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| Number | Title | Issue Date |
| 7784393 | Drive unit with an interior drive unit and an exterior drive unit A drive unit with a radial interior drive element and a radial exterior drive element as well as a free-wheel arranged between the interior drive element and the exterior drive element. The interior drive element and the exterior drive element are axially displaceab... | 08/31/2010 |
| 7278348 | High-pressure pump for a fuel injection system of an internal combustion engine A high-pressure pump having a drive shaft and at least one pump element including a pump piston driven in a reciprocating motion by the drive shaft. A ring on which the pump piston is braced via a support element is rotatably supported on a portion of the drive shaf... | 10/09/2007 |
| 7195235 | Adjustable disc spring systems and methods An adjustable disc spring system includes at least one beveled disc spring axially aligned with the adjustable spacer. The adjustable spacer is compressible in a substantially axial direction relative to the at least one beveled disc spring. ... | 03/27/2007 |
| 7086322 | Fluidic device In a fluidic drive for disposition between two components which are movable relative to each other comprising a hollow body with a duct for supplying fluid to, and discharging it from, the hollow body wherein the hollow body consists at least partially of a bellows ... | 08/08/2006 |
| 6852035 | Welding bellows capable of absorbing torsion A welding bellows capable of absorbing torsion is equipped with a bellows core made from thin metal plates wherein the centers of the inner diameter and the outer diameter are made eccentric to each other. The metal plates are combined so as to make it possible to a... | 02/08/2005 |
| 5743166 | Bellows The invention relates to a bellows, in the bellows body of which are provided supporting frames which are welded to the outer pleats of the bellows body. The connection between the outer pleats of the bellows body and the supporting frames is formed by a ... | 04/28/1998 |
| 5261317 | Bellows with dirt collecting recesses A welded bellows is formed by welding together a stack of annular elements such that spacer rings are located between adjacent elements at the inner and outer diameters and are the locations for the welds. The spacer rings eliminate very small clearances/... | 11/16/1993 |
| 4924756 | Bellows core and method and apparatus for fabrication thereof A metal bellows core is comprised of a plurality of resilient annular metal diaphragm members which are brazed together. A method for fabricating a metal bellows core is comprised of steps including brazing the metal diaphragm members together simultaneou... | 05/15/1990 |
| 4824338 | Pump arrangement which includes axially extending cylindrical ring noses on coned rings with a centering ring and seal ring radially of the face wherein two of the ring nose are oppositionally directed and laid together In the European patent application publication EP OS O No. 102 441 a high pressure pump is shown which uses tapered rings (disc spring derivatives) which are clamped together as a pump chamber. The clamping rings required cutting into sections which is ex... | 04/25/1989 |
| 4822255 | Pump for pressures exceeding one thousand atmospheres by the provision of a half-pressure chamber around a high pressure chamber between coned ring elements A pump has in a housing a revolvable shaft which drives a piston stroke guide body. Drive pistons are provided with piston shoes which run on the guide face of the piston stroke guide body and drive fluid supply pistons of smaller diameter. The pump prefe... | 04/18/1989 |
| 4799654 | Fluid flow facilitating arrangement which includes a coned ring An arrangement which includes a coned ring forms with the coned portion an interior space. The interior space decreases and increases its volume, when the coned portion of the ring is compressed and de-compressed. The coned ring has a radial outer portion... | 01/24/1989 |
| 4745846 | Devices which take in and expel fluid by a chamber which may border a coned ring In a fluid pump or motor improvements are provided to the piston shoes therein to permit a higher pressure in the respective device. Other improvements are done to the hydrostatic bearings in radial piston or radial chamber type fluid motors and pumps. A ... | 05/24/1988 |
| 4701113 | Pump arrangement which includes a working chamber which is bordered by a coned ring with a seal lip on the inner face of the coned ring In the European patent application publication EP OS No. 0 102 441 a high pressure pump is shown which uses tapered rings (disc spring derivatives) which are clamped together as a pump chamber. The clamping rings required cutting into sections which is ex... | 10/20/1987 |
| 4690623 | Fluid pumps, fluid motors and devices, which include a coned ring In a fluid pump or motor improvements are provided to the piston shoes therein to permit a higher pressure in the respective device. Other improvements are done to the hydrostatic bearings in radial piston or radial chamber type fluid motors and pumps. A ... | 09/01/1987 |
| 4579045 | Bellows A bellows including a reenforcement member having an edge attached to each side of the bellows body to eliminate distortion and damage upon the application of lateral forces. The reenforcement member has a central opening so as not to obstruct the movemen... | 04/01/1986 |
| 4559866 | Crossed-bellows controller A crossed-bellows controller which includes four bellows arranged in cruciform. The bellows are surrounded by a movable baffle ring which serves as a baffle plate for a nozzle. A frame-shaped cage is provided within the baffle ring, with the cage being co... | 12/24/1985 |
| 4550833 | Variable-volume receptacle, especially for use as a compensating receptacle in building heating systems A variable-volume receptacle, especially for use as a compensating receptacle in heating systems. The receptacle includes two membrane-like sheets of rubber or synthetic material; the sheets have the same surface areas, and are placed against one another.... | 11/05/1985 |
| 4457213 | Bellows structure and method Flexible welded metal bellows comprising a plurality of diaphragms comprising flexible metal annuli free plates or rings having similar inner and outer diameters, alternate pairs of said plates having their outer and inner peripheries, respectively, welde... | 07/03/1984 |
| 4327740 | Incentive spirometer A volume-type incentive spirometer for respiration therapy is disclosed. The spirometer includes a central tubular support on which is mounted a collapsible bellows-like chamber. Fluid communication is provided between the support and the interior of the ... | 05/04/1982 |
| 4285197 | Isothermal chamber and heat engines constructed using said chamber Isothermal chamber comprising deformable walls and acting as a heat exchanger. It is constituted by two walls 3,3a of complementary shape defining between them an enclosure 4 containing a gas, the said walls having a deformable zone 5 and a rigid zone 6 p... | 08/25/1981 |
| 4237775 | Diaphragm for pressure sensors A diaphragm consisting of multiple arches configured such that radial compliance is increased and pressure responsive radial compression loading will approximate radial tension loading resulting from deflection of an associated pressure sensor mechanism. ... | 12/09/1980 |
| 4172412 | Fluid operated diaphragm assembly having a pair of like opposed diaphragms A fluid operated diaphragm assembly having a pair of diaphragm members each provided with annular inner and outer peripheral portions separated from each other by an annular fluted portion. A ring member is disposed between the outer peripheral portions o... | 10/30/1979 |
| 4011126 | Drum for producing blanks for car tires A drum for producing blanks for car tires of rubber with straps wherein the drum consists of coaxial rings movable axially relatively to each other and having supporting surfaces for the beads of tire blanks. According to the invention each ring has an an... | 03/08/1977 |
| 3935795 | Actuating mechanism An actuating mechanism for moving an indicator, an operational tool or a structual component with a high degree of precision over precisely predeterminable distances to desired points of operation, which comprise a shaft, slidably mounted upon said shaft ... | 02/03/1976 |
