| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 091004000 | HYDRO-PNEUMATIC | 7 |
| 20090038470 | HYDRO-PNEUMATIC PRESSURE TRANSFORMATION DEVICE AND METHOD FOR OPERATION - Proposed is a hydro-pneumatic pressure transformation device with a working piston ( | 02-12-2009 |
| 20110174151 | PNEUMATIC BRAKE BOOSTER - A tandem-type pneumatic brake booster, in particular for hydraulic vehicle brake systems, having a housing comprising a first and a second housing half shell, the interior of which is divided with the aid of a partition into a front and a rear booster chamber, wherein the partition has a centrally arranged, circular cavity, through which a control housing or a cylindrical control housing extension extends, and the partition rests sealingly against the control housing or the control housing extension by a sealing element, having a first and a second movable wall, which respectively subdivide the front and the rear booster chamber into a first low-pressure chamber and a first working chamber and into a second low-pressure chamber and a second working chamber, having at least one connecting conduit between the first working chamber and the second working chamber in order to equalize the pressure between said two working chambers. | 07-21-2011 |
| 20120097021 | BOOTSTRAP ACCUMULATOR SYSTEM WITH TELESCOPING ACTUATOR CYLINDER - A bootstrap accumulator system includes an actuator cylinder that drives an accumulator piston through a multiple of nested actuator sleeves, comprising a multistage actuator cylinder. | 04-26-2012 |
| 20140000448 | HYDRAULIC-PNEUMATIC ACTUATOR | 01-02-2014 |
| 20140109760 | VALVE FOR CONTROLLING A HYDROPNEUMATIC DEVICE FOR PRESSURE INTENSIFYING, AND HYDROPNEUMATIC DEVICE FOR PRESSURE INTENSIFYING WITH A VALVE - A valve for controlling a hydropneumatic device for pressure intensifying having a working plunger and an intensifier plunger for pressure intensifying, the intensifier plunger being designed to move the working plunger hydraulically with a comparatively high transmission ratio on account of a pneumatic actuation, the valve having a differential plunger arrangement with a first plunger with a first active plunger face in a first pressure space and a second plunger with a second active plunger face in a second pressure space, the first plunger being coupled to the second plunger, the first pressure space being equipped with a first connector for, for example, a pneumatic return stroke space of the working plunger, and the second pressure space being equipped with a second connector for a pneumatic pressure source which differs from the return stroke space. | 04-24-2014 |
| 20150143987 | COMBINED HYDRAULIC/PNEUMATIC ACTUATION SYSTEM WITH INTERNAL PNEUMATIC PISTON - A combined hydraulic and pneumatic actuation system including a cylinder, a first piston, and a second piston. The cylinder may include a first cylinder portion configured to hold or retain a first fluid and a second cylinder portion configured to hold or retain a second fluid. The first piston can be operatively coupled or in fluid communication with the first fluid, and the second piston can be operatively coupled or in fluid communication with the second fluid. The second piston may be disposed between the first cylinder portion and the second cylinder portion. In an embodiment, the first piston can move or translate axially within the cylinder independently of the second piston, and an increase in pressure in the second cylinder portion can actuate the first piston and the second piston. Further, in embodiments, the first fluid can comprise a liquid, and the second fluid can comprise a gas. | 05-28-2015 |
| 20190145191 | DEPTH COMPENSATED ACTUATOR AND USE OF SAME IN ASSOCIATION WITH A TRANSPORTABLE HEAVE COMPENSATOR | 05-16-2019 |
