U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5100138

Motorized Mobile Boxing Robot

A simulation environment for the sport of boxing utilizing a robotic machine interface system which carries a person

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 188/288 - Having varying area of chamber passageway for thrust member


Subclass of Class 188 - Brakes
Definition: Device wherein a thrust member moves within a variable-volume
No. of patents: 52
Last issue date: 05/13/2008


1    
NumberTitleIssue Date
7370851Damping system of a glove box
A damping system of a glove box using a damper and a wire. The damper is attached to the glove box. An end of the wire is fixed to a fastener on a lower panel. Thereby, when a field problem occurs, the damper is mounted and demounted with ease. ...
05/13/2008
7367086String type air damper
A string type air damper includes a cylinder formed in a tubular shape, defining a guide hole at one end portion thereof, a piston, which moves in the cylinder, a helical spring for biasing the piston toward the other end portion of the cylinder, and a string member...
05/06/2008
7243398Pivot-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
7240941Vehicle storage assembly with adjustable door
A vehicle storage assembly includes a storage compartment having an opening to permit access to the compartment. A door adjacent the opening is moveable between a closed position that covers the opening and an open position that permits access to the compartment thr...
07/10/2007
7204353Rotary 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
7175008High-resistance decelerating device, particularly for insertion between two members in relative motion
A decelerating device includes a casing defining internally a chamber filled with a viscous fluid, e.g. silicone oil; and a movable member fitted in fluidtight manner to the casing, so as to be housed at least partly inside the chamber and immersed in the viscous fl...
02/13/2007
7172057Vibration damper with amplitude-dependent damping force
Vibration damper comprising a piston rod, which is guided with freedom of axial movement in a damping medium-filled cylinder and which carries a piston, which divides the cylinder into two working spaces. At least one of the two working spaces has a flow connection ...
02/06/2007
7163248Automotive console with adjustable armrest
A center console for an automobile includes an armrest that is selectively adjustable by vehicle occupants to and between a first position wherein the armrest is in a substantially horizontal orientation, and a second position wherein the armrest extends angularly a...
01/16/2007
7111711Vibration damper with stroke-dependent damping force
Vibration damper, containing a damping medium-filled cylinder, in which a piston rod with a piston is installed with freedom of axial movement, where, as a function of the stroke of the piston, a bypass connects a working space on the piston rod side to a working sp...
09/26/2006
7104369Vibration damper with stroke-dependent damping force
A piston rod with a piston is installed with freedom of axial movement in a damping medium-filled cylinder, where, as a function of the stroke position of the piston, a bypass connects the two working spaces separated from each other by the piston. The piston has at...
09/12/2006
7055319Piston and cylinder assembly with volume compensating system
A piston and cylinder assembly having a cylinder with a piston and a connected piston rod. The piston defines opposed chambers wherein a compensating device is disposed in at least one of the chambers. The compensating device includes a capsule of an elastic materia...
06/06/2006
7000907Spring system for bicycles
The present invention relates to a spring system for bicycles having a first load-applying segment and a second load-applying segment as well as at least one positive spring and at least one negative spring arranged to be effectively operable between the first and t...
02/21/2006
6978711Combination of a chamber and a piston, a pump, a motor, a shock absorber and a transducer incorporating the combination
A combination of a piston and a chamber, wherein the chamber defines an elongate chamber having a longitudinal axis, the chamber having, at a first longitudinal position thereof, a first cross-sectional area thereof and, at a second longitudinal position thereof, a ...
12/27/2005
6959797Piston-cylinder assembly with braking device
In a piston-cylinder assembly comprising a cylinder in which a piston rod is installed with freedom of axial movement and which is filled with a blocking medium, a braking device becomes active when the piston-cylinder assembly moves faster than a defined speed and ...
11/01/2005
6913126Impact damper
An impact damper for deceleration of a vehicle impacting on all obstacle by hydraulic damping forces and gas spring forces includes at least inner and outer pipes telescopically displaceable one inside the other and defining an annular space therebetween with a base...
07/05/2005
6739609Front fork
The production of sharp shocks is prevented by increasing resilient gas characteristics in response to the compression stroke acting on a front fork. The front fork comprises a tube 1 connected to the vehicle body and a tube 2 connected to the vehicle ...
05/25/2004
6568664Front fork for motorcycle
A flow restriction part (10) which provides a resistance to high speed oil is provided in a reservoir (R), and an air chamber (A2) which contracts according to an oil pressure is disposed underneath this flow restriction part (10). Providing su...
05/27/2003
6446771Shock absorber
A shock absorber is made with a bleed function and preferably a non-return valve function associated with the bleed function. The shock absorber has a cylinder (3) and, working in the latter in working medium and arranged on a piston rod (4), a piston arr...
09/10/2002
6442796Air damper
An air damper consists of a tubular cylinder with opposite ends, a piston movable in the cylinder, a first coil spring for resiliently biasing the piston in the direction of one end of the cylinder, a string for transferring dampening effect produced by a...
09/03/2002
6269919Plastic strand damper
The damper includes a cylindrical housing with a cylindrical passageway formed therewithin. A piston traverses the cylindrical passageway. A strand element is integrally molded with the piston on a first end and integrally molded with an attachment elemen...
08/07/2001
6189662Adjustable damper
The damper includes a cylindrical housing with a cylindrical passageway formed therewithin. A piston traverses the cylindrical passageway. A monofilament element is integral with the piston on a first end and includes a plurality of molded annular rings o...
02/20/2001
5971117Piston-cylinder aggregate with displacement-dependent dampening force field
A piston-cylinder aggregate comprising a cylinder in which an axially movable piston rod is arranged is provided. The piston rod has two pistons, which are separated from each other and which produce a damping force of a variable magnitude depending on th...
10/26/1999
5884734Air damper
An air damper includes: a piston adapted to reciprocate in a cylinder; an annular recessed portion formed along an outer periphery of the piston; a sealing member fitted in the recessed portion in a slidable manner, adapted to slidingly contact an inner p...
03/23/1999
5799759Hydraulic strut for a motor vehicle
A positioning element to position two objects which are movable in relation to one another includes a cylinder in which there is an axially movable piston rod with a piston. The piston sealingly divides the cylinder into two working chambers by a piston r...
09/01/1998
5769190Continuous controlled restriction valve for a shock absorber
A shock absorber utilizes an array of restrictive rebound fluid flow passages radially formed in a piston assembly. The flow passages are defined by a relatively narrow entrance and a relatively wide exit. A contoured wall form one wall of the passage. Th...
06/23/1998
5702091Gas spring
A gas spring for the hatchback or other closure member of a motor vehicle body automatically stops at an intermediate position between the fully closed and fully opened positions. A piston carrying a piston rod separates the interior of a cylindrical body...
12/30/1997
5577579Method of manufacturing a suspension damper
A suspension damper and a method of manufacturing a suspension damper so that a common cylinder end assembly is used with dampers having cylinder tubes of varying diameters to accommodate piston assemblies having various desirable performance characterist...
11/26/1996
5409087Hydraulic dashpot for motor vehicles
A hydraulic dashpot for motor vehicles. It has a cylinder that accommodates a fluid. A shock-absorbing piston travels back and forth in the cylinder and divides it into two displacement chambers. The piston is connected to a rod that extends through a cen...
04/25/1995
5325943Variable orifice oil/gass damper for aircraft landing gear
A variable orifice damper includes a sealed cylinder, a piston rod mounted for sliding movement along the axis of the cylinder carrying a piston head and a tail rod, the piston rod and tail rod extending from the interior of the cylinder outward beyond a ...
07/05/1994
5217212Shock absorber
A shock absorber having a tubular body member provided with an accumulator chamber in one end thereof, and an axially aligned piston chamber in the other end thereof. A combination piston and piston rod member is telescopically mounted in the piston chamb...
06/08/1993
5095581Variable position door holder and stop
A mechanism is provided for maintaining an open door in a selected fixed position includes a hydraulic cylinder having first and second ends. One end of a shaft axially disposed in the cylinder, passes through a hydraulic seal at one end of the cylinder. ...
03/17/1992
4964625Hydraulic damper with oil lock mechanism
A hydraulic damper has an oil lock mechanism for preventing bottoming when the hydraulic damper is fully compressed. The hydraulic damper also includes an outer tube, an inner tube, a cylinder movable with the inner tube, a piston rod movable with the out...
10/23/1990
4901828Method and apparatus for controlling displacement of a piston in a shock absorber
A shock absorber for damping the movement of the body of an automobile is provided. The shock absorber comprises a pressure cylinder forming a working chamber operable to store damping fluid. The shock absorber further comprises a reciprocating piston dis...
02/20/1990
4846317Strut with controlled variable damping rate
An apparatus for damping relative movement of parts. The apparatus includes a cylinder defining a fluid chamber. A piston is located in the fluid chamber and divides the fluid chamber into first and second fluid chamber portions. The piston is connected t...
07/11/1989
4821851Damper with optimized adjustable valving for vehicle ride control
Suspension damper with double drum variable valving within the confines of the piston which strokes within the damper that is rotatable to predetermined stations in one revolution to provide a wide range of jounce and rebound damping characteristics and r...
04/18/1989
4819770Hydraulic control device
A hydraulic device is provided for controlling the rate of relative movement of first and second members between predetermined first and second stations. The device includes a housing connected to the first member and provided with a first cavity for hydr...
04/11/1989
4797971Adjusting device for a vehicle door
A control mechanism for a door of a motor vehicle is described that is actuated via an inside and outside handle and comprises a piston-cylinder unit arranged between a door post and the vehicle door. It has a piston provided with passage openings for a p...
01/17/1989
4762208Vibration damper for a towed body
A vibration damper is provided for a towed body usable more particularly as head section of an underwater antenna towed by a boat and containing detection and measuring instruments. The damper of the invention comprises at least one piece with high loss a...
08/09/1988
4566677Vibration damper and in particular frequency adapter for a helicopter blade
The device comprises two rigid elements 1a, 1b, 2 and an elastomer mass 10 interposed therebetween so as to be deformed when the elements move relative to each other in a longitudinal direction. The device includes a closed space with a restriction elemen...
01/28/1986
4457498Force balanced die cylinders
A new breed of die cylinders operating at 1000-5000 psig. working fluid pressures and adaptable for use individually or by manifolding with punch presses to cushion dies can be operated with maximum rated pressure force against a force which a ram develop...
07/03/1984
1    
 
Sign InRegister
Username  
Password   
forgot password?