Class / Patent application number | Description | Number of patent applications / Date published |
092089000 | COLLAPSIBLE CHAMBER WALL PORTION (E.G., HINGED OR FLEXIBLE WALL) | 37 |
092090000 | Wall portion formed of flexible material | 37 |
20110067563 | EXTENSILE FLUIDIC MUSCLE ACTUATOR - An Extensile Fluidic Muscle Actuator (FMA) that changes the normal direction of force and motion, achieving compressive force generation and extensile motion output with just a small increase in friction, weight, and cost is disclosed. The motion conversion is accomplished by a pushrod that is attached to the inside end of one of the actuator's end fittings, and extends through the actuator body and slidably out through the other end fitting. The other end fitting is held stationary by a seal housing that contains a sealing element to retain internal fluid pressure as the actuator moves. A linear bearing may also be installed to keep the rod aligned and centered properly in the seal. Upon pressurization of the actuator, the flexible body of the actuator will expand radially, causing relative contractile motion between the two end fittings. However, as the two end fittings are drawn towards each other, the pushrod is extended. | 03-24-2011 |
20110079140 | ENERGY STORAGE SYSTEM INCLUDING AN EXPANDABLE ACCUMULATOR AND RESERVOIR ASSEMBLY - An expandable accumulator and reservoir assembly includes a reservoir defining an interior chamber containing working fluid therein and an expandable accumulator. The expandable accumulator includes an inner layer and an outer layer at least partially surrounding the inner layer. The inner layer includes a higher fracture strain than the outer layer. The accumulator is at least partially positioned in the reservoir and at least partially immersed in the working fluid contained within the interior chamber. The accumulator is configured to exchange working fluid with the reservoir. | 04-07-2011 |
20120216672 | FLUIDIC ACTUATOR AND METHOD OF MANUFACTURE - A small, flexible fluidic actuator is presented which may be of millimeter scale in size and made of suitable flexible materials such as silicone. A manufacturing method and two analytical models for the device along with experimental test results are also disclosed. The flexible fluidic actuator devices disclosed include multidirectional fluidic actuator joints providing independently controllable multi-directional actuation movement. The dynamic behaviour of the joints for various pressure loads was also characterized and described herein. | 08-30-2012 |
20130192455 | PNEUMATIC MEMBRANE ACTUATOR AND METHOD OF ASSEMBLY - A pneumatic actuator is operable between an extended condition and a collapsed condition, and is capable of displacing a workpiece during movement between the extended and collapsed conditions. The pneumatic actuator can include a flex member ( | 08-01-2013 |
20130220111 | CRYOGENIC REFRIGERATOR - A disclosed cryogenic refrigerator includes a cylinder, a displacer reciprocally moving inside the cylinder, and an elastic unit which is provided in at least one of a pair of end regions respectively including a pair of end portions within a range of a reciprocal motion of the displacer, accumulates an elastic force when the displacer approaches the end portion, and releases the elastic force when the displacer departs from the end portion. | 08-29-2013 |
20130247751 | STRAIN ENERGY ACCUMULATOR - An expandable accumulator and reservoir assembly includes a housing defining an interior chamber configured to contain a working fluid therein. An expandable accumulator is positioned at least partially within the housing. The expandable accumulator includes at least one flexible member configured to be at least partially immersed in the working fluid contained within the interior chamber. A rigid support member is positioned in the interior chamber and outside of the expandable accumulator. The rigid support member has at least one aperture to allow passage of the working fluid. An additional flexible member is positioned outside the rigid support member and has perimeter portions sealed to the outside of the rigid support member. The additional flexible member defines a flexible boundary between a primary reservoir inside the additional flexible member and a separate secondary reservoir outside the additional flexible member. | 09-26-2013 |
20130298759 | INTEGRATED MECATRONIC STRUCTURE FOR PORTABLE MANIPULATOR ASSEMBLY - An integrated mecatronic structure for a manipulator assembly with one or more degrees of mobility controlled by one or more actuators can impart to the manipulator assembly a motion activated by control means connected to actuation means, and can include at least one flexible unit consisting of at least one flexible element attached to at least one actuator. The actuator is a volume-change actuator associated with a closely related or local dedicated power unit, including a tank and/or an element for converting the supplied power into another form of energy, able to make the manipulator assembly portable. | 11-14-2013 |
20140208937 | MINIATURE MCKIBBEN ACTUATOR - A hydraulic actuator includes a tubular bladder having first and second ends, an expandable and collapsible sleeve provided on the tubular bladder, a fluid inlet fitting provided in fluid communication with the tubular bladder and at least one mechanical connection provided along the tubular bladder. The hydraulic actuator may have flexibility and an overall diameter of less than about 5 mm. | 07-31-2014 |
20150345487 | A PISTON PUMP ARRANGEMENT FOR HYGIENIC PROCESSING APPLICATIONS - A membrane comprises a main body having a first side and a second side. The main body is made of an elastic material in order to forward a pressure e.g. formed by a piston. On the second side it is provided a coating made of plastic material such that the main body is not affected by cleaning agents, abrasive products or the like coming in contact with the second surface. | 12-03-2015 |
20150354554 | A PISTON PUMP ARRANGEMENT FOR HYGIENIC PROCESSING APPLICATIONS - A membrane arrangement to be placed between a product chamber and a hydraulic oil chamber is provided. The membrane arrangement comprises a first membrane and a second membrane. Between the membranes in a membrane interior space a marker liquid is placed. By using a sensor it can be detected when product or hydraulic oil enters the membrane interior space, which in turn means that a rupture of any of the two membranes may be detected in a reliable and cost efficient way. | 12-10-2015 |
20150369264 | SENSING METHOD FOR FIBER-DRIVEN MOTION SYSTEMS - A self-sensing fiber-driven motion system having an actuator moveable between a first configuration and a second configuration, fibers generally surrounding the actuator that change from a first orientation to a second orientation in response to force exerted upon the fibers caused by the movement of the actuator from the first configuration to the second configuration, electrically conductive elements generally following the fibers such that an electrical condition of the electrically conductive elements changes from a first electrical condition to a second electrical condition in response to the changing of the fibers from the first orientation to the second orientation, and a sensor system detecting a change of electrical condition from the first electrical condition to the second electrical condition, thereby determining a movement of the actuator in response to the change of electrical condition. | 12-24-2015 |
092091000 | Envelope having restricted fluid opening | 4 |
092092000 | Non-metallic | 4 |
20090044696 | Fluid Pressure Type Actuator - In order to improve its durability, a fluid pressure type actuator is comprises an expansible/contractible body having opposite ends sealed by plug members and expands/contracts when fluid is supplied to and discharged from the body; a wrapping body for wrapping the outer peripheral surface of the expansible/contractible body and having its opposite ends fastened and fixed to the plug members; an inlet/outlet for fluid formed in the plug members; and an auxiliary member for preventing or suppressing local deformation in which the wrapping body expands outward when the fluid is supplied to the expansible/contractible body. | 02-19-2009 |
20090173223 | ACTUATOR, DRIVING DEVICE, HAND DEVICE, AND CONVEYANCE DEVICE - A fluid pressure-type actuator is stably operable for a longer period of time than that of a conventional actuator. The actuator | 07-09-2009 |
20090223361 | FLUID PRESSURE TYPE ACTUATOR AND EXERCISE DEVICE USING THE SAME - A fluid pressure type actuator revolvable at high speeds and an exercise device using the actuator. | 09-10-2009 |
20100269689 | FLUID POURING TYPE ACTUATOR - An actuator is provided whose expansion in the radial direction can be efficiently translated into longitudinal movement when its length is contracted and extended by injecting a fluid into the tubular body. The fluid injection type actuator includes an actuator body, which is an expansion and contraction section of the actuator. The actuator body is constructed of a cylindrical rubber tube and annular fiber groups inserted and extending longitudinally therein. The annular fiber groups are each a group of fibers, such as glass roving fibers having a diameter of about 10 μm, arranged in an annular array along the circumference of the rubber tube. The arrangement allows the rubber tube to be restrained over the entirety of the actuator body longitudinally when it is expanded radially. | 10-28-2010 |
092094000 | With separate biasing means | 1 |
20090145294 | Ring Sealed Diaphragm - A diaphragm actuator for a fluid process control device comprises a housing, a diaphragm, a stem, and a plate assembly. The plate assembly includes a concave plate and a convex plate, each having inner and outer radial portions. The outer radial portions compressingly engage and retain the diaphragm. The inner radial portions are compressed together onto the stem between a shoulder of the stem and a nut threaded onto the stem. Accordingly, the concave plate forcibly engages and provides a fluid-tight seal directly with the shoulder of the stem without requiring an o-ring or any other additional sealing component. Moreover, the concave and convex plates are structurally equivalent such that the actuator may easily be switched between a biased-open configuration and a biased-closed configuration. | 06-11-2009 |
092096000 | Diaphragm type | 21 |
20080202328 | DIAPHRAGM PUMP LINER FOR CRITICAL PROCESS APPLICATIONS - One embodiment of the invention relates to a liner for a first pump housing in a fluid pump assembly. The fluid pump assembly includes a first pump housing, a second pump housing and a flexible diaphragm disposed between the first and second pump housings. The first pump housing includes a fluid access port for providing fluid communication between an inside housing chamber of the first pump housing and an outside of the first pump housing. The second pump housing is securely mated to the first pump housing. The second pump housing includes a biasing mechanism for selectively displacing a portion of the diaphragm toward the first pump housing. The liner of the invention includes a flexible member removeably secured inside the first pump housing. The liner also includes a first portion of the member being shaped to substantially conform to the interior dimensions of the inside housing chamber and a second portion of the member shaped to substantially conform to the fluid access port. The member forms an inner liner chamber inside the inside housing chamber. The member also includes a mating portion for securing the member to the diaphragm to form a seal there between. The inner liner chamber being in fluid communication with the displaceable portion of the diaphragm. Whereby the displacement of the portion of the diaphragm expels fluid from the inner liner chamber through the fluid access port. | 08-28-2008 |
20090158923 | CHAMBER, PUMP HAVING A CHAMBER AND METHOD OF MANUFACTURING CHAMBERS - The invention relates to a chamber, in particular a pump chamber, comprising a plate-shaped first half ( | 06-25-2009 |
20090241767 | DIAPHRAGM CYLINDER DEVICE - A diaphragm cylinder device may include a cylinder chamber, a piston disposed in an inside of the cylinder chamber, and a diaphragm for forming a chamber in the cylinder chamber where fluid is flown into and flown out. A fixed body includes an outer peripheral side deformation restricting part for restricting deformation of an outer peripheral side ring portion of the diaphragm when the piston is displaced, and the piston includes an inner peripheral side deformation restricting part for restricting deformation of the inner peripheral side ring portion of the diaphragm when the piston is displaced. Displacement of the piston in a direction toward a top dead point for decreasing an internal volume of the chamber and in a direction toward a bottom dead point for increasing the internal volume of the chamber is interlocked with flowing-out and flowing-in of the fluid in the chamber. | 10-01-2009 |
20100294126 | HYDRAULIC FLUID PUMP HAVING A SEALING ELEMENT - In a hydraulic fluid pump, in particular for a vehicle brake system, having a housing and a piston that is mounted in an axially movable manner in the housing in a piston chamber. A drive moves the piston and a sealing element seals off the piston chamber in the direction of the drive. The sealing element is designed as a diaphragm that extends through the piston chamber transversely with respect to the movement direction of the piston. | 11-25-2010 |
20110030551 | PUMP DEVICE AND METHODS OF MAKING THE SAME - A pump including a flexible membrane and a body defining a fluid pump chamber therebetween may be fitted with an overlying, removable, rigid cap to protect inadvertent actuation of the membrane pumping mechanism. | 02-10-2011 |
20110061526 | Diaphragm Pump - A diaphragm pump includes a pump chamber having an inlet opening and an outlet opening. A passive silicon check valve is provided at the inlet opening, and a passive silicon check valve is provided at the outlet opening. The diaphragm pump further includes a metallic pump diaphragm that adjoins the pump chamber. | 03-17-2011 |
20130014639 | DIAPHRAGMAANM Takeshita; ShujiAACI AsoAACO JPAAGP Takeshita; Shuji Aso JPAANM Shigeta; KazumaAACI KariyaAACO JPAAGP Shigeta; Kazuma Kariya JPAANM Aoba; KojiAACI KariyaAACO JPAAGP Aoba; Koji Kariya JP - Disclosed is a diaphragm having a flexible film portion and an outer peripheral flange portion integrally provided on the peripheral edge of the film portion, said outer peripheral flange portion being provided between and held by a first housing and a second housing, wherein the film portion is prevented from rising upward when the diaphragm is attached to the housings. The outer peripheral flange portion has a first pressed surface which is one surface of the diaphragm in the thickness direction and which is in close contact with the first housing, and a three-dimensional shape composed of a projected portion or a recessed portion, on the first pressed surface. When the outer peripheral flange portion is attached to the first housing and the second housing while being compressed and deformed therebetween, the three-dimensional shape defines voids in the thickness direction between the outer peripheral flange portion and the first housing. | 01-17-2013 |
20130042753 | DIAPHRAGM PUMP - A diaphragm pump ( | 02-21-2013 |
20130055889 | METHOD FOR MANUFACTURING A BENDING TRANSDUCER, A MICRO PUMP AND A MICRO VALVE, MICRO PUMP AND MICRO VALVE - A method of manufacturing a bending transducer having a drive element and a membrane includes providing the membrane and the drive element and applying a production signal to the drive element during a bonding of the drive element to the membrane such that the drive element is pre-stressed after the bonding, wherein the production signal is of a same kind as an operation signal to operate the bending transducer. | 03-07-2013 |
20130192456 | BRAKE SERVO - A pneumatic brake servo for motor vehicles having a servo housing, the interior of which is divided into at least one working chamber and at least one vacuum chamber by at least one axially movable wall which can be loaded with a pneumatic differential pressure, having a control valve which controls the differential pressure and is arranged in a control housing for connecting the working chamber to the vacuum chamber or to atmosphere. The movable wall includes a diaphragm plate and a rolling diaphragm, and the working chamber is sealed by a sealing ring which bears against the control housing and which is clamped in the radial direction in relation to a longitudinal axis of the brake servo. An actively loaded area of the movable wall is reduced by division of the working chamber into a prechamber and a main chamber to avoid stick/slip effects and reduce disruptive noises. | 08-01-2013 |
20130327209 | PNEUMATIC BRAKE ACTUATOR CHAMBER WITH ROTATIONALLY POSITIONABLE HOUSING - A rotationally adjustable brake actuator includes a pressure housing with a circumferential rim, a non-pressure housing having a second circumferential rim, and a diaphragm disposed therebetween, where a retaining ring holds the respective housings against each other such that the first rim abuts the second rim, but where the respective housings are able to be rotated with respect to the other. Further, the retaining ring includes a radially-oriented hole and a stop pin that is inserted into the hole and engages the pressure housing to prevent further rotation. | 12-12-2013 |
20140007764 | TEXTILE ACTIVATOR - The invention relates to an actuating device with at least one textile airbag that has at least two textile fabric layers that lie one over the other, said airbag comprising a first fillable chamber of a first size, wherein the chamber can be brought from a non-filled or only slightly filled inoperative state into a filled actuated state by filling with a fluid. The airbag has anchoring points on which said airbag can be connected to objects to be actuated. | 01-09-2014 |
20140096678 | BRAKE CHAMBER, BOOT MEMBER, AND BUSH MEMBER - A brake chamber includes a rod member that makes reciprocating motion within a cylinder through a pressure of compressed air or an urging force of a spring, thereby causing a pushrod for activating a brake device of a vehicle to proceed into the brake device. The brake chamber further includes a diaphragm that deforms in response to supply of the compressed air to push the rod member, and a housing that forms an accommodation space for the diaphragm. The housing is connected to the cylinder with a first end of the cylinder being inserted in the housing. The brake chamber further includes a boot member connected to the cylinder and the rod member. The boot member includes a sealing portion to prevent entry of foreign matter into a connection portion between the housing and the cylinder by contacting an inner circumferential surface of the housing. | 04-10-2014 |
20140311336 | Microhydraulic System, in particular for use in Planar Microfluidic Laboratories - A microhydraulic system includes a first hydraulically acting element as a master element with a master diaphragm, and a second hydraulically acting element as an actuator element with an actuator diaphragm. The master diaphragm is coupled fluidically to the actuator diaphragm such that deflection of the master diaphragm causes deflection of the actuator diaphragm and actuation of the master diaphragm, both via a compressive force and via a tensile force being provided. The master diaphragm, as a function of deflection of the master diaphragm, thus exerts a compressive or tensile force upon the actuator diaphragm. | 10-23-2014 |
20150075367 | LIQUID EJECTING APPARATUS - A liquid ejecting apparatus includes: an inflow channel to which liquid is supplied; an outflow channel communicated with a nozzle; a liquid chamber formed with a spiral flow channel having a substantially constant cross-sectional area between the inflow channel and the outflow channel and having a given volume; a volume changing portion configured to deform the liquid chamber so as to change the volume of the liquid chamber to a volume smaller than the given volume; and an ejection control unit configured to cause the liquid to be ejected from the nozzle in a pulsed manner by driving the volume changing portion in a state in which the liquid chamber is filled with the liquid. | 03-19-2015 |
092098000 | Entire periphery secured to rigid working chamber forming wall | 5 |
092099000 | With undistortable member secured to central portion of diaphragm | 4 |
20090000469 | Piston-cylinder unit - A piston-cylinder unit configured to provide a level adjustment function based on internal pressure includes a working cylinder, a piston rod, a working piston mounted on the piston rod, and fastening elements coupled to the piston rod and the working cylinder. Each fastening element is configured to attach to a chassis or a vehicle body. One of the fastening elements is mountable with freedom of axial movement relative to the piston rod or the working cylinder and includes a cylindrical bore and a chamber disposed between the cylindrical bore and an end surface of the piston rod or a journal of the working cylinder. The end surface of the piston rod or the journal includes a first effective pressure-actuated cross-sectional area approximately the same as a second effective pressure-actuated cross-sectional area of the piston rod. The first and the second cross-sectional areas are actuated by system pressure. | 01-01-2009 |
20100037764 | Diaphragm for Pressure-Medium-Actuated Brake Cylinders with Centering Ring - A diaphragm for a pressure-medium-actuated brake cylinder includes a radially outer fastening edge for fixing the diaphragm to the brake cylinder. At least one centering ring, which extends in an axial direction and is offset radially inward in relation to the fastening edge, is formed on the diaphragm. Via the centering ring, the diaphragm can be centered against a radially inner peripheral surface of a wall of the brake cylinder. | 02-18-2010 |
20120006192 | Adhesive Attachment Of The Disc Brake Pushrod Plate To The Diaphragm - A spring brake actuator having a push rod plate and a diaphragm is provided. A rim projects from the diaphragm for engaging a housing containing the push rod plate. A sidewall is connected to the rim, which is connected to a bottom surface, forming an outer diameter of the diaphragm. Flanges, perpendicular to the diaphragm, extend from the diaphragm forming an inner diameter for which the push rod plate is inserted into. An adhesive is placed between the diaphragm and the push rod plate, wherein the adhesive maintains an attachment and a seal between the diaphragm and the push rod plate keeping the diaphragm and the push rod plate in line with each other. | 01-12-2012 |
20120073432 | COMPRESSOR AND/OR EXPANDER DEVICE WITH ROLLING PISTON SEAL - An apparatus can include a piston movably disposed within a pressure vessel and defines a first interior region and a second interior region. The piston has a first position in which the first interior contains a gas having a first pressure and has a volume greater than the second interior region, and a second position in which the second interior region contains a gas having a second pressure and has a volume greater than the first interior region. A seal member is attached to the piston and to the pressure vessel. The seal member has a first configuration in which at least a portion of the seal member is disposed at a first position when the piston is in its first position, and a second configuration in which the portion of the seal member is disposed at a second position when the piston is in its second position. | 03-29-2012 |
092101000 | Abutment connection between diaphragm and power transmission element | 1 |
20100175550 | Air Brake Diaphragms - An air-operated diaphragm brake, more particularly a brake actuator assembly containing a diaphragm with a rib or ring design for centering and maintaining the location of a piston or push plate and for reducing debris build up in the brake actuator assembly. The diaphragm includes a projecting rim for engaging a housing containing a piston, a bottom wall having an interior surface for engaging the piston, a sidewall connecting the projecting rim with the bottom wall; and a plurality of ribs or a ring disposed on the interior surface of the bottom wall. The ribs or ring structure extends in a direction away from the intersection between the sidewall and the bottom wall, toward the center of the interior surface, and revolving around the center point of the interior surface. | 07-15-2010 |
092103000 | Specific or diverse material (47) | 1 |
20090260515 | METHOD FOR PRODUCING A RUBBER DIAPHRAGM, ESPECIALLY FOR MOTOR VEHICLE BRAKES - A method for producing a rubber diaphragm, comprising: (a) preparing materials; (b) primary forming: putting a first rubber film into a lower mold cavity of a diaphragm mold, covering the film with a canvas, positioning the canvas via a mold ring, switching on a primary upper mold on a vulcanizer, pushing the mold into a center of a hot plate of the vulcanizer, and performing primary forming for 30-40 seconds under a setting temperature of 152-157° C. and holding pressure of 16-18 MPa; and (c) secondary forming and curing: taking the mold out, removing the upper mold, putting the second rubber film into a mold cavity and switching on a secondary upper mold, pushing the mold into a center of the hot plate, and performing secondary forming and curing for 5-5.5 minutes under a setting temperature of 152-157° C. and holding pressure of 16-18 MPa. A rubber diaphragm produced by this method. | 10-22-2009 |