-maintaining device of an underpressure-activated valve (2) for a drinking receptacle. Whilst in position of use, the valve (2) encloses a downstream side of an outlet opening (12) in a partition (6) associated with the drinking receptacle. The partition (6) may be a wall portion of the drinking receptacle, or a wall portion of a cap (4) for the receptacle. The valve (2) comprises a movable operating member, a bracing element (24, 70) and a seal member (22) that, whilst in position of rest, seals off said partition opening (12). The operating member is connected to a suction chamber (50) within which an underpressure (P2) may be established in order to activate and move the operating member into a valve-opening position. Thereby, liquid may flow out via the partition opening (12) and further onwards through a liquid outlet path in the valve (2), the operating member being pressure-balanced against the ambient pressure (P1) of the drinking receptacle. The suction chamber (50) is connected to at least one activation opening (52) through which the underpressure (P2) in the chamber (50) may be established. The distinctive characteristic of the invention is that the suction chamber (50) is separated from said liquid outlet path through the valve (2), which fully or partially prevents liquid residues from entering into the suction chamber (50) so as to create subsequent unhygienic conditions therein.

The computer cover is a specially constructed cover for computers adapted to cover the entire computer case or monitor, including the vents and fans. The cover is constructed using a durable polyester material containing a plurality of uniform micron openings. The material may be treated with a hydrophobic process. The resulting material is water repellant, yet filters out dust and debris without detrimentally hindering airflow. The computer cover has a sleeve for wire and port protection in the rear of the computer and a flap positioned to allow access to the computer disk drives. The sleeve has a strap for tightening the sleeve around the wires. The flap, when closed, completely seals and protects the disk drives.

A device for manipulating intrathoracic pressures comprises a compressible bag structure, and an interface member coupled to the bag structure. A one way forward valve is coupled to the bag structure to permit respiratory gas to flow to the patient when the bag structure is compressed. A one way exit valve is employed to allow respiratory gases to be pulled from the person's airway upon decompression of the bag structure to produce a negative intrathoracic pressure.

A solar panel assembly including a solar panel spaced from a surface to create a gap and a barrier movable between an open position and a closed position, the barrier being adapted to inhibit airflow through said gap below said solar panel when in the closed position. The assembly may further include a rack supporting the solar panel and resting on the surface. The barrier may be adapted to move from the open position to the closed position upon detection of conditions indicative of a fire. In this way air flow below the solar panel is permitted during normal operation of the solar panel assembly but is inhibited upon detection of a fire.

A mounting apparatus for mounting a memory card to a printed circuit board (PCB) includes a connector mounted on the PCB and a fixing member. The connector defines a slot in a top surface for electrically receiving the memory card. An ear protrudes from each of opposite end surfaces of the connector and defines a through hole. The fixing member includes a bar abutted against a top of the memory, two legs respectively extending down from opposite ends of the bar to abut against opposite ends of the memory card, and two deformable latches respectively extending from distal ends of the legs and engaged in the corresponding through holes.

In a vehicle package tray (100) disposed in the back of a rear seat of a vehicle, a sheet-shaped glass fiber mats (108), in which urethane resin (110) is impregnated, are overlapped on both surfaces of a semi-hard urethane foam layer (102), a front surface material (104) is overlapped on the surface of one glass fiber mat (108), in which the urethane resin (110) is impregnated, via a first adhesive film (106), back material (114) is overlapped on the surface of the other glass fiber mat (108), in which the urethane resin (110) is impregnated, via a second adhesive film (112), and the multi-overlapped object obtains a sound absorbing performance by being formed into a three-dimensional shape by being pinched and fixed by a press die, heated, pressurized, and thereby fused.

A Mechanical Ventilation Heat Recovery (MVHR) system for a building having a roof with at least two pitched slopes facing in different directions, the MVHR system comprising a Heat Recovery Unit (HRU) for receiving and exchanging heat between a flow of ambient air from outside the building and a flow of building air from within the building, the HRU being connected by fluid flow conduits to first and second ports located on different pitched slopes, in which a flow diverter is provided in the conduits between the HRU and the ports, the flow diverter being switchable between a first state in which ambient air flows from the first port to the HRU and into the building and building air flows from the HRU to the second port to be exhausted from the building, and a second state in which ambient air flows from the second port to the HRU and into the building and building air flows from the HRU to the first port to be exhausted from the building. The system can be combined with photovoltaic solar cells and / or an air source heat pump and / or a ground source heat pump system.

A windbreaker for a motorcycle prevents airflow between the front wheel assembly and the fairing connected to the handlebars, by flexibly connecting to the handlebars and the crash bars. An indentation allows airflow to cool the engine. Releasable connectors allow proper turning of the front wheel, even if mis-mounted.

A ceiling-embedded air conditioner includes: a decorative panel; a turbo fan; a heat exchanger; an air suction path; air blowoff paths; an air suction opening and air blowoff openings that are provided in the decorative panel; corner panels disposed at corner portions between the adjacent air blowoff openings; a human sensor that is provided on a specific corner panel; a wind guide path that flows conditioned air blown from the air blowoff openings; and windbreak ribs that are erected from the specific corner panel to suppress direct strike, on the human sensor, of the conditioned air flowing from the wind guide path to the specific corner panel.

An exemplary mounting apparatus includes a connector and two latching mechanisms connected to two opposite ends of the connector. The connector defines a slot in a top surface thereof, and two sliding grooves in two opposite side surfaces thereof. Each sliding groove extends though the two side surfaces. Each latching mechanisms includes a guide pin and a latching member. The guide pin is slidably received in a corresponding sliding groove. The latching member includes a latching portion for engaging with an expansion card, two feet connected to two ends of the guide pin, and two connecting arms each connected between one end of the latching portion and a corresponding foot. When the guide pin is pulled by the latching member to move from a bottom end to a top end of the sliding groove, the expansion card is pushed out of the slot of the connector by the guide pin.

A heat dissipation device for an electronic unit includes a heat sink (10), a pair of fan holders (30, 40) and a fan (50) mounted on the heat sink via the fan holders. The heat sink includes a base (11) with a plurality of fins (15) extending upwardly therefrom along a lateral direction thereof. The base forms a pair of lateral walls at two opposite lateral sides thereof. The fins are sandwiched between the lateral walls. A pair of supporting plates (17) extend from the lateral walls for mounting the fan holders on the heat sink. The fan holders cooperate with the lateral walls of the heat sink to encompass a top of the fins to prevent airflow generated by the fan from escaping from the top of the fins.

In a vehicle package tray (100) disposed in the back of a rear seat of a vehicle, a sheet-shaped glass fiber mats (108), in which urethane resin (110) is impregnated, are overlapped on both surfaces of a semi-hard urethane foam layer (102), a front surface material (104) is overlapped on the surface of one glass fiber mat (108), in which the urethane resin (110) is impregnated, via a first adhesive film (106), back material (114) is overlapped on the surface of the other glass fiber mat (108), in which the urethane resin (110) is impregnated, via a second adhesive film (112), and the multi-overlapped object obtains a sound absorbing performance by being formed into a three-dimensional shape by being pinched and fixed by a press die, heated, pressurized, and thereby fused.

The invention discloses an elevator with an air self-purification function. An air purification mechanism is arranged in a car and comprises a rack, an electrolysis mechanism, an ultrasonic vibrator and a diffusion mechanism. The electrolysis mechanism comprises a water storage chamber used for storing water, a salt water storage chamber used for storing salt water, an extracting and mixing unit, an airflow inductor, a first control unit and an electrolyzer. The extracting and mixing unit is used for extracting the water of the water storage chamber and the salt water of the salt water storage chamber and mixing the water and the salt water in proportion. The airflow inductor is used for inducting the intensity and direction of airflow in the elevator. The first control unit is used for determining the mixing proportion of the water and the salt water according to the intensity and direction, inducted by the airflow inductor, of the airflow, and is connected with the extracting and mixing unit. The electrolyzer is used for electrolyzing a mixed solution of the water and the salt water, and connected with the extracting and mixing unit. Air can be effectively purified, the purification effect is good, and effective purification treatment can be achieved on every corner of the elevator in an omnibearing manner.

A method and system for determining the pressure in a brake booster used to actuate a brake system having at least one main brake cylinder. The brake booster connected in a fluid-conducting manner by a non-return valve to an intake manifold of an internal combustion engine. A reduced pressure loss in the brake booster resulting from actuation of the main brake cylinder is balanced with the reduced pressure gain in the brake booster as a result of a pressure difference between the brake booster pressure and the intake manifold pressure. The reduced pressure gain in the brake booster is determined based on time the air mass flow between the brake booster and the intake manifold.

A mounting apparatus for mounting a memory card to a printed circuit board (PCB) includes a connector mounted on the PCB and a fixing member. The connector defines a slot in a top surface for electrically receiving the memory card. An ear protrudes from each of opposite end surfaces of the connector and defines a through hole. The fixing member includes a bar abutted against a top of the memory, two legs respectively extending down from opposite ends of the bar to abut against opposite ends of the memory card, and two deformable latches respectively extending from distal ends of the legs and engaged in the corresponding through holes.

A dimming control system includes dimmer modules that receive dimming level information from one of at least two control modules. Each dimmer module includes a microprocessor that provides internal intelligence for controlling power to a load in response to dimming level information. Control modules receive industry standard protocol dimming information from various sources, convert it to dimming level information, and serially communicate the dimming level information to the dimmer modules. Dimmer modules and control modules are mounted in a rack which includes a backplane having a nonvolatile memory device that retains configuration data even if control modules are removed from the rack. An inactive control module can assume control of the rack when an active control module fails.

A fan includes a housing and a motor. The housing has a compartment, at least one lateral air inlet and at least one lateral air outlet. The lateral air inlet and lateral air outlet communicate with the compartment. The motor has a stator and an impeller. The impeller is coupled with the stator and includes a hub and a plurality of blades coupled with a top face of the hub. Each blade has first and second ends. The first ends of the blades face outwards, and the second ends of the blades define an air-guiding room encompassed by a virtual geometric pattern formed by a virtual line linking the second ends of the blades. The virtual geometric pattern has a maximal diameter. A gap is formed between the second ends of two adjacent blades. The gap is smaller than the maximal diameter of the virtual geometric pattern.

The invention relates to a vacuum regulator (1) for maintaining a substantially constant vacuum in a vacuum system (2). The vacuum regulator (1) includes a main valve arranged to control a supply of air to the vacuum system (2). The main valve includes a valve seat (3) defining a passage (4) arranged to lead air to the vacuum system (2) and a valve body (5) moveably arranged in a direction between a closed position and a maximally open position in order to regulate the size of a minimum flow area (18) between the valve seat (3) and the valve body (5). A force (19) caused by the vacuum acts on the valve body (5) in a direction towards the closed position. The valve seat (3) and the valve body (5) have such a design, that the value of the force (19), in a continuous way, increases with the degree of opening of the valve body (5).