"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 4984332 | Slide shoe Slide shoe for sliding roofs, sliding lifting roofs and the like. The slide shoe has a slide shoe body made of rubber, which can be mounted onto a slide shoe carrier, and which, in an assembled state, is displaceably guided in a longitudinal guideway whic... | 01/15/1991 |
| 4946225 | Vehicle roof A vehicle roof with a roof opening is provided in a fixed roof area that can be closed by a closure panel, which is slidable on tracks and/or may also be raised at its rearward edge, wherein an actuating device, provided to drive the closure panel, and th... | 08/07/1990 |
| 4941706 | Vehicle roof A vehicle roof that has an aperture in a fixed roof area which can be opened and closed by a closure panel, and in which a fixed interior headliner covers the inside of the fixed vehicle roof, while a slidable interior headliner is provided that covers th... | 07/17/1990 |
| 4940041 | Heater having a casing with an integrally cast mounting space for control components A heater, in particular a vehicle auxiliary heater, of the type which operates with a liquid heat exchange medium and which is tied, for example, into the coolant circuit of a motor vehicle. In this heater, a mounting space for a control device is formed ... | 07/10/1990 |
| 4936093 | Soot-filtering unit for the exhaust gas section of a diesel internal combustion engine A soot-filtering unit for an exhaust section of a diesel internal combustion engine with a supercharging device. The soot-filtering unit has at least on soot filter in an exhaust line and a regeneration device for the soot filter which includes at least o... | 06/26/1990 |
| 4932834 | Ring channel blower A ring channel blower in which, in the discharge area of the ring channel blower, a cross piece-shaped interrupter has a discharge side boundary edge that is configured such that between the inner edge of the ring channel and the facing edge of the respec... | 06/12/1990 |
| 4923033 | Heating device, particularly automotive heating device, with an integrated muffler A heating device, particularly an automotive heating device, in which a noise muffling device is integrated within the heating device. The muffler can be provided in the combustion pipe defining the combustion chamber, or the combustion pipe, itself, can ... | 05/08/1990 |
| 4919005 | Device for actuating an incompressible drive cable Device for actuating at least one helically threaded, incompressible drive cable, which is axially movable, having a drive pinion seated on a drive shaft, and a cable guideway for guiding the drive cable in the area of the drive pinion. For the purpose of... | 04/24/1990 |
| 4911497 | Ventilator roof for motor vehicles A ventilator roof for use in motor vehicles with a roof opening made in a front part of a fixed roof skin. The roof opening can be closed by a single cover that can be swung, by pivoting around a pivoting axis at or near its rear edge, into a ventilation ... | 03/27/1990 |
| 4911496 | Vehicle roof with front and rear covers Vehicle roof having a front cover and a rear cover adjoining each other in the longitudinal direction of the vehicle which, in a closed position, close a roof aperture in a fixed roof surface. Due to the effects of pure translational movement, the front cover ... | 03/27/1990 |
| 4910445 | Actuating device for movable parts for closing of apertures in vehicles and vehicle roof utilizing same Actuating device for movable parts, such for closure parts for apertures in vehicles, having a reversible direct current drive motor, a polarity reversing actuating switch in the motor circuit for applying direct current to the motor circuit with a polari... | 03/20/1990 |
| 4909750 | Electric connection device for components of heaters and heater utilizing same An electrical connection device for electrically operated components of heaters, especially vehicle heaters, in which block-shaped plug parts are molded on the lines coming from the components. The block-shaped plug parts are grouped side-by-side into a u... | 03/20/1990 |
| 4905895 | Heating device, particularly vehicle auxiliary heating device with a quadrangular heat exchanger In a heating device, particularly one intended for use as a vehicle auxiliary heating device, a heat exchanger is provided for a liquid heat exchange medium, which is of a quadrangular, preferably cuboid design, having a planar closed end. Inside the heat... | 03/06/1990 |
| 4883311 | Sliding and lifting roof for vehicles Sliding and lifting roof for vehicles having a cover which, in its closed position, closes a roof opening in a fixed roof surface, which cover is mounted on lateral guide tracks and which can be pivotally raised to bring its rear end above the fixed roof ... | 11/28/1989 |
| 4852797 | Process for operating a fuel-operated heater and control arrangement for performing the process A process for operating a fuel-operated heater, in which the instantaneous operating condition of the heater is determined according to appropriate criteria and the maximum producible heating power is adjusted according to it. The instantaneous operating ... | 08/01/1989 |
| 4841812 | Device for controlling movements of covers in sliding and lifting roofs, and sliding and lifting roof utilizing same Device for controlling the sliding and lifting movements of a cover in sliding and lifting roofs of vehicles, which device has an input drive element and an output drive element from which both the sliding and the lifting movements are derived. To this en... | 06/27/1989 |
| 4826232 | Hollow chamber seal for a movable cover of a vehicle roof and an adjustment process and roof unit utilizing same Hollow chamber seal for sealing an edge gap between an edge of a fixed roof section and a movable cover of a vehicle roof in which both a deformation of the hollow chamber and an additional deformation of the seal are possible to compensate for the gap to... | 05/02/1989 |
| 4818219 | Vaporization burner A vaporization burner for a heating device operated with liquid fuel, particularly a motor vehicle heating device, has a combustion pipe defining a combustion chamber, and an absorbent body arranged on a carrier, fuel being supplied to the absorbent body ... | 04/04/1989 |
| 4809665 | Fuel supply system for an auxiliary motor vehicle heating device A fuel supply system for an auxiliary vehicle heating device to which fuel can be supplied via the fuel supply system of an internal combustion engine. A fuel storage reservoir is provided which supplies fuel to an auxiliary vehicle device, and is arrange... | 03/07/1989 |
| 4786102 | Sunroof apparatus of vehicle roof A vehicle roof having a fixed roof structure through which a roof opening extends and which is closable and selectively openable by a sunroof apparatus having a pair of cover panels which, in a position closing the roof opening, are disposed one behind th... | 11/22/1988 |