In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Application No. | Application Title | Issue Date |
| 20120067205 | Process for Purifying Compressed Air, Compressed Air Purification Appartus and Motor Vehicle Having Such an Apparatus In a compressed air purification apparatus for motor vehicles, compressed air under static pressure in a pressure conduit (3) is firstly freed of impurities such as hydrocarbon compounds and oil products and subsequently dried. To ensure effective freeing of the ... | 03/22/2012 |
| 20110277625 | PISTON AIR COMPRESSOR A piston air compressor having a suction chamber and a connection chamber separated from the suction chamber. An air channel is provided from the connection chamber to the suction chamber.... | 11/17/2011 |
| 20110259189 | CONTROL DEVICE FOR A COMPRESSED AIR PREPARATION DEVICE OF A VEHICLE, COMPRESSED AIR PREPARATION DEVICE, VEHICLE SYSTEM, VEHICLE, AND METHOD FOR CONTROLLING THE SAME The invention relates to a control device (3) for a compressed air preparation device (1) of a vehicle (2), wherein the control device (3) outputs output signals for adjusting feed phases and regeneration phases of the compressed air preparat... | 10/27/2011 |
| 20110140028 | Valve The invention relates to a valve having at least one inlet chamber (1) and at least one outlet chamber (3) that can be connected to each other or blocked from each other by means of an actuator (5, 12, 13, 14, 15), having a control chamber (6... | 06/16/2011 |
| 20100187902 | PARKING BRAKE MODULE FOR A PRESSURE MEDIUM-OPERATED BRAKE SYSTEM The invention relates to a parking brake module (10) for a pressure medium-operated brake system of a vehicle having a parking brake function by means of at least one spring brake cylinder (12). Said parking brake module (10) comprises a first valve... | 07/29/2010 |
| 20100059126 | Compressed air supply device for motor vehicles A compressed air supply system for motor vehicles includes a compressor, control electronics, an air dryer having an inlet channel for non-dried compressed air, an outlet channel for the dried compressed air, and a dehumidification device through which the compressed ai... | 03/11/2010 |
| 20080089759 | Thread For A Screwed Connection An improved threaded connection, in which a first part having a female thread is threadably engageable with a second part having a male thread. The first and second parts have different strengths in at least the area of the thread turns, and the thread turns have cross-... | 04/17/2008 |
| 20080040013 | Method and Device for Identifying Malfunctioning of a Compressed Air Consumer Circuit in an Electronic Compressed Air System for a Vehicle To detect a failure of a compressed air consumer circuit in a compressed air system for vehicles, pressure is continuously measured in compressed air consumer circuits and evaluated in an electronic control unit which compares the pressure values and/or determined negat... | 02/14/2008 |
| 20080007111 | Method for Refilling Brake Circuits After a Large Consumption of Compressed Air and Device for Carrying Out Said Method A method and system is provided for refilling vehicle operational brake circuits after large consumption of compressed air. The operational brake circuits are compressed air consumer circuits of a consumer part of a vehicle compressed air system. The operational brake c... | 01/10/2008 |
| 20070278854 | Pressurized Medium Consumer Device A pressurized-fluid-consuming system includes secondary pressurized-fluid consumer devices for drawing pressurized fluid from at least one pressurized-fluid storage reservoir which also supplies additional pressurized-fluid-consuming devices. The secondary consumer devi... | 12/06/2007 |
| 20070262280 | Method and Device for Identifying a Defect or Failure of a Compressed Air Load Circuit in an Electronic Compressed Air Installation for Vehicles To detect a defect or failure of a compressed air load circuit in a compressed air system for vehicles, pressure is measured in compressed air load circuits and evaluated in an electronic control unit, which briefly shuts off the compressed air load circuits, measures p... | 11/15/2007 |
| 20070246998 | Electronic Compressed-Air System An electronic compressed-air system includes a compressed-air supply part having a compressor and a consumer part having load circuits. The load circuits are supplied with compressed-air via solenoid valves. At least one load circuit is provided with a pressure reservoi... | 10/25/2007 |
| 20070096554 | Electronic compressed air system An electronic compressed air system for vehicles includes a compressed air supply part having a compressor, a compressed air consumer part having load circuits forming an air-suspension circuit, and service-brake circuits having reservoirs. The load circuits are supplie... | 05/03/2007 |
| 20050269321 | Housing for an electronic or mechatronic unit A device housing, especially for accommodating an electronic unit or a mechatronic unit, has parts which are sealed against one another in assembled condition via an encircling, stationary seal. At least one pressure-relief device is integrated into the seal for admissi... | 12/08/2005 |