| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 016051000 | Liquid | 66 |
| 20100024158 | Regulating Valve - A regulating valve, which in particular is attachable in a bore of a hydraulic door closer formed with a female thread. The valve has a body, having an anti-rotation protection and a thread, which can be disposed in the female thread of the bore. A regulating area is attached to the body. The anti-rotation protection has at least one groove, which is disposed at the thread and accommodates an elastic element. | 02-04-2010 |
| 20100162521 | DEVICE FOR BUFFERING THE CLOSING IMPACT OF FURNITURE DOORS - Disclosed herein is a device for buffering the closing impact of furniture doors. A valve ( | 07-01-2010 |
| 20100223754 | Withdrawing mechanism - A withdrawing mechanism includes a striker disposed on one of a swingable member and a main body, a catcher disposed on the other of the swingable member and the main body to capture the striker moving, and a damper for applying a damping force to a turning operation of the catcher toward the turned position. The catcher is turnable between a standby position and a turned position. The catcher is biased toward the standby position when at a position closer to the standby position than an intermediate position between the standby position and the turned position and biased toward the turned position when at a position closer to the turned position than the intermediate position. The catcher includes a hooking groove for the striker on a surface extending substantially perpendicular to a rotary shaft thereof. The hooking groove faces an introduction port toward the front side in the standby position. | 09-09-2010 |
| 20110197391 | AUTOMATIC DOOR CLOSER STRUCTURE - An automatic door closer structure comprises a casing, at least one piston, at least one limiting member, at least one driving member connected with the piston and a shaft. The casing has an outside wall, a chamber, an inside wall and at least one first limiting portion. The piston slidably disposed within the chamber of the casing has an outer wall and a second limiting portion formed on the outer wall. The limiting member has a first end portion and a second end portion both are connected with the first limiting portion of the casing and the second limiting portion of the piston respectively to limit rotation of the piston. The shaft comprises a shaft body pivotally disposed in the casing and an eccentric cam contacts against the driving member. | 08-18-2011 |
| 20120144622 | RETURN DEVICE FOR A DRAWER - 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. | 06-14-2012 |
| 20120174337 | CLOSING DEVICE FOR A DOOR - 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. | 07-12-2012 |
| 20120272475 | Door Closer Comprising Additional Closing Spring - A door closer, in particular a hinge door closer, including a free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and a hydraulic lock compartment adapted to lock the closer spring. An additional closer spring acts on the piston assembly, in order to slightly load the piston assembly toward the closing direction when in free-swing mode. The additional closer spring is weaker than the closer spring. | 11-01-2012 |
| 20120311817 | Door closer, particularly for glass doors - A door closer for doors, particularly glass doors, which are supported by a stationary support structure (S) and are movable between an open door position and a closed door position. The door closer comprises a box-like body ( | 12-13-2012 |
| 20150052704 | OPENING/CLOSING ASSISTANCE DEVICE FOR OPENING/CLOSING DEVICE - An opening/closing assist device includes a cam fixed to a first member, which is one of an opening/closing body and a coupling subject of the opening/closing body, a contact element located on a second member, which is the other one of the opening/closing body and the coupling subject, and a damper stay. The damper stay includes a first end rotatably connected to the first member and a second end rotatably connected to the contact element. The contact element is maintained in the state of being pressed against the cam by means of the elastic force of the damper stay. The cam has a shape that is set so that a moment generated at the cam based on the elastic force applied by the contact element is generated so that a moment required to rotate the opening/closing body is in accordance with operation characteristics required for the opening/closing body. | 02-26-2015 |
| 016052000 | Concentric spring chamber | 21 |
| 20080229540 | Non-Handed Door Closer Cover Attachment Method - A cover for either a left-handed or right-handed operating automatic door closer including a body, and a pinion shaft extending from the top of the body, the cover comprising: a housing including a wall and an open rear, the wall having a rear edge and having therein first and second slots, each of the slots extending forward from the rear edge; and a clip including a base complementary to each of the first and second slots, and a flexible hook including a first end connected to the base and a floating second end, the base of the clip being insertable into either one of the slots so that the base substantially fills the one of the slots and the clip is secured to the wall of the housing with the hook positioned inside the housing and opening rearwardly; the housing with the clip inserted into one of the slots being positionable over the door closer with the hook of the clip receiving the door closer; wherein, when the housing is positioned over the door closer, the pinion shaft extends through the first slot and the clip is inserted in the second slot when the door closer is configured for left-handed operation, and the pinion shaft extends through the second slot and the clip is inserted in the first slot when the door closer is configured for right-handed operation. | 09-25-2008 |
| 20100031468 | RETRACTING MECHANISM AND FIXING STRUCTURE - A catcher ( | 02-11-2010 |
| 20100170062 | Door Damper - Disclosed is a door damper, in which a safety check valve is installed in consideration of the case in which an impact exceeding a design pressure will be applied, thereby absorbing the impact to enable a door to be closed safely and smoothly. In the door damper, a safety check valve is installed in a piston, and thus is opened in cooperation with another check valve installed between a spring holder and the piston when the pressure exceeding a design pressure is applied. Thereby, when the impact exceeding the design pressure occurs, the safety check valve can absorb the impact to prevent damage. A channel can be adjusted by only ridges formed on an outer circumference of the check valve, so that productivity can be improved thanks to easy tolerance management. Further, an oil seal is not contracted or deformed in spite of long-term use. | 07-08-2010 |
| 20100287729 | Hydraulic Door Closer - A hydraulic door closer including an elongated housing, a connection rod extending into the housing, a piston secured at an inner end of the connection rod within the housing and a spring positioned within the housing about the connection rod. A throttle valve and a check valve are formed in the piston and define a throttle-valve fluid passage and a check-valve fluid passage, respectively. Both fluid passages are configured to be open for passing a fluid through the valves and closed to stop the fluid flow. The check-valve fluid passage is larger than the throttle-valve fluid passage and is closed during door closing for restricted fluid flow slowing the door motion. A stopping/holding mechanism includes a piston groove, a rod groove and a positioning pin disposed between the piston and the connection rod. The piston groove is defined by the piston for retaining the entire positioning pin during door opening/closing motion. The rod groove is defined by the connection rod to receive a portion of the positioning pin when both grooves are moved into alignment to close both valves and block the fluid flow between the chambers to hold the door open. | 11-18-2010 |
| 20110252597 | SELF-ADJUSTING DOOR CLOSER - A self-adjusting door closer is disclosed. The door closer is self powered and includes a control unit to intelligently control a valve within the door closer to vary the operating characteristics of the door closer as needed. The controller includes a position sensor to determine a position of the door, and at least one input switch to enable user selection of at least one door closer parameter for an installed door closer. The control circuitry is operable to set the valve in response to the user selection of the door closer parameters, and the position of the door, in order to control force exerted by the door closer on the door. A generator can be provided to provide electricity to power the controller and store power to operate the controller. | 10-20-2011 |
| 20120198654 | Door Closer - 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. | 08-09-2012 |
| 20120233810 | Door Closer Having a Magnetic Distribution Valve - A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and solenoid control valve, in particular a 3/2-solenoid control valve. A closure damping compartment is formed between the door closer housing and the piston assembly on a side of the piston assembly facing away from the piston rod, and wherein the solenoid control valve controls at least the pressures in the closure damping compartment and in the lock compartment. | 09-20-2012 |
| 20120279013 | HYDRAULIC DIRECTIONAL SOLENOID VALVE AND DOOR CLOSER HAVING A HYDRAULIC DIRECTIONAL SOLENOID VALVE - A hydraulic solenoid control valve, including a valve housing, a valve chamber, having a first valve seat bore as a connection to a first line, a second valve seat bore as a connection to a second line, and a free aperture to a third line, a solenoid, and a valve spindle movable by the solenoid and partially arranged in the valve chamber. The valve spindle includes, a first sealing surface facing the first valve seat bore and a second sealing surface facing the second valve seat bore. The first and the second valve seat bores can be closed. The valve spindle protrudes from the valve chamber through the second valve seat bore toward the solenoid. When the second valve seat bore is closed, the valve spindle is pulled into the second valve seat bore by a differential-area-ratio through the pressure in the second line. | 11-08-2012 |
| 20140033476 | Hinge device for doors, shutters or the like - A hinge device for rotatably moving a closing element includes a fixed element anchorable to a stationary support structure coupled to a movable element anchorable to the closing element for rotating around a first longitudinal axis between an open position and a closed position. The device further includes at least one slider movable along a second axis between a compressed and an extended position. One between the movable element and the fixed element includes at least one operating chamber defining the second axis so as to slidably house the slider, the other element including a pivot defining the first axis. The pivot and the slider are reciprocally coupled so that to the rotation of the movable element around the first axis corresponds the sliding of the slider along the second axis and vice versa. | 02-06-2014 |
| 20140068893 | DOOR DAMPING APPARATUS AND MANUFACTURING METHOD THEREOF - The instant disclosure relates to a door damping apparatus for connecting to a door and an immobile frame. The door damping apparatus includes a shaft seat, a shaft, a cylinder, a piston, a spring unit, a check valve and a throttle valve. The interior of the shaft seat is formed with a fluid passage and a reservoir to store hydraulic fluid. The throttle valve projects into the fluid passage to adjust the flow of the hydraulic fluid, thus allowing the door to be opened smoothly and gently self closes. | 03-13-2014 |
| 20150067982 | Hinge device for doors, shutters or the like - A hinge device for rotatably moving a closing element includes a fixed element anchorable to a stationary support structure coupled to a movable element anchorable to the closing element for rotating around a first longitudinal axis between an open position and a closed position. The device further includes at least one slider movable along a second axis between a compressed and an extended position. One between the movable element and the fixed element includes at least one operating chamber defining the second axis so as to slidably house the slider, the other element including a pivot defining the first axis. The pivot and the slider are reciprocally coupled so that to the rotation of the movable element around the first axis corresponds the sliding of the slider along the second axis and vice versa. | 03-12-2015 |
| 20150143663 | DOOR CLOSING DEVICE - A door closing device having a housing, a lever interface for the attachment of a door closing mechanism ( | 05-28-2015 |
| 20150315833 | DOOR CLOSER - Disclosed is a door closer of which the inside of a housing is made compact and thus is easily made smaller. The disclosed door closer is comprised so that movement of one end of a coil spring, which is relatively close to a link shaft, toward the link shaft inside of the housing is limited, and the other end of the coil spring, which is relatively far from the link shaft, moves toward the link shaft by being pushed by a piston base portion, thereby compressing the coil spring. | 11-05-2015 |
| 20150345202 | DOOR CLOSER - Disclosed is a door closer that can easily adjust the spring force of a return spring. A piston | 12-03-2015 |
| 20150361708 | A SLOW-CLOSING DOOR HINGE - A slow-closing door hinge, includes a first foldout and a second foldout having a shaft sleeve respectively. A fixed rod mounted in the sleeve of the first foldout, and a rotating rod mounted in the sleeve of the second foldout are connected by a connecting rod. The connecting rod and the fixed rod are movably connected, with a hollow groove at the joint. A restoring spring in contact with the fixed rod and fixed to the connecting rod in the hollow groove. The connecting rod is connected with the rotating rod in a coaxial, rotationally actuating manner. The forward and backward rotation of the fixed rod and the rotating rod cooperates with the restoring spring to drive the connecting rod in a reciprocal motion within the shaft sleeve. | 12-17-2015 |
| 20160153224 | Decelerated Hinge for Furniture | 06-02-2016 |
| 20160376824 | DEVICE FOR CLOSING A HINGED MEMBER - A closing device includes an actuator mechanism and a hydraulic damper mechanism. The actuator mechanism includes a pushrod urged by a resilient member towards its extended position. The hydraulic damper mechanism includes a piston, a first rack and pinion gearing for converting the translational motion of the pushrod into a rotational motion of a first pinion, a transmission, which includes a second rack and pinion gearing, between the first pinion and the piston for transmitting and converting the rotational motion of the first pinion into a translational motion of the piston, a one-way valve allowing fluid flow from a first side to a second side of the cylinder cavity when opening the hinged member, and a restricted fluid passage between the first and second sides of the cylinder cavity. The transmission provides together with the pinions of the first and second rack and pinion gearings a reduction gearing between the pushrod and the piston so that the piston reciprocates over a smaller distance than the pushrod. | 12-29-2016 |
| 016053000 | Cam | 4 |
| 20130000074 | Door Closer Comprising Cam Drive - A door closer including a free-swing function, including a door closer housing, an output shaft connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and a hydraulic lock compartment adapted to lock the closer spring. The output shaft is a cam-shaped rolling contour, in particular a cam disc, and the piston assembly includes at least one cam roller abutting on the rolling contour. | 01-03-2013 |
| 20130081227 | DOOR CLOSER - A door closer comprising a drive spindle which is operably connected to a first spring configured to apply a first closing torque to the drive spindle, wherein the drive spindle is also operably connected to a second spring configured to apply a second closing torque to the drive spindle, wherein the connection between the first spring and the drive spindle is independent from the connection between the second spring and the drive spindle, and wherein variation of the first closing torque as a function of drive spindle orientation is different from variation of the second closing torque as a function of drive spindle orientation. | 04-04-2013 |
| 20150322705 | DOOR CLOSER PROVIDED WITH UNIT FOR ADDING DOOR-CLOSING FORCE - Disclosed is a door closer provided with a unit for adding door-closing force inside a housing. The disclosed door closer comprises a force-adding unit, which is included inside the housing, for adding the door-closing force. The force-adding unit comprises a cam which coaxially rotates with a link shaft inside the housing, and a cam pusher which is elastically compressed so as to come into close contact with the outer circumferential surface of the cam. The outer circumferential surface of the cam comprises an arc surface portion which is separated apart from a rotary axis of the cam at an equal distance, a concave surface portion which is separated apart from the rotary axis of the cam at a distance shorter than that to the arc surface portion, and one pair of protruding corner portions for connecting the arc surface portion and the concave surface portion. When the outer circumferential surface of the cam with which the cam pusher comes into close contact is converted from the arc surface portion to the concave surface portion due to the rotation of the cam, the rotational force of the link shaft is increased due to the elastic pressing force of the cam pusher. | 11-12-2015 |
| 20150345203 | HINGE FOR DOORS OF ELECTRICAL HOUSEHOLD APPLIANCES - A hinge for doors of appliances includes a movable arm connected to a door of the appliance, pivoted on a frame to rotate about an axis to make the door movable relative to the frame between closed and open positions. A control shaft extends longitudinally parallel to the axis and is connected to the frame. A sleeve attached to the movable arm extends parallel to the axis. An elastic element is contained inside the sleeve to generate an elastic force for closing the door. A mechanism drives the elastic element to determine the deformation and transmit to the movable arm the closing force. The mechanism includes two cylindrical cam operating units housed inside the sleeve, having first and second cylindrical cams operatively facing one another such that rotation of one about the axis determines translation of the other along the same axis and vice versa, | 12-03-2015 |
| 016054000 | Hinge | 25 |
| 20100024159 | Unburied Hydraulic Door Hinge System - An unburied hydraulic door hinge system for automatically closing a door is directly mounted on a bottom corner of a door. Since the unburied hydraulic hinge system can be installed on the bottom corner of the door, it does not damage the aesthetic appearance of a transparent glass door such as a reinforced glass door, and is very easy to install and repair because it is not buried. From the maintenance point of view, the worker can easily gain access thereto because the split-type mounting plates can be quickly and easily separated. A hydraulic cylinder and a rotating drive mechanism, having a simplified structure and operation, not only improve the durability and lifespan of the hydraulic hinge system but also provide the possibility of mass production as well as production cost saving. Consequently, the hydraulic door hinge system has high economical efficiency. | 02-04-2010 |
| 20100180399 | HINGE WITH A VISCOUS ROTARY DAMPER - An assembly to pivotally connect an external vehicle closure panel to a vehicle body includes a first hinge member that is constructed to be mounted to one of the external vehicle closure panel and the vehicle body, a second hinge member that is constructed to be mounted to the other of the external vehicle closure panel and the vehicle body, a shaft that is constructed to pivotally connect the first hinge member to the second hinge member, and a viscous rotary damper. The damper includes a cover, a rotor, and a viscous material. The shaft connects to the rotor such that rotation of the external vehicle closure panel between a closing position and an opening position causes relative motion between the rotor and the cover of the viscous damper to provide a resistance for controlling the velocity of the external vehicle closure member. | 07-22-2010 |
| 20100199459 | HINGE STRUCTURE FOR SELF-CLOSING DOORS OR THE LIKE, PARTICULARLY GLASS DOORS OR THE LIKE, AND ASSEMBLY INCORPORATING SUCH STRUCTURE - A hinge structure ( | 08-12-2010 |
| 20110005032 | DAMPING MECHANISM FOR CABINET HINGE ASSEMBLY - A hinge assembly is provided to mount a door to a housing, and includes a housing fixation section ( | 01-13-2011 |
| 20110041285 | SEPARATED TYPE HINGE APPARATUS WITH RETURN FUNCTION - The present invention relates to a hinge apparatus for a door, and more particularly, to a separated type hinge apparatus with an automatic return function, in which a restoring device and a damping device are installed separately so that the overall length of the hinge apparatus is reduced, and thus the hinge apparatus may be buried less deeply. A separated type hinge apparatus comprises: an elastic casing; a first elastic member that provides a restoring force; a clutch device which is combined with one end of the first elastic member and controls the elastic force of the first elastic member to remain constant; a shaft penetratively combined through the clutch device in order to transmit a rotational force; and a spring fixing member which is coupled to the other end end of the first elastic member and has a gear groove to control a spring elastic force. | 02-24-2011 |
| 20110138572 | HINGE - A hinge including a first hinge member including a first magnetic element; and a second hinge member including a second magnetic element, wherein the first and second hinge members are hingedly mounted to each other. The first and second hinge members are substantially maintained in a retained position via magnetic force between the first and second magnetic elements. | 06-16-2011 |
| 20110154609 | Dampening Hinge - A dampening hinge for example, for furniture, having a hinge cup with a U-shaped pin, a connecting arm and a hinge base, where one end of the connecting arm is attached to the upper arm of a U-shaped pin and the other end of the connecting arm is attached to the hinge base, the lower arm of the U-shaped pin is attached to a pull rod of a damper mounted on the hinge base by means of a hinge arm module; the hinge arm module includes a swinging arm and a movable swinging arm, where the middle portion of the swinging arm is attached to the hinge base, one end of the swinging arm is hinged with the lower arm of the U-shaped pin and the other end of the swinging arm is hinged with the movable swinging arm, the movable swinging arm is further connected to the pull rod of the dampener and the hinge base, is described. | 06-30-2011 |
| 20110219583 | Hinge for cold rooms, swing gates or the like - A hinge for cold rooms, swing gates or the like includes a stationary support structure and at least a door movable between an open door position and a closed door position. The hinge comprises a box-like hinge body and a pin rotatably coupled to rotate about a first axis between the open door position and the closed door position. Closing means are provided for automatically returning the door, as well as a working fluid acting thereon to hydraulically contrast their action. The closing means comprise a cam element unitary with the pin interacting with a plunger element housed in an operating chamber defined within the box-like hinge body. The box-like hinge body has an elongated shape to define a second axis perpendicular to the first axis. | 09-15-2011 |
| 20110283478 | DAMPENING DEVICE AND SYSTEM - A dampening device for use in a dampening system that operates to dampen and slow the movement of a closing door thereby reducing noise and the risk of injury, the dampening device including a piston and dampening apparatus that are moveable within a cylinder and an anchoring apparatus, the dampening device attached to various positions along a door frame or door panel. | 11-24-2011 |
| 20120124772 | Hinge for cold rooms, swing gates or the like - A hinge for cold rooms, swing gates or the like includes a stationary support structure and at least a door movable between an open door position and a closed door position. The hinge comprises a box-like hinge body and a pin rotatably coupled to rotate about a first axis between the open door position and the closed door position. Closing means are provided for automatically returning the door, as well as a working fluid acting thereon to hydraulically contrast their action. The closing means comprise a cam element unitary with the pin interacting with a plunger element housed in an operating chamber defined within the box-like hinge body. The box-like hinge body has an elongated shape to define a second axis perpendicular to the first axis. | 05-24-2012 |
| 20120216370 | DAMPED DOOR HINGE - A glass door hinge having an internal door stop arrangement comprises:
| 08-30-2012 |
| 20120233811 | DOOR CLOSER - A door closer, in particular a hinge door closer, including a locking function or free-swing function, having a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a hydraulic lock compartment adapted to lock the closer spring, and in particular a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked. | 09-20-2012 |
| 20130160238 | HYDRAULIC HINGE FOR A GLASS DOOR - A hydraulic hinge for a glass door has a fixing plate, a base, a pivot, a buffer module, and a clamping module. The base is combined with the fixing plate and has an oil passage. The oil passage is formed in the base. The pivot is rotatably mounted in the base and has an adjusting space communicating with the oil passage. The oil passage and the adjusting space are filled with oil. The buffer module is mounted in the base and has a sliding tube abutting the pivot. The clamping module is pivotally mounted on the pivot and can clamp a glass door. The glass door can be pivoted relative to the base. With the buffer module and the oil in the oil passage, the glass door can be closed in a smooth movement. | 06-27-2013 |
| 20130227814 | Door closer, particularly for glass doors - A door closer for doors, particularly glass doors, which are supported by a stationary support structure and are movable between an open door position and a closed door position. The door closer comprises a box-shaped body and a pin reciprocally coupled to rotate around a first axis between the open door position and the closed door position. A closing mechanism causes the door to return automatically and a braking mechanism counteracts the action of the closing mechanism. First and second cam elements are unitary with the pin and interposed between a first and second plunger elements acting thereon. | 09-05-2013 |
| 20130312217 | DOOR HINGE FOR A HOUSEHOLD APPLIANCE - A door hinge for a household appliance, the household appliance including a body and a door, the door being movable about a horizontal axis between a substantially vertical closed position and a substantially horizontal opened position. The door hinge includes a housing couplable to the body, a door lever pivotably mountable on the door for movement about a main shaft, a weight compensating spring and a closing spring. The weight compensating spring holds the door substantially in a position of equilibrium when the door is opened and the closing spring applies a self-closing force shortly before the door reaches the closed position and applies a closure maintaining force when the door reaches the closed position. Further included is a dampening device that counteracts one or both of a closing force and an opening force. | 11-28-2013 |
| 20140053369 | Hinge - A hinge includes a hinge body having an operating chamber defining a first longitudinal axis; a pivot rotatably coupled to the hinge body to rotate a closing element around a second longitudinal axis between an open and a closed position; a plunger member having a substantially cylindrical body housed in the operating chamber for the separation thereof into a first and a second variable volume receptacles fluidically connected each other; a working fluid within the operating chamber o hydraulically damp the action of the plunger member; valve means to selectively control the flow of the working fluid between the first and the second receptacle; a shaft for operatively coupling the plunger member and the pivot. The cylindrical body and the shaft are mutually fastened by a fastening element. The shaft includes a first enlarged portion. The cylindrical body is put into fluidic communication the first and second receptacles. | 02-27-2014 |
| 20140075718 | Piston device for the controlled rotatable movement of doors, shutters or like members - A piston device for the controlled rotatable movement of a closing element anchored to a stationary support structure includes a tubular body removably insertable into at least one seat of a hinge device, an actuating head external to the tubular body, a plunger member slidably movable unitarily with the actuating head between a retracted end position and an extended end position, an elastic contrast member acting on the plunger member for the returning thereof from the retracted end position to the extended end position, and a working fluid acting on the plunger member to hydraulically counteract the action thereof. A hinge device, in which a piston device according to the invention is removably insertable. | 03-20-2014 |
| 20140352108 | HYDRAULIC HINGE FOR A GLASS DOOR - A hydraulic hinge for a glass door has a fixing plate, a rotating seat, a pivot and a buffer module. The rotating seat is combined with the fixing plate and has a first oil passage and a second oil passage. The pivot is combined with the fixing plate and the rotating seat. The buffer module is mounted in the rotating seat and has a valve having a circular groove selectively communicating with the second oil passage. A glass door can be pivoted relative to the rotating seat. The valve is structurally simple, thereby simplifying the manufacturing process. With the valve and the second oil passage, the velocity of closing the glass door gradually increases from low speed to high speed. | 12-04-2014 |
| 20150074941 | DOOR HINGE DEVICE - The present invention relates to a door hinge device using hydraulic pressure so that a door can be opened or closed through rotations, and more particularly, to a door hinge device that can be built at a lower cost, facilitates the opening and closing of the door, has improved durability for a longer service life, can control the angle at which the door is opened and fixed, and can prevent the door from being suddenly opened. | 03-19-2015 |
| 20150121653 | SYSTEM FOR CONTROLLABLE ROTATION OF CLOSING ELEMENT - A system for controlled rotatable movement of a closing element anchored to a stationary support structure includes a piston device and a hinge device. The hinge device has a fixed element and a movable element reciprocally coupled to allow mutual rotation, a seat for removably inserting the piston device, and a pivot member with a cam element facing the seat to interact with the piston device. The piston device includes a tubular body, an actuating head external to the tubular body, a plunger member slidable within the tubular body, and an elastic contrast member acting on the plunger member for returning it from a retracted end position to an extended end position. The seat of the hinge body includes a pass-through or blind bore extending along an axis for providing access into the hinge body in a direction substantially parallel to or coinciding with the axis. | 05-07-2015 |
| 20150315832 | SOFT-CLOSING HINGE FOR USE IN FURNITURE - Soft-closing hinge for furniture comprising a movable hinge cup coupled to a door panel, a securing member coupled to a wall panel and a hinge arm configured to couple the hinge cup to the securing member. A damper on the hinge cup acts on the hinge arm at least when the hinge is closed. A spring is disposed in the hinge. One end of the hinge arm is hinged to the hinge cup. A cross section of an end of the spring is non-circular and has a sliding member with a concave chamber disposed thereon. An end of the spring is disposed in the concave chamber. A bottom surface of the sliding member acts on a rotation portion of the hinge arm via elasticity of the spring and moves relative to the rotation portion when the hinge is opened and/or closed to generate an opening or closing force. | 11-05-2015 |
| 20160060932 | HINGE - Disclosed is a hinge including: a first hinge component including: a first external surface for securing to a first structure; and a first magnetic element; and a second hinge component, pivotally coupled to the first hinge component, including: a second external surface for securing to a second structure; and a second magnetic element. A magnetic force between the first and second magnetic elements bias the first and second hinge components toward a retained position. | 03-03-2016 |
| 20160145924 | HINGES SYSTEM - A hinges structure ( | 05-26-2016 |
| 20190145141 | CLOSER APPARATUS | 05-16-2019 |
| 016055000 | Floor pivot | 1 |
| 20130185896 | PATCH FITTING WITH CLOSING FUNCTION - A patch fitting for a glass door includes a mount for being mounted on a floor, a shaft connected with the mount, a clamping seat pivotally connected with the shaft, and a piston unit installed inside the clamping seat. When the glass door is sweeping to open or close, the clamping seat will turn along with the sweeping movement of the glass door about the shaft and the piston unit will be pushed by an eccentric cam of the shaft to press the hydraulic oil contained in the clamping seat so as to provide a damping resistance in response to the sweeping movement of the glass door. The patch fitting can be easily installed on the floor by a simple work. | 07-25-2013 |
| 016056000 | Multiple piston | 4 |
| 20120144623 | AUTOMATIC DOOR CLOSURE UNIT - The present invention relates to an automatic door closer including: a main housing having the shape of a cylinder; a damper housing adapted to divide the interior of the main housing into an upper chamber and a lower chamber and having oil charged thereinto and a fixed vane formed at one side of the inner peripheral surface thereof in such a manner as to be projected toward the center thereof; a cover fixedly coupled to the upper periphery of the main housing; an activating shaft having one end extended to the outside through the cover in such a manner as to be rotatably supported and the other end rotatably supported against the bottom surface of the main housing through the damper housing; a rotary vane formed integrally to the outer periphery of the activating shaft so as to divide the interior of the damper housing into first and second chambers, together with the fixed vane; a return spring adapted to provide a returning force of returning the activating shaft to an initial setting position at the time when the door is closed; and damping means adapted to selectively provide a damping function if the activating shaft and the rotary vane are rotated in a closing direction of the door. | 06-14-2012 |
| 20130086771 | HYDRAULIC DOOR CLOSURE APPARATUS WITH BOOST - A door closure apparatus with boost for latching a door to which the apparatus is attached. The door closure includes two pivotal arms, an outer covering and an elongated housing. In the housing are a main piston with a rack to engage a pinion connected to rotate with one of the pivotal arms, a piston rod, a main spring, a divider wall, an adjustable main spring seat, a supplemental piston and a supplemental spring. The housing is filled with hydraulic fluid and is divided into three chambers with ports and passageways to move fluid during door opening, which stores energy in both the main and the supplemental springs, and door closing, which begins with energy from the main spring and latches with a boost of energy from the supplemental spring. | 04-11-2013 |
| 20140331449 | ADJUSTABLE DOOR CLOSER - An adjustable door closer has a hollow pedestal with a first and a second chamber as well as an actuating groove. An actuating device is set into the actuating groove. A first piston assembly is set into the first chamber and a second piston assembly set into the second chamber. A partition wall is formed between the first and second chambers. Due to a laterally configured flow resistance unit, the holes to be set into the first and second chambers are reduced to three, including a no connecting hole and first and second backflow bypass holes, all of which are connected only to the second chamber from the partition wall. As such, the flow path structure is simplified compared to the five holes required for typical structures. The adjustable door closer could reduce significantly the manufacturing cost and realize better regulating functions with improved applicability and economic benefits. | 11-13-2014 |
| 20140366319 | Door Actuator - A door operator for operating a door includes a housing, an output shaft with a cam disc, an opening piston guided in the housing, which piston, on a first side, bears against the cam disc, an energy accumulator acting upon the opening piston for storing a closing energy for the door, and a damping piston guided in a cylindrically shaped hollow space of a cylinder element, and which piston, on a second side, bears against the cam disc, wherein the cylinder element is firmly connected to the opening piston. | 12-18-2014 |
| 016058000 | Oscillating piston | 4 |
| 20090241287 | DOOR CLOSER - A door closer comprising:
| 10-01-2009 |
| 20110214253 | DOOR CLOSING MECHANISM - A door closing mechanism which comprises a hydraulic rotation damper | 09-08-2011 |
| 20120227212 | DOOR CLOSING MECHANISM - The present invention relates to a mechanism for closing a hinged member which comprises a resilient element for effecting closure of the hinged member and a hydraulic damper | 09-13-2012 |
| 20140345082 | APPLIANCE HINGE COUNTERBALANCE ASSEMBLY WITH SNUBBER - A counterbalance assembly for an appliance hinge has a base including first and second spaced-apart side walls and a transverse face wall. A channel is located between the first and second side walls. First and second notch portions are respectively located in the first and second side walls. A rotating cam is supported on the base and has a camshaft that extends between the side walls and that is adapted for rotation about an axis of rotation, a first end located in the first notch portion and a second end located in the second notch portion. A biasing spring has an inner end engaged with the base and an outer end spaced from the base. A spring rod includes an outer end operatively coupled to the spring and an inner end operatively coupled to the lever. The lever also pivotally connects to the lobe of the cam. A damper assembly is connected to the base and having a piston which is moved between a first position and a second position by the lever contacting the piston. The piston in turn compresses fluid in the damper assembly thus dampening movement of the lid hinge. | 11-27-2014 |
| 016059000 | Side spring chamber | 1 |
| 016060000 | Cam | 1 |
| 20120233812 | Door Closer With Free-Swing Function - A door closer, in particular a hinge door closer, having a free-swing function, including a door closer housing, an output shaft to be connected to a door, a piston assembly connected to the output shaft and guided in the door closer housing, a closer spring, a piston rod adapted to connect the piston assembly to the closer spring, a free-swing assembly which is adapted to enable a translational motion of the piston assembly decoupled from the closer spring when the closer spring is locked, and which is embodied as a sliding-coupling which exclusively transmits compressive forces between the closer spring and the piston assembly, and a hydraulic lock compartment adapted to lock the closer spring. | 09-20-2012 |
| 016062000 | Spring and gear | 2 |
| 20110252598 | DOOR CLOSER WITH SELF-POWERED CONTROL UNIT - A door closer with a self-powered control unit is disclosed. The control unit for the door closer includes a drive gear configured to rotate in response to movement of a door, and a chain arranged to cooperate with the drive gear to produce linear motion in response to rotation of the drive gear. At least one gear creates rotational motion from the linear motion of the chain to turn a generator and generate electricity to power the control unit. In some embodiments, a set of clutch gears is disposed between the chain and the gear creating the rotational motion from the chain so that only one direction of the rotational motion is transferred to the generator in response to movement of the door in any direction. The control unit can additionally include a power management circuit to store energy from the generator. | 10-20-2011 |
| 20160123062 | DOOR CLOSER FOR A LEAF OF A DOOR OR A WINDOW - The invention relates to a retracting device for a leaf of a door or a window, comprising a housing, a piston which is arranged in a receiving area of the housing and which is urged by a spring, and a shaft which is mounted in the housing and which interacts with the piston, an actuating arm for the leaf being arranged on the shaft in a non-rotatable manner. At least one first driving element is arranged on the shaft, the head surface of said driving element forming a freewheel device with a freewheel region, wherein an arrangement of the piston or a tooth of a toothing of the piston slides on the freewheeling region so as to decouple the shaft from the piston. | 05-05-2016 |
