Abstract: A method of pivoting an aircraft storage bin that includes a bucket that pivots with respect to an upper housing. The method includes pivoting the bucket from a closed position to an intermediate position and placing weight that exceeds a predetermined weight threshold in the bucket, thereby causing the bucket to move to an open position. Movement of the bucket to the open position causes a lift assist unit to activate. A first end of the lift assist unit is connected to the bucket and a second end of the lift assist unit is connected to the upper housing. The method also includes pivoting the bucket from the open position to the closed position. The lift assist unit provides assistance as the bucket is pivoting from the open position to the closed position.

Abstract: A stowage bin assembly includes a bin bucket assembly having a bin bucket which includes at least one sidewall, the at least one sidewall including a notch and the at least one sidewall having an interior surface. The stowage bin assembly also includes at least one hinge assembly. The at least one hinge assembly includes a housing which is received in the notch, the housing having an interior surface, wherein the interior surface of the housing is substantially flush with the interior surface of the at least one sidewall when the housing of the at least one hinge assembly is received in the notch. The stowage bin assembly also includes a stowage bin door pivotably coupled to the bin bucket assembly via the at least one hinge assembly, the stowage bin door moveable between an open position and a closed position. Related components, assemblies, and devices are also provided.

Abstract: An automatic door stopping-closing device comprises a cylinder with a connecting rod, one end of which is connected to a door; a bracket assembly on the door frame, comprising a hook connected with the other end of the rod, a movable lug cooperated with the hook, and a pull rod cooperated with the movable lug, wherein the pull rod and the hook can be engaged or disengaged. After the door is opened, the door can be kept open securely through the cooperation between the hook and the movable lug; and the door can be closed automatically by a slight push, through the cooperation between two of the hook, the movable lug and the pull rod. The automatic door stopping-closing device holds the door open without external force after the door is opened, and closes the door automatically after a slight push.

Abstract: A suspension element includes a main body having an end cap defining an internal volume and a tubular element slidably engaged with the main body. The suspension element further includes a first piston and a flow control element. The flow control element is configured to prevent movement of the tubular element relative the main body in a direction. The suspension element may further include a locking member and a piston. The locking member may be configured to engage a barrier of the main body when the first piston traverses at least a predetermined distance towards the end cap. The locking member may be affixed to the tubular element and may fully surround the tubular element. Together the flow control element and the locking member are configured to prevent movement of the suspension element.

Abstract: A linear actuator is disclosed. The linear actuator comprises a cylinder portion and a base portion. The cylinder portion comprises a housing defining internally a compression chamber for containing a fluid and comprising a piston assembly that can reciprocate within the compression chamber. The housing further defines a cylinder port in fluid communication with said compression chamber. The base portion defines a first base port and a second base port and a passage extending therebetween fluidly communicating the first base port with the second base port, and comprises valve means operable to control the flow of fluid through the second base port, in which the valve means is actuatable between an open condition in which the flow of fluid through the second base port is permitted, and a closed condition in which the flow of fluid through the second base port is substantially prevented.

Abstract: A transforming top drive vehicle having a passenger compartment and a separable base is disclosed. One or more hydraulic cylinders are positioned between the compartment and the base to provide force sufficient to raise the compartment. Concentric pipes having sufficient strength to support the compartment are installed with one end connected to the vehicle's base and the other connected to the passenger compartment. The vehicle allows ease of access and the ability to lower the vehicle's center of gravity when navigating rough or uneven terrain and, when the operator is interested in obtaining a better view of wildlife or otherwise increase the field of vision, the passenger compartment can be raised either incrementally or to its fully raised position.

Abstract: A gas strut includes a housing, a piston assembly, a dye, and a dye containment seal. The housing includes an inner surface defining a chamber extending along a centerline. The chamber includes a working portion and a dye storage portion disposed axially adjacent to the working portion. The piston assembly is constructed and arranged to reciprocate within the working portion, and the dye is located in the dye storage portion. The dye containment seal is disposed in the dye storage portion, and is constructed and arranged to transfigure from a normal state to a dye release state thereby releasing the dye upon the piston assembly.

Abstract: The invention relates to an overhead luggage compartment for aircraft, comprising: a tray for accommodating pieces of luggage, which tray can be pivoted about an axis of rotation between a closed position and an open position; and comprising a housing, which encloses the tray in the closed position and which has devices arranged thereon for fastening to a supporting structure of the aircraft and has a suspension device for a passenger service unit; and comprising a closure element for holding the tray in the closed position. The housing is formed by two frame parts arranged lateral to the tray, which frame parts are connected to each other by means of cross-braces, and the fastening devices and the suspension device for the passenger service unit and at least one stop element for limiting the open position of the tray are arranged on the frame parts.

Abstract: A door closer includes: a cylinder secured on a door frame and having a cylinder head formed on a proximal end of the cylinder; a main value and a check valve respectively formed on the cylinder head to control the air in-and-out volume through the valves for lightly opening the door; a piston secured to a rod member slidably reciprocating within the cylinder with the rod member secured to a door; a restoring spring secured between the cylinder head and the rod member for normally resiliently restoring the rod member and the piston towards the cylinder head in order to close the door to the door frame normally as restored by the restoring spring; and at least a buffer member secured between the cylinder head and the piston so as to dampen the inertia force of the closing door to eliminate the noise or damage thus possibly caused.

Abstract: A damper device is configured so that a piston moves in a cylinder. A seal ring member is provided to the outer periphery of the piston to device the inside of the cylinder into a first chamber and a second chamber. A transmission member is connected to the piston and can transmit external force to the piston. A cutout section is formed with a predetermined circumferential width in a first stopper surface. A communication section has an opening in an annular outer peripheral section located closer to the second chamber than the cutout section. When the seal ring member is pressed toward the first stopper surface, the seal ring member is deformed so as to partially enter the cutout section.

Abstract: Provided is a retracting device which can decrease a difference of restoring force of a tension coil spring between a retracted position and a stop position. The retracting device of the present invention includes a base 12, a slider 14 which can catch a trigger 8 and move from the stop position to the retracted position with respect to the base 12 and a tension coil spring (B) for relatively moving the slider 14 which has caught the trigger 8 from the stop position to the retracted position with respect to the base 12 to apply force for assisting the closing operation to a sliding door 1. The tension coil spring (B) is an initially-tensioned spring in which a coil closely contacts and which has initial tension in a direction in which the coil closely contacts when it is in a natural length.

Abstract: A shock absorber including: a first cylinder having an interior, first and second ends and defining an axis, wherein the interior includes a damping fluid chamber and a damping piston movably mounted therein for movement between the first and second ends, wherein the damping piston is mounted on a first end of a shaft, wherein the first end of the shaft is movably retained within the interior of the first cylinder; first and second bypass openings configured for opening into the damping fluid chamber at first and second axially spaced-apart positions; a bypass channel fluidly coupling the first and second bypass openings; a fluid metering valve; and a floating piston dividing a portion of the shock absorber into a gas chamber and the reservoir chamber, wherein the fluid metering valve and the floating piston define the reservoir chamber there between.

Abstract: A device for restricting movement of a carriage that is used to convey vehicles and workers in an assembly line in a factory for assembling complete vehicles includes a hold-back device for the carriage which can prevent an accident caused by equipment failure and improves an operating rate by implementing a new conceptual hold-back system which allows a cam roller operated by a cylinder to come into close contact with a side surface of the carriage to rotate in a direction identical to a carriage movement direction, and provides a load to the carriage by using back pressure/discharged air from the cylinder so as to prevent an increase in gap between carriages.

Abstract: A friction based counterbalance mechanism for coupling with a closure panel to assist in opening and closing of the closure panel for at least a portion of a path between a fully closed position and a fully open position of the closure panel, the counterbalance mechanism including: an elongate member positioned on a longitudinal axis extending between the proximal and distal ends of the counterbalance mechanism, the elongate member having a peripheral surface, the elongate member having a proximal end for coupling to one of the closure panel and a body of a vehicle; a travel member having a body and at least one friction member mounted on the body, the travel member positioned on the longitudinal axis for reciprocation there along and for providing contact between the at least one friction member and the peripheral surface, said contact for generating a friction force in a first region along the longitudinal axis and in a second region along the longitudinal axis; and a support member coupled to the travel el

Abstract: A damper includes a piston provided with a rod, and a housing storing the piston, and generates a braking force by an operation of the piston. The piston is provided with a seal member relative to an inner wall of the housing; and a slider provided slidably relative to the piston, and contacting the inner wall of the housing with a predetermined frictional force. When the braking force is generated, the slider presses against the seal member, and a portion contacting the inner wall of the housing in the seal member deforms outwardly toward the housing.

Abstract: A pneumatic door closer includes a rotary energy-storing mechanism including a housing and a driving mechanism. The driving mechanism includes a cylinder, a second piston assembly and a sealing element, the sealing element is in an air tight connection with the cylinder and the second piston assembly, to form a closed space filled with high pressure gas in the cylinder. The second piston assembly drives the closed space into a first air chamber and a second air chamber in communication with each other. The driving mechanism also includes a first piston assembly connected to the second piston assembly. The pneumatic door closer also includes a transmission mechanism having one end received in the housing and another end connected to the door frame.

Abstract: A safety stop device for limiting the movement of a window or sliding door that is fitted with a glass pane. The safety stop has a housing with a top plate. The top plate is flat. Support walls extend from the top plate and terminate in a common plane. A protected area is defined between the support walls and under the top plate. A suction cup is disposed within the protected area. A suction control assembly is coupled to the top plate. The suction control assembly selectively controls air pressure within the suction cup when the suction cup is engaged with the glass pane.

Abstract: An apparatus and method for a piston head assembly for an R/C car shock absorber provides for variable dampening forces during compression movement based on how fast the piston is moving. During a first compression stroke, more fluid is allowed through the at least one variable valves, while during a second compression stroke faster than the first stroke, fluid movement is restricted through the at least one variable valves to quickly return the vehicle to proper riding position with respect to the road or track.

Abstract: A stopper mechanism includes a second cylinder disposed at an end in a first cylinder, a second piston disposed so as to be able to move according to a movement of a piston rod to be fitted into the second cylinder, and an annular piston ring having ends in a circumferential direction by being partially cut off. A circumferential groove is formed on an outer circumferential of the second piston. The circumferential groove includes a bottom surface, a one-side end surface, and an opposite-side end surface. The piston ring is axially movably disposed in the circumferential groove. The piston ring includes axial abutment portions, and radial abutment portions at the both ends of the piston ring. When the piston ring abuts against the one-side end surface of the circumferential groove, a first passage is forced between the one-side end surface and an end surface of the piston ring.

Abstract: The present disclosure provides a connecting device and an electronic apparatus having the same, which overcome the above deficiencies in related art, by using the connecting device, no matter where the rotating mechanism is rotated, the enclosing mechanism enclosing the outside of the rotating mechanism will always fit onto the rotating mechanism without any wrinkles or rig marks occur. A connecting device for rotatably connecting a first and a second bodies includes a rotating mechanism for rotationally connecting the first body and the second body together, wherein the connecting device further comprises an enclosing mechanism to enclose and cover at least a part of the rotating mechanism. The enclosing mechanism is attached to the first body and the second body respectively, and the degree of tightness of the enclosing mechanism varyies with the rotation of the rotating mechanism.

Abstract: A verification method of a fraudulent activity taking place at a self-checkout terminal is disclosed. The method verifies the fraudulent activity by confirming an incident of the fraudulent activity with multiple data generated by monitoring the transaction area and the bagging area of the self-checkout terminal. A human validation is optionally performed to verify machine-identified incidents.

Abstract: A storage compartment for a passenger cabin of an aircraft is provided. The storage compartment comprises a storage compartment body, a mounting, a fixing brace and a pull rod. The fixing brace is connected to a frame of the primary structure of an aircraft and to the mounting and takes up forces transversely to the direction of flight. The pull rod is connected to a stringer of the aircraft primary structure and also to the mounting and takes up forces in the direction of flight in such a way that even in the event of an impact event, only low torques are to be taken up by the supporting primary structure of the aircraft.

Abstract: A door closer components include a housing having a mounting plate, a tension member extending longitudinally within the central bore of the housing, a movable body within the housing connected to the tension member, a spring within the housing, and a hydraulic assembly for hydraulically controlling the longitudinal movement of the movable body. The hydraulic assembly is disposed within the central bore of the housing and includes a piston coupled to the housing and slidable in a fluid-filled chamber within the movable body, wherein the piston divides the chamber into two compartments. The piston has a valve mechanism which opens to permit relatively free movement of the fluid from one compartment to the other when the movable body is moved. The valve mechanism of the piston includes a boss fitted to a piston shaft and defining an annular sealing face and a longitudinally extending channel member integral with the boss.

Abstract: The present invention provides a horizontal door closer structure, comprising an outer sleeve pipe and an inner pipe which can slide relatively, wherein an end of the outer sleeve pipe is provided with a buffer device, an adjustment component for adjusting total inlet and outlet air, and a buffer assembly are arranged on the buffer device; a spring is arranged in the inner pipe, one end of the spring is connected to the inner pipe, and the other end thereof is connected to the buffer device; and the front end of the outer sleeve pipe and an end of the inner pipe are provided with locating components which are mutually matched. In the door closer structure, the compression spring is arranged in the inner pipe, thereby saving the space of a door closer, and the adopted buffer device plays a buffering role by adjusting the total inlet and outlet air, and can control the speed of opening a door.

Abstract: The invention relates to an emergency opening device for an aircraft door provided with an opening mechanism (10, 11, 17), said device comprising (i) a mobile maneuvering member (21-23, 35) urged by elastic compression means (20) and provided with an end piece (35) connecting to the opening mechanism of the door, and an opposing resetting end segment; and (ii) a member (26) for retaining the resetting segment (23) of the maneuvering member, comprising jaws (26a, 26b) that can move between a closed position in which the resetting segment is locked, in a maneuvering member position in which the elastic means (20) are compressed, and an open position in which the resetting segment is released, thereby allowing the movement of the maneuvering member under the resultant force from the expansion of the elastic means (20).

Abstract: A door closing device includes a cylinder body, a piston rod having one end extending out the cylinder body, and a locking unit including a casing, and a locking ring and an abutment member both disposed in the casing. The locking ring is disposed around the piston rod and is movable between inclined and non-inclined positions, where the locking ring engages and disengages the piston rod, respectively. A press unit is disposed on the casing and is movable between a pressed position, where the press unit presses the locking ring to move to the inclined position, and an unpressed position, where the press unit moves away from the locking ring. The abutment member abuts against the locking ring to keep the locking ring in the inclined position when the press unit is in the unpressed position.

Abstract: This dishwasher utilizes a rod 58 whose upper end is linked to the proximal end of a rotary arm 10, and compression springs 53 and 54 linked to the proximal end of the rotary arm 10 via the rod 58. Thus, even if the compression springs 53 and 54 break, the elastic force of the compression springs 53 and 54 themselves is maintained, and furthermore, the compression springs 53 and 54 continue to be supported by the lower end of the rod 58 in a state of being positionally restricted with respect to a dishwasher main body 2. This prevents a door 7 in an open state from suddenly falling.

Abstract: A strut assembly is provided including a holding and releasing mechanism adapted to be attached to a cylinder-type closer. The mechanism comprises the strut assembly including a strut cylinder, a strut rod, a pivot block, and a locking tube. The strut assembly further comprises a stop tube including a clip at a first end and a collar at a second end. The stop tube further includes a rigid angled ramp connecting the clip and the collar. The clip moves from a first position to a second position while pivoting the locking tube at a first end in order to engage the locking tube at another end with the strut cylinder thereby holding the strut assembly in an extended position.

Abstract: A door closer is provided to automatically pull a storm or screen door to a fully closed position without user action. The door closer includes a bracket housing with a cam switch movable along a track as the door opens and closes. The closer cylinder rod is engaged with the cam switch until the door is fully opened. The cam switch biases the closer cylinder and rod as the door approaches the closed position.

Abstract: A door operator includes an installation box, an operating mechanism, a pneumatic apparatus and a moveable sleeve. The installation box has a housing and a lid. The housing has an assembling space and an opening communicating with the assembling space; the lid is mounted in the opening and covers the assembling space. The operating mechanism is rotatably mounted in the installation box and has a gear. The pneumatic apparatus is installed in the assembling space and has a cylinder and a piston rod. The moveable sleeve is movably mounted on the cylinder and connected with the piston rod and engaged with the gear of the operating mechanism. Because a rotation axis of the gear and a central axis of the moveable sleeve are perpendicular to each other, the volume of the installation box can be reduced.

Abstract: A closing device for a furniture part having a carrier connected to the movable furniture part or the body part, and a closing lever which is impinged upon by a closing spring, the closing lever having a guide track for the carrier and being pivotable by the carrier when the movable furniture part is opened between a hold-closed position and a standby position, in which the carrier uncouples from the closing lever or which is stationary with respect to the movable furniture part for the carrier connected to the body part. A closing force is exerted by the closing lever onto the carrier as of a use position assumed by the carrier in the guide track. The distance of the carrier in the use position from the lever pivoting axis of the is at least 1.5 times the distance of the carrier in the closed position from the pivoting axis.

Abstract: A pneumatic door closer for closing a door having a controlled rate of closing that is generally uniform, smooth and safe. The door closer includes an elongated cylinder with a displaceable piston defining a vacuum chamber and a pressure chamber within the cylinder. A piston rod connected to the piston has its free end extending through a rod opening that includes an air impervious seal formed about the piston rod. A volume displacer placed within the cylinder adjusts the volume of the cylinder to better controlling door closing. Disposed in communication with the vacuum chamber is a breather arrangement for controlling the level of vacuum being created within the vacuum chamber during the closing stroke of the piston to control the resulting resistance forces acting on the piston such that the closing speed is substantially uniform throughout the closing stroke.

Abstract: The present disclosure discloses a door closer stopper, comprising a housing mounted around a door closer, a finger press block assembly and a stop assembly disposed in the housing. The housing is provided with a slot and an opening; The finger press block assembly comprises a press block and a rotary press block hinged to the slot of the housing, and a positioning mechanism limiting the rotary press block at a position propping a catch plate; The stop assembly comprises the catch plate with a central through hole to allow the pull rod of the door closer to extend therethrough, the catch plate is perpendicular to the pull rod and has a top end in a scope of movement of the rotary press block, the rotary press block can abut against the top end of the catch plate to make the catch plate incline when the rotary press block rotates to a certain position. The present disclosure is overly compact and reasonable in structure, simple and easy to operate, and practical, safe and reliable.

Abstract: A pneumatic door closer having an arming and latching mechanism that once armed permits a door to be held open by placing it in the desired open position and easily released by opening the door slightly, resetting the arming and latching mechanism permitting the door to be closed. A lever having a flat-profile spring over a substantial portion of its exterior surface is rotated into a position adjacent a latching washer causing the latching washer to canter upon a slight closure of the door, locking the door in an open position. Upon release of the door by further opening the door slightly, the cantered latching washer is released and a recoil spring causes the released latching washer to straighten or become uncantered, permitting a piston rod to move freely relative to the latching mechanism causing the door to close. The single piece lever and external flat-profile spring are easily manufactured and assembled and provides a reliable latching mechanism that can be conveniently operated with one hand.

Abstract: A damper unit which brakes the speed of movement of a moving body by using a piston damper provided with a cylinder and a piston rod which is connected to a piston inside the cylinder, is provided. The damper unit includes a case wherein the above-mentioned piston damper is disposed; a transmitting member slidably provided inside the case and transmitting an external force accompanied by the movement of the above-mentioned moving body; a link member whose one end side is attached to the above-mentioned case so as to become the rotational center, and also whose the other end side is pivotally supported by the above-mentioned transmitting member; and a connecting member connected between both ends of the link member and being in contact with or connected to either the piston rod or the cylinder.

Abstract: An air damper is provided which can exhibit an appropriate braking force in accordance with an input load. There is provided an air damper including: a tubular cylinder 1 in which both end portions are opened; a piston 2 which moves within the cylinder 1; and a cap 3 which closes a one-end opening of the cylinder 1, wherein the cylinder 1 has an annular seal surface 4 formed on a circumferential surface of the one-end opening, wherein the cap is mounted on the one-end opening side of the cylinder 1 so as to be moveable or deformable along an axial direction of the cylinder 1, wherein the cap is brought into contact with or separated from the seal surface 4 in accordance with a pressure change due to a movement of the piston 2 within the cylinder 1, and wherein a first orifice 14 is opened in a base plate 12 of the cap, characterized in that: a second orifice having an inlet area smaller than the first orifice is defined between the cap 3 and the cylinder 1 during an operation of the first orifice 14.

Abstract: A floor spring includes a case, a damper assembly received in the case, and mixed powder filling a space inside the case covering the damper assembly. The damper assembly includes a spindle extending outwardly from the case. The mixed powder can prevent water, dust, or insects enter the case, such that the damper assembly is not tend to rust or fail.

Abstract: A door closer capable of realizing self-control positioning has a cylindrical housing, a piston, a spring and a pull rod; the piston is built in the cylindrical housing and connected and fastened with one end of the pull rod; the pull rod is sheathed in the spring, and the two end parts of the spring respectively are in contact with a sealing lid of the piston and the cylindrical housing; the door closer further has a self-control positioning mechanism having a cylindrical outer sleeve a control part and a locking part; the cylindrical outer sleeve is connected and fastened with the cylindrical housing; the control part and the locking part are linked by a clutch and joined together; the locking part and the pull rod are linked by a clutch, and the pull rod is provided with a series of grooves which can be clasped with the locking part.

Abstract: A door closer includes a damping device having a cylindrical housing which has a compartment formed by an inclined inner peripheral surface and which includes a greater inner diameter at one end than the other end, a cap attached to the cylindrical housing and having an air perforation for an air to flow into and out of the cylindrical housing, a piston rod slidably engaged in the cylindrical housing, and a sleeve attached to the piston rod and having an outer diameter for engaging with the inner peripheral surface of the cylindrical housing at one end of the cylindrical housing, but not engaged with the inner peripheral surface at the other end of the cylindrical housing.

Abstract: A stop damper with a damper member including a receiving space inside which a piston is movably guided between an initial and an inserting position. The piston includes a bellows section and a sealing element, the sealing element resting on a sliding surface of the damper member and the bellows section being allocated to a rest section of the damper member at the initial position. To improve a damping characteristic of a stop damper, the rest section includes at least sectionwise a region that enlarges in the direction of the inserting movement of the piston.

Abstract: A system for assisting the linear movement of a pull-out component relative to a housing includes a first bracket coupled to a slide member of the housing, a second bracket coupled to the pull-out component, and a strut that is pivotally coupled to the first and second brackets at its respective ends. The strut includes an outer hollow member that houses a primary spring, a cylindrical piston that translates through one end of the outer hollow member, and a reverse damping mechanism. A free end of the primary spring is held inside the outer hollow member by a clevis for the first bracket, and its opposite end rests on the piston. The piston's free end includes a clevis for the second bracket. An inner hollow member houses a second spring which regulates movement of a damper shaft such that damping occurs when the shaft is pulled out of the damper.

Abstract: A door closer includes a damping device having a cylindrical housing which has a compartment formed by an inclined inner peripheral surface and which includes a greater inner diameter at one end than the other end, a cap attached to the cylindrical housing and having an air perforation for an air to flow into and out of the cylindrical housing, a piston rod slidably engaged in the cylindrical housing, and a sleeve attached to the piston rod and having an outer diameter for engaging with the inner peripheral surface of the cylindrical housing at one end of the cylindrical housing, but not engaged with the inner peripheral surface at the other end of the cylindrical housing.

Abstract: The present invention is a door closer for controlling the rate a door is closed. The door closer includes a tubular cylinder closed at a first end. Slidably mounted within the tubular housing is a rod assembly that includes a piston at a first end. As the rod assembly is moved through the cylinder, air is drawn into and expelled from the cylinder. A hold open bracket is mounted on the rod assembly for locking the position of the rod assembly with respect to the cylinder. A pair of springs is mounted on the rod, one on each side of the hold open bracket, to maintain the hold open bracket in a neutral position in normal operation. A cover is slidably mounted over the second end of the cylinder to move the hold open bracket to a locked position.

Abstract: The present invention relates to a door closer comprising a cylinder body and a telescopic rod, wherein a one-way air intake valve is provided in the cylinder body to take in air in one way in an internal cavity of the cylinder body when the door is opened. The internal cavity of the cylinder body is divided into two automatically pressurizeable and automatically compensatable air cavities. When the door is opened or closed, the air inside the internal cavity of the cylinder body flows cyclically in the two air cavities. The door closer ensures air substantially flows cyclically in a cylinder body, reduces pollution caused by dusts in air into and out of the cylinder body to the lubricant oil in the cylinder wall, guarantees the lubricating effect of the lubricant oil, enables the door closer to operate normally and effectively prolong the service life of the door closer.

Abstract: A door closing device for a door is described. The device includes an externally powered and/or spring force-powered catch device F for mounting to the stationary door frame TR or the door leaf TF. The catch device has a movably mounted catch element F and an externally powered and/or force storage means-powered drive assembly M connected to the catch element F. It is essential that the catch element F can be connected to and disconnected from the counterpart element, for example the lock latch S, so that the catch element F can be brought into engagement with the counterpart element S for pulling the door leaf TF shut and can be brought out of engagement with the counterpart element S outside of the pulling-shut movement.

Abstract: A pneumatic door closer with a protective external telescoping cylinder and angled handhold. Such a closer is generally outfitted with a structural tubular support that follows the telescoping and collapsing of the closer's piston and that has sufficient stiffness to limit the stresses imposed on the piston throughout its extension. The support provides a resistance to perpendicular force. Moreover, when the piston is collapsed within the exterior chamber, the support pivots to the exterior chamber with bushing(s) fixed to the end of the support that travel along the length of the exterior column as the closer telescopes or collapses, to permit continued smooth sliding motion throughout the extension stroke.

Abstract: A return device for a drawer employs an actuator to drive a slide block, when the drawer is pulled open, the slide block is moved into a positioning concave and positioned therein while stretching an elastic member. Or pushing the drawer back can make the slide block slide out of the positioning concave, meanwhile, the elastic member pulls the drawer back to its original position. Furthermore, since the angle between the slide surface of the positioning concave of the positioning member and the track is obtuse, it is easy for the slide block to slide in and out, so that the drawer can be easily positioned and unlocked from the positioned state.

Abstract: A door positioning system is provided. The system includes a first member and a second member. The first member is attached to an exterior door at a first end of the first member and to an anchor location at a second end of the first member opposite the first end. The first member includes a locking region. The second member is configured to engage the locking region of the first member if the exterior door is opened a first threshold amount. The second member and locking region are configured to hold the exterior door in an open position if the second member is engaged with the locking region. The second member and locking region are configured to disengage if the exterior door is opened a second threshold amount beyond the first threshold amount. The exterior door is able to close with the force of the door closer if the second member is disengaged from the locking region.

Abstract: A door closer including a rotating shaft coupled to a door leaf, including a cam disposed on the rotating shaft in a torque-proof manner and cooperates with a spring-loaded roller, such that, when opening or closing the door leaf, the roller rolls on a first running surface of the cam, and in that a second running surface of the cam cooperates with a damping device. The damping device consists of at least one pre-mounted damper which is self-contained and is insertable into the door closer.

Abstract: A door urging apparatus, for use with an existing door hingedly mounted in a frame, the door moving between a closed, a crossover, and open states, the door urging apparatus including an offset bracket with a base and an arcuate planar element having a proximal end that extends from the base and a distal end with a first pivotal attachment. Also included is a plate affixed to a frame portion opposite of the hinged mount, the plate having a second pivotal attachment. Further included is a gas spring assembly having a lengthwise cylinder with a telescoping rod, the gas spring provides a dampened force extending the rod outward. The gas spring is pivotally attached between the first pivotal attachment and the second pivotal attachment, wherein operationally the door is urged into the open state by the gas spring and is also urged into the closed state by the gas spring.