| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 092248000 | Nonmetallic portion | 25 |
| 20080250923 | Piston and process for manufacturing the same - A piston includes a piston body, an elastic adhesive layer, and a low thermal-conductivity sheet. The piston body has a piston top surface facing a combustion chamber, and exhibits a first thermal conductivity. The elastic adhesive sheet is formed on the piston top surface of the piston body, and includes a heat resistant resin. The low thermal-conductivity sheet is formed on the elastic adhesive layer, and exhibits a second thermal conductivity being lower than the first thermal conductivity of the piston body and falling in a range of from 5 or more to 40 W/m·K or less. | 10-16-2008 |
| 20080289491 | Powder-Metallurgically Produced Piston Body Comprising Support Webs - A powder-metallurgically produced piston body for a piston-cylinder arrangement, in particular a shock absorber piston, has a one-part piston body, a revolving or circumferential web that protrudes radially outwardly from outer surface of the piston body, longitudinal webs, and at least one traverse groove. A collar-shaped seal, made of thermally deformable material, is formed onto the piston body such that the revolving or circumferential web and the support webs are formed into the seal over at least a part of their heights. | 11-27-2008 |
| 20090173224 | UPPER PART OF A COMPOSITE PISTON - An upper part ( | 07-09-2009 |
| 20090193966 | Compressor Piston - An injection molded piston formed integrally of polymer material includes a body extending along an axis and providing a mounting surface, first and second partial cylindrical surfaces located above the mounting surface and formed with a concave recesses, a first shoe located above the mounting surface and radially outboard of the cylindrical surfaces, and a second shoe located above the mounting surface and radially outboard of the cylindrical surfaces. | 08-06-2009 |
| 20090205487 | Pressure Cylinder with Composite Piston Rod and Method for Preparing a Composite Piston Rod - A pressure cylinder comprises a cylinder housing with a cylinder space in which a fitting piston is axially movable. A piston rod ( | 08-20-2009 |
| 20090282972 | COMPOSITE PISTON FOR A MOTOR VEHICLE TRANSMISSION - A composite piston ( | 11-19-2009 |
| 20090301295 | Piston Arrangement of a Hydraulic Piston Machine - A piston arrangement includes a piston which is pin-ointed to a sliding block. The sliding block is molded directly onto the piston by injection molding so that no separate process step is required. The piston itself is part of the injection mold, an extremely precise fit can be guaranteed in the hinging area of the sliding block to the piston, which fit permits a reliable connection even when the piston surface is located in the connecting area outside the given tolerance, because by directly molding the sliding blocks onto the piston the tolerances are compensated. | 12-10-2009 |
| 20110174154 | RESIN PISTON AND METHOD FOR MOLDING RESIN PISTON - In a method for molding a resin piston by charging a preheated resin tablet into a cavity of a molding die, and by carrying out compression molding while heating, at a time point when an internal pressure of the cavity arrives at a determined pressure, by pressurizing a pressurizing margin in the molding die, resin which overflows from the molding die is discharged from a passage which is defined in an area except an outer circumferential surface of the piston, while the internal pressure of the cavity is maintained. After a thermosetting cycle has finished, the molding die | 07-21-2011 |
| 20110232480 | Piston for an internal combustion engine - A piston for an internal combustion engine has at least two hub bores for holding a piston pin. The hub bores are formed with a cylindrical inner contour and are provided with a coating comprising a resin with solid lubricant particles embedded therein. The coating forms at least one geometric deviation from the cylindrical inner contour of the hub bores. A method for producing a piston of the type, includes producing bores with a cylindrical inner contour and applying a coating medium comprising a resin with solid lubricant particles embedded therein to the inner faces of the bores by a coating tool, such that the resulting coating forms at least one geometric deviation from the cylindrical inner contour of the hub bores. | 09-29-2011 |
| 20110308383 | PISTON ACCUMULATOR - A piston accumulator includes a housing having a housing wall and a piston disposed in the housing. The housing wall and the piston form a pressure chamber. The piston is slidably moveable along the housing wall so as to change a volume of the pressure chamber. A slide layer disposed on at least one of the piston and the housing wall is configured to guide the piston free of guide rings. | 12-22-2011 |
| 20120255434 | Piston - A piston for an engine generator, comprising alternating laminated core elements and non-magnetising spacer elements arranged along a piston shaft and secured such that contact is maintained between neighbouring elements, wherein the length of the piston is at least at least five times its maximum diameter. | 10-11-2012 |
| 20130205996 | PISTON FOR A RADIAL PISTON MACHINE - A piston for a radial piston machine includes a metal core that is substantially provided with a casing made of plastic. The casing is configured to be produced from PEEK together with a bearing shell as one piece and injection-molded onto the core. | 08-15-2013 |
| 20140109765 | PLASTIC PRIMARY PISTON WITH STAMPED SHEET-METAL FUNCTIONAL INSERT FOR PENETRATION-TYPE TANDEM MASTER CYLINDER AND MASTER CYLINDER EQUIPPED WITH SUCH A PISTON - A master cylinder includes at least one primary piston and one secondary piston installed in the bore hole of the master cylinder, which pistons are used to create pressure. The primary piston has a body of molded plastic material and is equipped with a functional metallic insert which has the shape of a spherical cap capable of accommodating a push rod. | 04-24-2014 |
| 20140130664 | LIGHT COMPOSITE PISTON - A system, in certain embodiments, includes a composite piston. The composite piston comprises a piston body made of a composite material, wherein the composite material comprises a reinforcing material distributed in a matrix material. | 05-15-2014 |
| 20140150645 | Plastic primary piston with insert for a tandem penetration-type master cylinder and a master cylinder equipped with such a piston - A primary piston of molded plastic material equipped with a metallic insert and having grooves, mounted in a master cylinder comprising at least a primary piston and a secondary piston mounted in the bore hole of the master cylinder. These pistons can create pressure, respectively, in a primary pressure chamber and in a secondary pressure chamber due to the action of a push rod on the primary piston. | 06-05-2014 |
| 20140196603 | CERAMIC PLUNGER WITH AT LEAST ONE CONTROL ELEMENT - A plunger for axial movement and rotation within a pump barrel of a fuel pump comprises a substantially cylindrically shaped plunger shaft made of a ceramic material, and at least one control element for controlling a rotational angle of the plunger. The at least one control element is attached to the plunger shaft. | 07-17-2014 |
| 20160138516 | METHOD FOR PRODUCING AN OXIDATION PROTECTION LAYER FOR A PISTON FOR USE IN INTERNAL COMBUSTION ENGINES AND PISTON HAVING AN OXIDATION PROTECTION LAYER - A piston, especially a steel piston for an internal combustion engine, has a piston head which forms part of a combustion chamber. At least the piston head has an oxidation protective layer. A method for producing an oxidation protection layer is disclosed. | 05-19-2016 |
| 20160153394 | Piston with a Ring Carrier and a Glass Piston | 06-02-2016 |
| 20160169386 | MASTER CYLINDER PRIMARY PISTON | 06-16-2016 |
| 20160195088 | VANE ROTOR FOR A ROTARY VOLUMETRIC PUMP | 07-07-2016 |
| 092249000 | Flexible | 5 |
| 20110168015 | ETHYLENE-ACRYLIC BONDED PISTON WITHOUT OVEN POST CURING - A piston for an automatic transmission includes a cylindrical portion formed of a steel material and an elastomer bonded thereto. The elastomer includes an ethylene-acrylic polymer, a filler, and a hexamethylene diamine curing agent. The elastomer is compression or injection molded to the metal cylindrical portion. During the molding step, the elastomer is cured and achieves a cross-link density, strength, and other physical properties sufficient for use in an automatic transmission. Thus, the piston is formed without a post curing step. The piston provides a lower wear rate and a higher life expectancy than pistons formed with a post curing step. | 07-14-2011 |
| 20110277626 | ROCKING PISTON TYPE COMPRESSOR - In a rocking piston type compressor, a piston rod | 11-17-2011 |
| 20120085229 | MULTIPART-PISTON FOR A CYLINDER ARRANGMENT - A piston for a cylinder, in particular for a hydraulic piston storage or a hydraulic cylinder having a multipart configuration with two piston parts ( | 04-12-2012 |
| 20140060321 | FLUID PUMP PISTON AND PISTON TOOLING ASSEMBLY - A piston assembly of a reciprocating pump includes a core having a throughbore, a first annular shoulder, a first radial surface that extends from an upper end of the core to a first annular shoulder, and an elastomeric element disposed about the core, where the elastomeric element has a body including a semi-supported section having a first outer radial surface. | 03-06-2014 |
| 092254000 | With imbedded reinforcing means (241) | 1 |
| 20150040753 | FIBER-REINFORCED ACTUATOR - A fiber reinforced actuator includes first and second sets of fibers coupled with and arranged along a control volume to controllably constrain mobility of an actuator body. Fibers of the first set can be arranged with respect to fibers of the second set and with respect to a central axis to impart the actuator with various combinations of torsional and axial force responses. A third fiber may be included to form a helical actuator. A plurality of actuators can be coupled together for coordinated movement, thereby providing additional mobility directions, such as trans-actuator bending. The fiber-reinforced actuators and actuator assemblies are potential low cost, low energy consumption, lightweight, and simple replacements for existing motion devices such as servo-motor driven robots. | 02-12-2015 |
