Patents by Inventor Alfred Krappel

Alfred Krappel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6171121
    Abstract: In a battery cable clamp for vehicles with a mounting device for a cable end, in which two clamp parts (2,4) are connected together in an electrically conducting fashion by a pressed connection that can be broken with a high separating force by an auxiliary drive, the pressed connection is composed of a conical contact surface. An explosive capsule (3) may be used to provide the separating forces. A plastic sleeve (18,18′) may be used to control travel of the expelled clamp part and to prevent accidental reengagement. The explosive capsule may be part of the battery clamp (8) or part of the battery lead (5).
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: January 9, 2001
    Assignees: Bayerische Motoren Werke Aktiengesellschaft, Auto-Kabel Hausen GmbH and Co. Betriebs-KG
    Inventors: Alfred Krappel, Robert Albiez, Maximilian Groebmair, Guenther Noelle
  • Patent number: 6144111
    Abstract: In a current interrupter for a battery lead for motor vehicles, with a contact element between the two connecting parts for their electrical connection and with an auxiliary drive for separating the two connecting parts, contact element applies only a transverse force that is directed essentially perpendicularly to the connecting parts. A retaining force which is directed opposite to the action of the auxiliary drive is mainly applied at one point and is spatially separated from the contact element.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: November 7, 2000
    Assignees: Bayerische Motoren Werke Aktiengesellschaft, Auto-Kabel Hausen GmbH & Co. Betriebs-KG
    Inventors: Alfred Krappel, Robert Albiez, Maximilian Groebmair, Bernhard Fahrnbauer
  • Patent number: 5877563
    Abstract: A fuse device for a cable in vehicles, includes a current strength sensor having an evaluation circuit connected downstream, and a severing device for the cable. The severing device disconnecting the cable when a current strength exceeds a limiting value. The sensor, evaluation circuit, and severing device are located in a housing in which a section of the cable also runs.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: March 2, 1999
    Assignee: Bayerische Motoren Werke Aktiengellschaft
    Inventors: Alfred Krappel, Robert Albiez, Maximilian Groebmair
  • Patent number: 5818121
    Abstract: In an on-board wiring system for vehicles has a battery line for connecting a generator with an energy accumulator and a disconnection switch, actuated as a result of an accident, arranged therein. Additional consuming devices are connected to the energy accumulator by way of a consuming device line. The disconnection switch 2 is constructed such that, in addition to the battery line 3, it also interrupts the consuming device line 9 and in the process also disconnects it from the battery line 3.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 6, 1998
    Assignee: Bayerische Motoren Werke AG
    Inventors: Alfred Krappel, Robert Albiez, Maximilian Groebmair, Bernhard Fahrnbauer
  • Patent number: 5725399
    Abstract: A battery cable terminal (2') is integrally combined with the housing (11) of a safety separator (2) to form a compact unit. An on-board cable (starter cable 4) is fastened to the separator (2) in such a way as to be separated by an incorporated powered drive element (6) upon accident-conditioned actuation thereof through a control pulse from an accident sensor (airbag collision safety system 1) and in such a way as to prevent by the use a spacer (14, 14') other electroconductive touch contacts.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: March 10, 1998
    Assignee: Auto-Kabel Hausen GmbH & Co. Betriebs-KG
    Inventors: Robert Albiez, Maximilian Grobmair, Alfred Krappel, Gunther Nolle
  • Patent number: 5621197
    Abstract: A device for disconnecting the flow of current in the positive or impregnated battery cable of a motor vehicle has an electrically conductive plug-in connection that can be placed in the positive or impregnated battery cable in the form of a housing and a plug connector. The housing contains a gas generator of the kind used, for example, for belt tighteners. The gas generator is arranged in the housing in such a way that the propellant gas produced when the gas generator is ignited electrically separates the connector from the housing and this in turn interrupts the flow of current in the positive or impregnated battery cable. Consequently, a short circuit that might occur in the event of an accident and which could otherwise lead to damage of the cable tree and then set the vehicle on fire, is avoided in good time.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: April 15, 1997
    Assignees: TEMIC Bayern-Chemie Airbag GmbH, Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Richard Bender, Christian Herget, Lothar Maier, Alfred Krappel, Robert Albiez, Maximilian Grobmair
  • Patent number: 5156555
    Abstract: A connection device consisting basically of a socket member (1) exhibiting a termination area (2) for the connection of an electric cable and a contact area (4) joined to it by means of a base (1a), the contact area being in the form of tines and intended to receive and hold a mating pin (3), and of a separate driver member (5) in the form of a closed ring which is preferably manufactured of heat recoverable material. In order to create an electrical connection device where the driver member being retained against the contact area, creates both a mechanical force and keyed-in connection between the socket member and the mating pin when in its second functional position, a recess which is at least partial formed into the mating pin, and the tines and driver member are formed and positioned relative to each other in such a way that the driver element partially fits into the recess when in its second functional position.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: October 20, 1992
    Assignee: Leopold Kostal GmbH & Co.
    Inventors: Wolfgang Mohs, Georg Schroder, Maximilian Grobmair, Alfred Krappel, Robert Albiez, Rudolf Fekonja
  • Patent number: 5038745
    Abstract: An ignition unit for internal combustion engines with an ignition coil having a ferromagnetic core integrated with a spark plug connector, about the main core of which is arranged a primary winding and a secondary winding surrounded by an insulating body; the ignition coil and the spark plug connector are so arranged to one another that the axial directions of the spark plug connector and of the main core of the ignition coil form at least approximately a right angle.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: August 13, 1991
    Assignee: Bayerische Motoren Werke AG
    Inventors: Alfred Krappel, Johannes Guggenmos, Josef Holzmann, Georg Buchholz, Robert Tschuk
  • Patent number: 4914343
    Abstract: The outer or side electrode of a spark plug is configured as a flat plate confronting the center electrode to define a gap, and fixed to the threaded shell or body of the plug by a plurality of spider legs. A plurality of holes are formed in the plate to improve the plug durability and retard any discharge voltage increases.
    Type: Grant
    Filed: December 23, 1988
    Date of Patent: April 3, 1990
    Assignees: NGK Spark Plug Co., Ltd., Bayerische Motoren Werke A.G.
    Inventors: Junichi Kagawa, Wataru Matsutani, Alfred Krappel, Josef Holzmann, Johannes Guggenmos
  • Patent number: 4509482
    Abstract: The invention relates to an electronically controlled ignition system in which a correction signal is obtained from a control signal derived directly from an ignition pulse sensor. The invention consists of producing a saw-tooth signal with a rising flank and a falling flank within one cycle of the square wave control signal, using only one flank of the said control signal. The ratio or relationship between the gradients of the two flanks is a measure of the change in the corrected signal relative to the control signal. The electronically controlled ignition system is particularly suitable for compensating for the ignition advance, caused by an induction sensor, as compared to the mechanical position of the rotor at low engine speeds.
    Type: Grant
    Filed: September 2, 1982
    Date of Patent: April 9, 1985
    Assignees: Telefunken Electronic GmbH, Bayerische Motoren Werke AG
    Inventors: Willy Minner, Alfred Krappel, Johannes Guggenmos
  • Patent number: 4506643
    Abstract: The timing of the signal to the primary of an ignition coil is controlled by selectively connecting impedance to a transducer in accordance with an engine operating parameter such as revolutions per minute.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: March 26, 1985
    Assignee: Bayerische Motoren Werke A.G.
    Inventors: Alfred Krappel, Johannes Guggenmos, Josef Holzmann
  • Patent number: 4363304
    Abstract: The operation of the interrupting switch in the primary circuit of an ignition coil triggers a first timing circuit having a fixed interval or one sometimes modified by engine loading, at the end of which a timing interval signal is generated which lasts for a second interval. The latter is applied to switch a resistor across the timing wave generator to load down its output voltage. In this manner, an engine equipped with a simple ignition shift providing spark advance in the low speed region and then steady or slightly retarding timing thereafter, can be caused to provide a retarding priming shift that sets in at a medium speed, increases and then tapers off with higher speeds so as to cover a speed range in which the engine is particularly sensitive to engine knock and avoiding the inefficiencies which would be necessary if the simple ignition shift system had to be backed off to avoid intersecting the knock boundary.
    Type: Grant
    Filed: June 1, 1981
    Date of Patent: December 14, 1982
    Assignee: Robert Bosch GmbH
    Inventors: Adolf R. Fritz, Michael Gottschick, Alfred Krappel, Johannes Guggenmos
  • Patent number: 4162478
    Abstract: In order to test at least one of the operating and capacitating conditions of an automotive vehicle, plural parallel circuits are included in a test circuit associated with sensors for each condition to be tested. These parallel circuits contain at least one pilot lamp and at least one switching unit. The switching unit may have simple switch contacts or may contain an electronic switching element. During normal operating conditions, the switching units are closed to provide a conductive path therethrough. During non-normal operating conditions and/or capacity conditions, the switching units open. For testing any condition, an individual test switch, which energizes each pilot lamp in the plural parallel circuits, is connected in series with the switching contacts and/or the conductive electronic switching elements of the switch units and with the pilot lamps in the plural circuits.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: July 24, 1979
    Assignee: Bayerische Motoren Werke AG
    Inventors: Manfred Huber, Karl Kapfhammer, Erwin Schweiger, Franz Jochmann, Alfred Krappel