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| Number | Title | Issue Date |
| 7828127 | Rotary damper A rotary damper allows for fluid bypass through the interior of the hydraulic chamber, as opposed to dampers where fluid bypass occurs only along the walls of the hydraulic chamber. Additionally, the damper accommodates bi-directional damping, by providing a univers... | 11/09/2010 |
| 7416063 | One-way damper and electronic devices using the one-way damper A one-way damper includes a cylindrical housing, a viscous fluid contained within the housing, a rotor rotatably disposed in the housing, and a valve body. The rotor has a center part for forming a rotational center, and a control wall extending radially outwardly f... | 08/26/2008 |
| 7360736 | Viscous braking device equipped with monodirectional mechanism, particularly for mosquito curtains A monodirectional braking mechanism for use with a device for extending and retracting a sheet of material on a roller, the braking mechanism comprising one or more than one housing, one or more than one rotor within the housing, a brake controller connected to the ... | 04/22/2008 |
| 7243398 | Pivot-action damper A pivot-action damper which for example dampens the impact effect of the closing movement of doors, furniture doors or flaps displays excellent braking force or damping force, even over small angular regions as a result of an outer cylindrical body which encompasses... | 07/17/2007 |
| 7207425 | Rotary damper A rotary damper includes a housing; a viscous fluid filled in the housing; a rotor disposed inside the housing and having a shaft part partially protruding from the housing and a resistance part provided on the shaft part for moving in the viscous fluid inside the h... | 04/24/2007 |
| 7204353 | Rotary damper, auto part having rotary damper and rotational motion assistant mechanism A rotary damper is provided which can include a valve (6) which automatically varies a flow rate of a viscous fluid passing through fluid passages (5a, 5b) in correspondence with variation in load. The valve (6) comprises a leaf spring. T... | 04/17/2007 |
| 7051618 | Ultrasonic welded hinge damper A damper includes a housing, a cover, a rotor and a valve relatively rotatable with respect to the rotor. When rotated in one direction, a space between the valve and the rotor is opened to increase damper fluid flow and reduce damper resistance. When rotated in an ... | 05/30/2006 |
| 7048098 | Toroidal rotary damper apparatus A toroidal rotary damper apparatus includes a housing having a toroidal inner housing surface and a piston moveable in the housing having a curved outer peripheral piston surface in engagement with the inner housing surface. A fluid barrier is attached to the housin... | 05/23/2006 |
| 6907968 | Automotive suspension with a rotational shock-absorber A motor-vehicle suspension having oscillating arms, in which one of the arms is formed by the casing of a rotational shock-absorber, wherein the oscillating piston of the shock-absorber is connected to the structure of the motor vehicle. Preferably, the casing of th... | 06/21/2005 |
| 6796571 | Hydraulic steering damper for motor vehicles A hydraulic steering damper (9) is designed to be fitted inside a steering sleeve (3) between the steering sleeve (3) itself and a steering pin (2) that is coaxial with the sleeve (3) and having an axis of rotation (A). The damper ... | 09/28/2004 |
| 6769520 | Damper and method of fabricating the damper A damper including a shaft member 2 having wings 4a, 4b which are formed on the outer periphery of a shaft 3, a cylindrical casing 1 relative-rotatably incorporating the shaft member, and oil chambers A to D which are... | 08/03/2004 |
| 6687921 | Toilet seat damper Damping apparatus for a toilet seat and toilet cover generally includes a hinged frame and a pair of mirror image dampers disposed in the frame for coupling with the toilet seat and toilet cover and providing independent damped closure thereof. Each dampe... | 02/10/2004 |
| 6644214 | Constant contact side bearing A side bearing provides constant contact between a truck bolster and a railway car body. The side bearing includes a base member having a central portion mounted on top of the bolster. The base member includes end portions which extend downwardly and outw... | 11/11/2003 |
| 6536565 | Rotary damper A rotary damper for use in motor vehicle suspensions comprising a rotor disposed within damping fluid in a fluid chamber of a case to form fluid volumes, with valves for flow control and an accumulator for fluid fill variation and thermal expansion mounte... | 03/25/2003 |
| 6523185 | Self-lowering toilet seat A device is described for automatically lowering a toilet seat. The device includes a fluid chamber with a sidewall; a replaceable insert with an arcuate inner face and parallel seat-raised and seat-lowered edges against the sidewall. A vane with a seat-a... | 02/25/2003 |
| 6494302 | Method, arrangement and use for and of, respectively, a vane damper A vane damper, and a method for making the vane damper is disclosed. A casing including a space for at least one rotable vane divides the space into two parts. The spaces are variable because of the vane which rotates within the space. Further, a number o... | 12/17/2002 |
| 6450305 | Hydrodynamic retarder with thermally compensated balancing ring The invention relates to hydrodynamic machine, especially a hydrodynamic retarder, comprising a housing, components of the hydrodynamic machine being disposed within the housing, and a balancing element. The housing being constructed of a housing material... | 09/17/2002 |
| 6341677 | Vehicle rotary suspension damper of composite construction A rotary damper for a vehicle trailing arm suspension mechanism includes a housing defined by a body molded of a reinforced plastic and defining a fluid filled cavity in which a multi-bladed rotor is disposed to form plural fluid filled damper chambers. T... | 01/29/2002 |
| 6220407 | Method, arrangement and use for and of, respectively, a vane damper A method of producing a vane damper comprising a body including a space for at least one rotatable vane that divides the space into two part spaces that are located on either side of the vane. The spaces are variable because of the rotatability of the van... | 04/24/2001 |
| 6173822 | Rotary damper Rotary damper, in particular for an actuating member in motor vehicles, comprising a housing having a cylindrical damper chamber, a liquid viscous medium within the chamber, a rotatably supported shaft within the chamber having at least one substantially ... | 01/16/2001 |
| 6121526 | Rotary damper A rotary damper has a shaft and a torque control mechanism which are accommodated in a chamber filled with a viscous fluid. The chamber is divided into a first compartment and a second compartment. The torque control mechanism comprises an auxiliary chamb... | 09/19/2000 |
| 6098765 | Rotary damper A rotary damper includes: a pressure generating mechanism portion A for relatively pivoting swingable vanes 4a and 4b with respect to stationary vanes 2a and 2b located on a casing 1 so as to vary reverse proportionally a pressure of a fluid filled within... | 08/08/2000 |
| 5974705 | Snubber for excavator bucket door A Snubber is used to damp the swing of the door on an excavator bucket to prevent the door form being damaged by repeatedly slamming shut. The snubber has housing which mounts to an excavator bucket and a shaft pivotally mounted in the housing and connect... | 11/02/1999 |
| 5826687 | Anti-roll vehicular suspension system and a hydraulic rotary actuator system in an anti-roll vehicular suspension system System for the control of the roll of a motor vehicle, the system including a number of valves and lines for the feed and control of an actuator. The actuator is coupled to a stabilizer by means of connections, whereby the lines and connections have a one... | 10/27/1998 |
| 5735067 | Snubber for excavator bucket door A Snubber is used to damp the swing of the door on an excavator bucket to prevent the door form being damaged by repeatedly slamming shut. The snubber has housing which mounts to an excavator bucket and a shaft pivotally mounted in the housing and connect... | 04/07/1998 |
| 5697122 | Rotary damper and closure device with such rotary damper A rotary damper has a movable valve supported on a support projection radially outwardly projecting from a shaft of a rotating member which is rotatably disposed in a chamber filled with a viscous fluid in a casing. Depending on the direction in which the... | 12/16/1997 |
| 5664286 | Hinge mechanism for supporting the seat or the seat lid of a toilet bowl A hinge mechanism has a damping mechanism and is capable of removing or reducing to the least extent the damping action of the damping mechanism when opening the seat or the seat lid of a toilet bowl, of securely holding the seat or the seat lid at the op... | 09/09/1997 |
| 5570640 | Yaw damper for railway cars A yaw damper for railway cars comprises a pair of rotary hydraulic units connected to the laterally extending truck bolster of a railway truck assembly on opposite sides of its central pivot bearing member, a pair of connecting plates secured to the corre... | 11/05/1996 |
| 5553834 | Lateral and axial vibration isolators utilizing leaf springs A vibration isolator for lateral and axial isolation, as the case may be, of vibrations between inner and outer elements, such elements having a space therebetween with leaf spring packs and hydraulic fluid therein and hydraulic fluid passages for moving ... | 09/10/1996 |
| 5390770 | Rotation deceleration device A rotation deceleration device used for a sanitary cleaning device which includes a toilet seat and a toilet cover and is attached to a toilet bowl, thereby injecting warm water in the toilet bowl. The rotation deceleration device includes a cylinder havi... | 02/21/1995 |
| 5305858 | Rotary shock absorber having vanes with radial flow clearance A rotary shock absorber suitable for use in a suspension system of a vehicle. The shock absorber is provided with a housing and a rotary shaft supported by the housing for relative rotation thereto. A pressure chamber is formed in the housing and a rotor ... | 04/26/1994 |
| 5153946 | Apparatus and method for automatically closing a toilet bowl lid and seat For use with a toilet having a toilet bowl and a lid mounted to pivot between a closed position covering the bowl and an open position pivoted approximately 90° from the bowl, an apparatus for automatically closing the lid includes a control mechanism en... | 10/13/1992 |
| 5090521 | One-way damper A one-way damper comprising a cylindrical outer frame 10 with one end closed within which is provided a cylindrical inner frame 20 in a state rotatable relative thereto, packing material G packed between said inner and outer frames, and when a relative ro... | 02/25/1992 |
| 4768630 | Rotary damper A rotary damper comprises a stator and a rotor which are co-axial, circular and cylindrical, two extreme faces substantialy transversal to the axis of the stator and rotor and disposed respectively on either side of the stator and rotor, a main chamber fi... | 09/06/1988 |
| 4736962 | Steering stabilizer for vehicles A steering stabilizer for handlebar controlled vehicles. The stabilizer utilizes a steering column housing having a cylindrical chamber therein. The steering column passes through the axial center of the chamber and hydraulic fluid is held within the cham... | 04/12/1988 |
| 4723639 | Rotary hydraulic snubber with a bypass valve A hydraulic snubber suitable for a skidding grapple or the like in which a twisted figure eight housing is provided to oppose free swinging in two mutually perpendicular horizontal directions, each portion of the figure eight having a cylinder housing wit... | 02/09/1988 |
| 4674608 | Hydraulic damper A hydraulic damper has a rotor (38) with vanes (36) sweeping through respective working chambers (56, 54) defined by a stator ring (12) with integral stator abutments (50). An orifice (64) is formed in each vane to permit flow past each vane which has red... | 06/23/1987 |
| 4666386 | Rotary pump A rotary pump has a housing 1 with a driven rotor 7 installed in the housing 1. Vanes 12 are connected around the periphery of the rotor 7. Helical springs 14 are supported against rotor 7, which, acting on an inner surface of vanes 12, press the free end... | 05/19/1987 |
| 4609081 | Hydraulic snubber A hydraulic snubber suitable for a skidding grapple or the like in which a twisted figure eight housing is provided to oppose free swinging in two mutually perpendicular horizontal directions, each portion of the figure eight body having a cylinder housin... | 09/02/1986 |
| 4331223 | Electrohydraulic rotary brake An electrohydraulic rotary brake comprises an inner core, at least one energizing winding, a cylindrical amagnetic insert and an annular part outside the core and the insert. A cylindrical bore is excentric with respect to the cylindrical peripheral surfa... | 05/25/1982 |
