3909results about How to "Avoid fire" patented technology

A surgical instrument includes an E-beam firing bar engages the channel and selectively engages the anvil during distal firing movements, wherein the tissue is severed and stapled driven upward from the staple cartridge to form against the anvil. In particular, a wedge integral to the staple cartridge is driven distally by a middle pin of the firing bar to effect stapling. A single lockout of the staple channel responds to the presence of the wedge sled in its unfired position to allow the firing bar to fire. Otherwise, the single lockout prevents firing when the staple cartridge is missing or spent. Further, some versions include an Electroactive Polymer (EAP) actuator that presents an abutting surface, or acts as a trapdoor to a ramped recess in a staple channel to block the firing bar, as an active approach to preventing firing for one or more conditions.

A linear surgical stapler adapted for applying a plurality of surgical fasteners to body tissue includes an anvil structure and a cartridge housing containing a plurality of surgical fasteners. The cartridge housing and anvil structure are relatively movable between a first spaced apart position and a second position in close approximation with one another. A firing mechanism is associated with the cartridge housing for ejecting the surgical fasteners from the cartridge housing to be driven against the anvil structure. A lockout mechanism interacts with the cartridge housing for selective activation and deactivation. The lockout mechanism includes a swing gate tab secured to the cartridge housing at a position adjacent a lockout lever, such that firing of the linear surgical stapler rotates the swing gate tab releasing the lockout lever for preventing further firing of the used cartridge housing.

A rotating surgical stapler having a proximal end and a distal end includes a handle at the proximal end and an end effector at the distal end for selective rotation to improve access to tissue requiring treatment and ease of use of the present linear surgical stapler. A support shaft connects the handle to the end effector and includes a longitudinal axis. The end effector is coupled to the support shaft for rotation about a longitudinal axis of the stapler.

A biopsy system is provided including a housing and a biopsy instrument operatively associated with the housing and configured and dimensioned to remove a tissue sample from a patient. A firing module is included that is detachably engageable with the housing and operatively associated with the biopsy instrument to facilitate selective rapid advancement of at least a portion of the biopsy instrument toward a targeted location with the patient. The biopsy instrument includes a tissue receiving portion. The system may include an indexing assembly disposed within the housing and configured to cooperate with the biopsy instrument to selectively orient the tissue receiving portion. The indexing assembly may include a manual gearing assembly configured for selective orientation of the tissue receiving portion. The system may include a linear advancement control assembly disposed within the housing and configured to effect linear actuation of a tubular knife member. An optical sensor may be disposed adjacent a portion of the tubular knife member and oriented to detect the orientation of a lateral opening formed through the tubular knife member. A carriage may be slidably disposed within the housing and configured to releasably retain at least a portion of the biopsy instrument. A method of performing a surgical biopsy is disclosed.

A surgical instrument includes an E-beam firing bar engages the channel and selectively engages the anvil during distal firing movements, wherein the tissue is severed and stapled driven upward from the staple cartridge to form against the anvil. In particular, a wedge integral to the staple cartridge is driven distally by a middle pin of the firing bar to effect stapling. A single lockout of the staple channel responds to the presence of the wedge sled in its unfired position to allow the firing bar to fire. Otherwise, the single lockout prevents firing when the staple cartridge is missing or spent. Further, some versions include an Electroactive Polymer (EAP) actuator that presents an abutting surface, or acts as a trapdoor to a ramped recess in a staple channel to block the firing bar, as an active approach to preventing firing for one or more conditions.

A rotating surgical stapler having a proximal end and a distal end includes a handle at the proximal end and an end effector at the distal end for selective rotation to improve access to tissue requiring treatment and ease of use of the present linear surgical stapler. A support shaft connects the handle to the end effector and includes a longitudinal axis. The end effector is coupled to the support shaft for rotation about a longitudinal axis of the stapler.

A linear surgical stapler adapted for applying a plurality of surgical fasteners to body tissue includes an anvil structure and a cartridge housing containing a plurality of surgical fasteners. The cartridge housing and anvil structure are relatively movable between a first spaced apart position and a second position in close approximation with one another. A firing mechanism is associated with the cartridge housing for ejecting the surgical fasteners from the cartridge housing to be driven against the anvil structure. A lockout mechanism interacts with the cartridge housing for selective activation and deactivation. The lockout mechanism includes a swing gate tab secured to the cartridge housing at a position adjacent a lockout lever, such that firing of the linear surgical stapler rotates the swing gate tab releasing the lockout lever for preventing further firing of the used cartridge housing.

To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting / disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC / DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.

A pouch type secondary battery has a safety vent which prevents explosion and fire by removing a sealing mechanism of a pouch casing when the internal temperature increases due to overcharging, overdischarging or over-heating, and which exhausts internal gas before explosion and fire of the battery when the internal gas pressure excessively increases due to overcharging, overdischarging or internal short-circuit. The pouch type secondary battery includes an electrode assembly having positive and negative electrode plates with a separator interposed therebetween, and positive and negative electrode terminals extending from the positive and negative electrode plates, respectively, a pouch casing having a space in which the electrode assembly is housed to be sealed, a seal portion provided at the periphery of the space, and at least one of the positive and negative electrode terminals exposed to the seal portion, and at least one opening member disposed at the seal portion and made of a resin material having a lower melting point than a melting point of the seal portion of the pouch casing.

A method for regulating an internal combustion engine that is operable, at least in a part-load range, in an operating mode with auto-ignition and a combustion process of which is influenced by a manipulated variable, the method includes the steps of determining a desired value of a combustion position feature of the combustion process; determining the manipulated variable by predictive closed-loop control based on a modeling of the combustion position feature as a function of the manipulated variable in the combustion process; and determining, as the manipulated variable, a value at which the difference between the desired value of the combustion position feature and a model-based predicted combustion position feature is minimized.

A surgical instrument including a handle assembly, a safety mechanism, an elongated body portion and a head portion is disclosed. The handle assembly includes a stationary handle, an approximation mechanism, and a firing trigger. A lever of the safety mechanism is movable between a first position where the firing trigger is prevented from being actuated, and a second position where the firing trigger is able to be actuated. A first jaw member of the head portion is movable in relation to a second jaw member of the head portion between spaced and approximated positions. Movement of the first jaw member in relation to the second jaw member from the approximated position towards the spaced position causes the lever of the safety mechanism to move from its second position to its first position.

In a data communication system, data is transmitted from a control device to a communication interface and from there via a communication bus to additional communication interfaces of trigger devices. The communication interface on the control device side has inputs, to which signals from said control device and a disarming switch can be assigned. The disarming switch can be circumvented by a bypass switch which is controlled by the control device. The state of the signal at the inputs of the communication interface on the control device side is transmitted to coresponding outputs of the communication interfaces of the triggger devices. A trigger device has a safety unit which is used to test at least one trigger unit, when the state of the signal of the outputs authorizes such a test and the trigger voltage source is not yet charged wth the full trigger voltage. In said state, the safety unit also blocks triggering as soon as the trigger voltage has been reached. The inventive system ensures a high degree of functional safety and flexibility.

The invention discloses an overhead rail type firefighting inspection robot system. The overhead rail type firefighting inspection robot system comprises an overhead rail part, overhead rail type firefighting inspection robots, fire extinction equipment, a position identification block, a charging position, a remote control center and wireless signal transmission equipment. Each overhead rail type firefighting inspection robot comprises a traveling part, a lifting vision device, a position detection device, a detector, a fire extinction control device and a control and communication device. The robots move on a rail of the overhead rail part. The position detection devices conduct positioning by identifying the position identification block. The robots can be charged at the charging position. The fire extinction control devices operate the fire extinction equipment. The control and communication devices achieve communication of the robots and the remote control center through the wireless signal transmission equipment. The robots of the overhead rail type firefighting inspection robot system can conduct inspection detection along the rail, find out equipment failures and potential safety hazards and can conduct fire extinction operation in time.

The invention discloses a nanostructured quasi-solid electrolyte applied to lithium ion batteries or lithium sulfur batteries and a preparation method and application thereof. The nanostructured quasi-solid electrolyte is a macro solid-state electrolyte material which is formed by an inorganic-organic hybrid framework material adsorbing ion conductive agent. The preparation method of the nanostructured quasi-solid electrolyte is as follows: in protective atmosphere, the inorganic-organic hybrid framework material is soaked in the ion conductive agent and sufficiently mixed, and redundant solvent is then volatilized. The prepared nanostructured quasi-solid electrolyte with high lithium ion conductivity can be substituted for both organic electrolyte and diaphragms in conventional lithium ion batteries, and thereby safety problems caused by the leakage of the organic electrolyte can be effectively prevented; a lithium battery assembled from the electrolyte can use a metal lithium plate as a cathode.

The invention relates to detection of fault arc, wherein, fault arc cycle is recognized through at least two wave characters by gathering current waveform of each cycle; the fault arc is verified through judging whether a plurality of continuous fault arc cycles exist; if the waveform not only meets the condition that the amplitude is smaller than that of normal current or phenomenon of flat shoulder exists on a zero crossing point but also meets the condition that the waveform of positive and negative half cycles is asymmetric or di / dt is overlarge at a certain moment, then the cycle is estimated as a fault arc cycle; if a plurality of cycles continuously are estimated as fault arc cycle, then the fault arc is verified. Compared with the prior art, the technical proposal of the invention has the advantages that the fault arc can be detected during the process of normal power supply; the power can be automatically cut off within very short period, and simultaneously the fault arc current and the starting impulse current can be distinguished; the spurious trip rate is reduced.

The invention is concerned with the electricity surge protector with proper motion monitoring, includes the SPD body, the signal collector, the processer and the memory cell, there into, the memory cell on the in or outside of the processer can protect the standard configuration of the SPD; the processer, connecting the signal convertor to process the SPD state from the collector to obtain the operating state data, and it can compare the data and the standard configuration with the advanced designed information, at the last, to analyze the result and give remain to the users and / or control the action of the SPD.

A paintball gun trigger system includes a trigger, an emitter arranged to emit light and collector arranged to receive an amount of the light that varies with the position of the trigger and produce a signal that varies with the position of the trigger. A controller is arranged to determine from the signal when the trigger has been pulled and released. In one embodiment, the light beam from the emitter is pulsed on and off and the signal from the collector is sampled at regular intervals. Variations in the pulsed collector signal are used to detect when the trigger has moved to a pulled position and a released position, and when the collector is swamped with light from another source.

A self-contained gimbaled weapon system (GWS) has a shared azimuth axis and two independent elevation axes for a sighting device and a weapon cradle. The GWS allows the weapon cradle to be elevated completely independent of the sighting device. The GWS can be stabilized and operated remotely.

The invention relates to electronic cured tobacco, which comprises an oil storage tank, an atomizing device and a tobacco curing device, wherein the oil storage tank is filled with an extracting agent; the tobacco curing device comprises a heating mechanism and a heated cavity for accommodating cigarettes or tobacco leaves; the heating mechanism comprises a heating element and a heating circuit for controlling the heating element to heat to a set temperature range; the air inlet end of the heated cavity is communicated with the air outlet end of the atomizing device; the air outlet end of the heated cavity is connected with a suction nozzle port; and in the smoking state, the atomizing device is used for atomizing the extracting agent and feeding the extracting agent into the heated cavity, heat released by the heating element acts on cigarettes or tobacco leaves in the heated cavity for curing nicotine out, and nicotine is mixed with the mist extracting agent and is sucked out of the suction nozzle port. After the structure is adopted, mist nicotine is easily absorbed by lungs, so that most of gas sprayed by a smoker is an ingredient of the extracting agent, environmental pollution and passive smoking can be prevented, and the mouthfeel of the smoker is satisfied.

A firearm safety device invention for handguns is disclosed. The safety device (10) prevents accidental firing of a gun by children, but is easily removable by an adult in 5 to 10 seconds even in pitch darkness. The safety device includes a lock sleeve (26) with an expandable end plug (30) which is inserted through the muzzle (16) of a gun barrel (14). With the end plug positioned in the firing chamber, a lock rod (24) is inserted into the lock sleeve to force expansion of the linear slotted (32) end plug sufficiently to prevent the safety device from being removed from the barrel. Withdrawal of the lock rod from the lock sleeve to allow removal of the safety device is prevented by a knurled cap (22) which is threadedly attached to a knurled enlarged end portion (28) of the lock sleeve. Since the safety device is able to rotate freely in its assembled position in the gun, any attempt to unscrew the knurled cap without holding the enlarged end portion of the lock sleeve stationary will be unsuccessful. A child will not be able to remove the knurled cap since he or she will hold the gun in one hand while fiddling with the knurled cap with the other hand.

To avoid burning out a capacitor in a synchronous rectification type DC-to-DC converter due to overvoltages, the synchronous rectification type DC-to-DC converter includes a storage unit storing therein power derived from a power supply, switching elements connecting and disconnecting respective signal paths from power and ground, and a control unit controlling the connecting / disconnecting operations of the switching elements to maintain a voltage output from the storage unit at a predetermined value. The DC / DC converter also includes an overvoltage detecting unit monitoring a voltage derived from the power supply to thereby output an alarm signal when the voltage derived from the power supply exceeds a preselected voltage value, a shortcircuiting unit influencing the connecting conditions of the switching elements when the alarm signal from the overvoltage detecting unit is input therein, whereby the voltage derived from the power supply is shortcircuited, and an interrupting unit interrupting one of the signal paths by the power shortcircuited by the shortcircuiting unit.

The invention discloses a preparation method of an irradiation cross-linking polyethylene porous diaphragm. According to the method, the polyethylene porous diaphragm is soaked in and adsorbs a volatile solvent containing initiator and cross-linking agent to lead initiator and cross-linking agent into the surface and the interior of the polyethylene porous diaphragm, and is then treated with irradiation cross-linking underwater or under the protection of inert gas, and a locally cross-linked diaphragm is obtained by controlling the cross-linking condition. The irradiation cross-linking lithium-ion battery diaphragm has the advantages that the tensile strength and the hydrophily are greatly improved; the high-temperature hot-shrinkage rate is greatly reduced; the defect of low membrane rupture temperature is overcome; the membrane rupture temperature is greatly raised while the normal hole closing of the diaphragm is guaranteed; the hole closing temperature of the diaphragm is 120 to 140 DEG C; the membrane rupture temperature is raised to be higher than 160 DEG C.

The invention belongs to the technical field of power batteries, and especially relates to a power battery top cover and a power battery using the top cover. The power battery top cover comprises a top cover sheet, and a firs pole pillar, a second pole pillar, a pressure release valve, a liquid injection hole, pneumatic overturning sheets and a resistor block, the first pole pillar is in insulation connection with the top cover sheet, the second pole pillar is electrically connected with the top cover sheet through the resistor block, the pneumatic overturning sheets are electrically connected with the top cover sheet, the conductive block is arranged above the pneumatic overturning sheets, a baffle plate is arranged under the pressure release valve, the pneumatic overturning sheets comprise a first pneumatic overturning sheet and a second pneumatic overturning sheet, and the thickness of the first pneumatic overturning sheet is smaller than the thickness of the second pneumatic overturning sheet; and when the pressure in the power battery increases, the pneumatic overturning sheet and the second pneumatic overturning sheet sequentially move upward in order to electrically connect the first pole pillar with the second pole pillar. Compared with power battery top covers in the prior art, the power battery top cover disclosed in the invention makes the power battery have an excellent safety protection function in overcharging, nailing, short circuit and hot box test.

A feedback electronic load of high frequency isolated single-phase electric energy in multi-input channel modularization mode is prepared for forming each DC voltage conversion module by connecting high frequency conversion circuit and high frequency transformer as well as high frequency rectification circuit in sequence, forming inverter unit by connecting inverter and AC filter with each other, then connecting DC output end of DC voltage conversion module to DC input end of inverter unit.

A safety mechanism dedicated to a single-action type firearm, equipped with a firing system using a hammer, presented in a kit form, capable of factory assembly on the firearm, or adaptation to a firearm already in service, comprising:said hammer striking the firing pin of the firearm when firing;a hammer ring working with the hammer;a trigger-activated sear, which, during firing, releases the hammer ring;a hammer strut including a hammer spring which is compressed to cock the hammer and which, when firing, propels the hammer ring, causing the hammer to strike the firing pin;a cocking lever, which may be left / right, and which is activated manually to release the active safeties by releasing the sear, the hammer and the slide;a return spring, to return the hammer backwards into the cocked position, ready to fire single action,a cocking lever spring;a hammer spring, which is fixed thanks to a pin to the hammer strut;a pin fastened to the cocking lever anda sear spring.

Methods and apparatus are provided for fire suppression in an energy storage device. The apparatus comprises an energy storage device having a housing, a first container adapted to be at least partially filled with a fire-suppressing substance, the first container in selective fluid communication with the interior of the housing, and a control system comprising a sensor, the control system adapted to place the first container in fluid communication with the interior of the housing in response to a signal from the sensor.

The invention discloses a robot cable gallery field fire early warning and fire extinguishment method, device and system. The method comprises the steps that whether to receive a warning signal or notis judged; if not receiving the warning signal, a fire protection inspection robot conducts automatic inspection, receives tunnel internal environment information and crucial location temperature information, compares the tunnel internal environment information and the crucial location temperature information with set fire threshold values and generates a fire signal or conducts field fire risk assessment; if receiving the warning signal or generating the fire signal during automatic inspection, the robot conducts fire pre-identification according to the risk analysis and assessment result, optimizes fire pre-identification at the early smoldering stage, rapidly positions the location of a pre-identified fire source, determines the authenticity, performs the fire extinguishment task and then safely evacuates after completing the task. Through the robot cable gallery field fire early warning and fire extinguishment method, device and system, the capabilities of conducting fire safety pre-warning and fire warning, rapidly searching for the fire source and extinguishing the fire for a cable gallery (tunnel) are greatly improved.