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Diaphragm or bellows

Subclass of:

267 - Spring devices

267113000 - FLUID

267118000 - Expansible-contractible chamber device

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
267122000 Diaphragm or bellows 26
20080296816Vibration-Isolating Support Device - An antivibration mounting apparatus (12-04-2008
20090001638BELLOWS STRUCTURE - A bellows structure (01-01-2009
20090102105Fluid filled vibration damping device and electric actuator for use in the same - A fluid filled vibration damping device including: a fluid passage interconnecting a pressure receiving chamber partially defined by a rubber elastic body connecting a first and second mounting members, and an equilibrium chamber partially defined by a flexible film; a movable valve body provided for switching the fluid passage between a communicating state and a blocked state through reciprocating operation; an electric motor employed for actuating the movable valve body; an actuating force converter mechanism provided on an actuating force transmission path from the electric motor to the movable valve body. A rotational actuating force of the electric motor is transmitted as reciprocating actuating force to the movable valve body by the actuating force converter mechanism.04-23-2009
20090243169SYSTEMS FOR DAMPING VIBRATIONS FROM A PAYLOAD - Systems are provided for damping vibrations from a payload. In an embodiment, and by way of example only, the system includes an isolation strut and a gas line. The isolation strut includes a bellows and a piston. The bellows has a first end and a second end, the first end being enclosed, and the second end attached to the piston to define a chamber. The piston includes a damping annulus therethrough having a gas inlet and a gas outlet. The gas inlet provides flow communication to the chamber of the bellows. The gas line is coupled to the isolation strut and is in fluid communication with the gas outlet thereof. The system is hermetically sealed to contain a gas therein.10-01-2009
20100001446Air Spring Device - Disclosed is an air spring device having a free-standing air spring bellows and an outer guide which is fastened to the air spring bellows by means of an inner clamping ring, wherein the outer diameter of the inner clamping ring is greater than the outer diameter of the air spring bellows in the unpressurized state, and the inner clamping ring generates a radially outwardly pointing encircling bulge in the unpressurized air spring bellows.01-07-2010
20100237549Air Spring for Vehicle - An air spring has at least one working space which is filled with compressed air and which is delimited at least partially by a rolling bellows which is fastened at its ends to connecting parts. At least one of its ends, the air spring has a wall which is thicker in relation to the rest of the rolling bellows body, wherein the rolling bellows has, at least one of its thickened ends, a continuously vulcanized layer cover which is folded back to such a length that, after the assembly of the air spring, at least one region of the rolling bellows which is highly loaded by chassis forces falls into the region of the layer cover.09-23-2010
20110169203AIR SPRING - The opposite side of a connecting intermediate section 07-14-2011
20110187033BELLOWS-TYPE SHOCK-ABSORBING DEVICE - The present invention discloses a bellows-type shock-absorbing device, which comprises an outer pipe, an inner pipe, and a chamber enclosed by the inner and outer pipes. The outer pipe has a bellows structure. At least one orifice is disposed on the surface of the outer pipe for injecting fluids into the chamber. By means of injecting different ratios of liquid and gas into the chamber, it is able to provide the bellows-type shock-absorbing device with an adjustable shock-absorbing performance.08-04-2011
20110210486RUBBER ARTICLES SUBJECTED TO REPEATED DEFORMATION AND COMPOSITIONS FOR MAKING THE SAME - An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of an elastomer and syndiotactic 1,2-polybutadiene.09-01-2011
20120200019BELLOWS-TYPE SHOCK-ABSORBING DEVICE - The present invention discloses a bellows-type shock-absorbing device, which comprises an outer pipe, an inner pipe, and a chamber enclosed by the inner and outer pipes. The outer pipe has a bellows structure. At least one orifice is disposed on the surface of the outer pipe for injecting fluids into the chamber. By means of injecting different ratios of liquid and gas into the chamber, it is able to provide the bellows-type shock-absorbing device with an adjustable shock-absorbing performance.08-09-2012
20120200020END MEMBER, GAS SPRING ASSEMBLY AND METHOD - An end member for a gas spring assembly includes an end member wall with a first wall portion at least partially defining a substantially-flat surface area in a first plane, a second wall portion at least partially defining an outer peripheral extent of the end member wall and a third wall portion at least partially defining a substantially-flat surface area in a second plane. A valley can extend lengthwise along the third wall portion. A gas spring assembly and method of assembly are also included.08-09-2012
20120205844FLEXIBLE SLEEVE, GAS SPRING ASSEMBLY AND METHOD - A flexible sleeve dimensioned for securement to an associated end member for an associated gas spring assembly includes a flexible wall. An annular reinforcement member is embedded within the flexible wall. A retainment element that includes an element surface is disposed along the flexible wall such that at least the element surface is outwardly exposed. At least one gas spring piston, at least one gas spring assembly and at least one method are also included.08-16-2012
20120217688GAS SPRING PISTON WITH PARTIAL BELLOWS SUPPORT FEATURE AND GAS SPRING ASSEMBLY INCLUDING SAME - A piston for use in forming a gas spring assembly includes a longitudinally extending axis, a first end wall extending approximately transverse to the axis, and an outer side wall extending longitudinally from adjacent the first end wall. The outer side wall includes a first side wall portion that forms a fully circumferential outer surface and a second side wall portion that forms a partially circumferential outer surface that extends longitudinally beyond the fully circumferential outer surface. A gas spring assembly including such a piston is also included.08-30-2012
20120248667AIR SPRING MODULAR PISTON - A modular piston assembly is associated with an air spring assembly that has a bellows roiling over a surface of the piston assembly. The modular piston assembly includes a first piston portion adapted to fasten to an associated air spring bellows. A second piston portion separate from the first portion, is adapted to fasten to an associated mounting component. Interlocking members are provided to secure the first and second piston portions together, and/or any desired intermediate piston portions. Discrete air reservoirs may also be included in the modular piston assembly to increase the volume of the air spring.10-04-2012
20120313304END MEMBER ASSEMBLY, GAS SPRING ASSEMBLY AND METHOD - A piston assembly includes an outer shell, an end plate and an attachment column. A first flowed-material joint is disposed between and fixedly attaches the end plate and the outer shell to one another such that a fluid-tight seal is formed therebetween. A second flowed-material joint is disposed between and fixedly attaches the attachment column and the end plate to one another such that a fluid-tight seal is formed therebetween. A gas spring assembly and method that include the piston assembly are also included.12-13-2012
20130001840ELASTOMER PRODUCT, IN PARTICULAR AN AIR SPRING HAVING A BELLOWS, HAVING AN ELECTRICAL COMPONENT - An elastomer product having an elastomer component, in particular an air spring having a bellows, wherein an electrical component is embedded in the elastomer component of the elastomer product, and the elastomer component including at least one electrically conductive path. The electrical component is located on a carrier material. The electrically conductive path is designed to be elastically flexible and connected to the carrier material and the carrier material is connected to the surrounding elastomer of the elastomer component in a firmly bonded manner.01-03-2013
20130093132GAS SPRING ASSEMBLY AND METHOD OF ASSEMBLING SAME - A gas spring assembly includes an end member, a piston assembly and a flexible sleeve secured therebetween. An end closure secures an end of the flexible sleeve to the piston assembly. A connector fitting connects the end closure to a support post of the piston assembly. The connector fitting includes a fitting passage and a first annular groove. A jounce bumper assembly is supported on the connector fitting. The jounce bumper assembly includes a bumper body and a bumper mount. The bumper mount includes securement pin having a second annular groove. A retaining member is received within the first and second annular grooves such that the jounce bumper assembly can freely rotate relative to the connector fitting while substantially restricting axial displacement of the jounce bumper assembly relative to the piston assembly during such rotation.04-18-2013
20130147100Air Spring - An air spring has a rolling-lobe flexible member terminating in a conically-shaped bead defining a conically-shaped opening of the flexible member. A-roll-off piston has an end facing toward the flexible member and has a conical seat formed thereon for receiving the bead of the flexible member to conjointly define therewith an airtight force fit connection. The roll-off piston further has a support shoulder beneath the conical seat whereon the flexible member is supported when deflected and the roll-off piston has an annular groove formed therein between the end thereof and the conical seat. An annular locking member is seatable in the annular groove after assembly of the flexible member on the conical seat so as to hinder the bead from slipping off of the conical seat.06-13-2013
20140042679ELASTICITY-ADJUSTABLE AIR PRESSURE SPRING - An elasticity-adjustable air pressure spring designed by the invention solves the technical problems of complex structure and top-to-bottom air impenetrability in the current gas springs. The elasticity-adjustable air pressure spring comprises a spring body, and is characterized in that the spring body is formed by at least one hollow cavity column of a double-layer sidewall structure, a closed cavity containing pressure air is formed between the double layers of the sidewall, the cavity column is corrugated, and at least one vent hole communicated with the cavity is arranged on the sidewall of the cavity column. By using the corrugated structure like an accordion box and filling the pressure air, the hardness of the elasticity-adjustable air pressure spring is adjusted, the elasticity-adjustable air pressure spring is particularly good in transverse and longitudinal ventilation, a mattress comprising the elasticity-adjustable air pressure spring is easy to remove moisture so that the influence on human body health is eliminated; the elasticity-adjustable air pressure spring is convenient in hardness adjustment and wide in one-way deformation range, meets various demands and can be adjusted in real time to enhance the comfortable level; in addition, the elasticity-adjustable air pressure spring is convenient for coiled package to save the transportation cost, and can be unfolded by inflation when used by a user.02-13-2014
20140217656ELASTOMERIC ARTICLES WITH IMPROVED PROPERTIES - An air spring having an airsleeve, wherein at least one layer of said airsleeve includes the vulcanization product of a composition that includes an unsaturated chlorinated polymer; and a saturated chlorinated polymer.08-07-2014
20140252702COMPOSITE BEAD PLATE AND AN AIR SPRING USING THE SAME - The present invention discloses an air spring comprising a piston, a top plate, a clamp ring, a snap ring, and a flexible member which is affixed to the piston and the top plate, wherein the piston, the top plate and the flexible member define a pressurizable chamber, wherein the snap ring is affixed to the clamp ring, wherein the clamp ring affixes an upper portion of the flexible member to the top plate, wherein the clamp ring affixes the snap ring to the top plate, and wherein the top plate is affixed between the snap ring and the flexible member.09-11-2014
20140252703ROLL-OFF PISTON FOR AN AIR SPRING ROLLING-LOBE FLEXIBLE MEMBER - A roll-off piston made of plastic is for an air spring rolling-lobe flexible member (09-11-2014
20140300038AIR SPRING - An air spring includes an upper surface plate, a lower surface plate, and a diaphragm connecting the upper surface plate and the lower surface plate. The diaphragm has an annular shape having an opening on an inner circumferential side. In the diaphragm, an upper surface plate contact portion, which is a region defining the opening and being in contact with the upper surface plate, includes a deformed portion elastically deformed to protrude toward the lower surface plate side by contact with a support plate. The deformed portion is in contact with a sliding member located on the lower surface plate side when viewed from the deformed portion.10-09-2014
20150328969INVERTED TYPE LIQUID SEALED MOUNT - Annular liquid chamber resonance in an inverted type liquid sealed mount is controlled without using flow resistance. In an engine mount including a secondary liquid chamber located in an upper position, a primary liquid chamber located in a lower position, a main body section of an insulator projecting upwardly in substantially a chevron shape, and an annular liquid chamber formed around the main body section, a control projection is provided on an outside wall of the main body section to project upwardly and configured to produce elastic body resonance in the vicinity of a resonance frequency of annular liquid chamber resonance. With this construction, the annular liquid chamber resonance is controllable by the elastic body resonance of the control projection, and the control projection is increased in size so as to endure flow resistance whereby to improve durability.11-19-2015
20160153514LIQUID SEALED MOUNT06-02-2016
267123000 For valve or throttle control 1
20090200718Spring Shock Absorber for a Motor Vehicle - In a spring shock absorber for a motor vehicle, with a first body part and a second body part, the first body part forms a first changeable volume with the second body part by way of a first rolling bellows, and the second body part forms a second changeable volume with a roll-off piston connected to the first body part by way of a second rolling bellows. The two rolling bellows are arranged in such a way that they are guided in the radial direction during a rolling motion by lateral contours of the two body parts and the roll-off piston. The two volumes are connected to one another via a throttle element and form a hermetically closed two-volume system with respect to a deflection of the spring shock absorber. The roll-off piston is guided through the second body part in a longitudinally displaceable manner by means of a sealing element.08-13-2009
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