Patents by Inventor Wolfgang Kofink

Wolfgang Kofink 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).

  • Publication number: 20190383415
    Abstract: The invention relates to an electromagnetic valve having a valve housing (2) and a valve opening (29) with a valve seat (8) and an electric drive coil (3) and a magnetic yoke (11) and a longitudinal centre axis (14). The magnetic yoke (11) is assigned a metallic plate armature (5) which is mounted movably and has an armature disc (48). The armature disc (48) lies sealingly with a sealing surface (9) against the valve seat (8) in a first switching position of the valve, and opens the valve seat (8) in a second switching position of the valve. According to the invention, the valve seat (8) is configured on a valve component (18), wherein the valve component (18) has at least one valve opening (29) which lies at a radial spacing (r) from the longitudinal centre axis (14). The valve seat (8) of the valve opening (29), which valve seat (8) corresponds with direct body contact with the sealing surface (9) of the armature disc (48) of the plate armature (7), consists of metal.
    Type: Application
    Filed: January 18, 2018
    Publication date: December 19, 2019
    Inventors: Jens Peter Ramler, Patrick Levien, Patrick Schlauch, Peter Kofink, Wolfgang Layher, Bruno Staiger, Marc Staiger, Stefan Waldinsperger, Marcus Wieduwilt
  • Patent number: 5868208
    Abstract: A power tool has a drive mechanism with an output shaft which performs an intermittent rotary motion. The output shaft drives, via an overrunning clutch, a tool drive shaft to drive a tool, which thus performs a quasi-continuous rotary motion that, as the load on the machine increases, transitions increasingly into a discontinuous rotary motion. The power tool can advantageously be used as a hand-held power tool for screwing, drilling, sawing, sanding, and the like, a high output torque with a low reaction torque being achievable as a result of the intermittent drive mechanism.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 9, 1999
    Inventors: Andreas Peisert, Wolfgang Kofink, Michael Nothofer, Manfred Ludwig
  • Patent number: 4739677
    Abstract: An adjusting device in accordance with the invention for vehicular door locking systems operates such that in each adjusting action the adjusting force of the drive motor is checked to determine whether it is great enough to operate the output element. Only when this checking has a positive result is an adjusting action initiated.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: April 26, 1988
    Assignee: SWF Auto-Electric GmbH
    Inventors: Wolfgang Kofink, Werner Philipps, Eckhardt Schmid
  • Patent number: 4698560
    Abstract: In vehicular electric door lock arrangement the running time of a first adjusting unit is longer than the worst possible running times of the other adjusting units. The first adjusting unit operates a switching unit via which the running time of the other adjusting units is preset. The separate timing element for the control of the various adjusting units used in prior systems can be omitted, because this timing function is provided by one of the adjusting units.
    Type: Grant
    Filed: November 25, 1985
    Date of Patent: October 6, 1987
    Assignee: SWF Auto-Electric GmbH
    Inventors: Marcel Andrei-Alexandru, Wolfgang Kofink, Eckhardt Schmid, Volker Tietz
  • Patent number: 4652781
    Abstract: A drive unit for adjusting window panes, sunroofs, and seats in a vehicle has a reversible electric motor behind which is inserted a worm gear with a worm shaft. To prevent an undesired or unauthorized adjustment of a motor vehicle part, a brake device is provided. The brake device has a mechanical, one-way brake element with which the worm shaft may be coupled by an axial displacement. In order to reduce the effect of the brake device on the worm shaft when the window pane is adjusted by the electric motor, the brake element is the rotatable part of a rotation limiting device and, in the axial direction, it is supported on a stop.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: March 24, 1987
    Assignee: SWF Auto-Electric GmbH
    Inventors: Marcel Andrei-Alexandru, Wolfgang Kofink, Hans Prohaska
  • Patent number: 4484094
    Abstract: This invention relates to an electric small-size motor comprising an armature, whose shaft 31, whose laminated core 25 and whose commutator 26 are secured relative to one another in an integral plastics part 28, which also insulates the laminated core 25 from the windings. In order to couple the armature with a driven shaft a receiver 32 with a cross-section deviating from the shape of a circle is provided in the shaft 31 from at least one end of the latter, into which receiver the other shaft 33 with a matching cross-section can engage.
    Type: Grant
    Filed: September 6, 1983
    Date of Patent: November 20, 1984
    Assignee: ITT Industries, Inc.
    Inventors: Rolf Ade, Heinz Heimann, Wolfgang Kofink, Hans Prohaska
  • Patent number: 4464593
    Abstract: To separate cooling fluid, such as water, from the commutator space of a dynamo electric machine, typically a motor for battery-energized vehicle, a disc (18) of insulating material is fitted on the commutator (5), terminating at its end portion in a slinger structure (20, 21) which is positioned in intergaging relation with respect to a labyrinth (21, 22) secured to the housing of the machine. Cooling fluid is admitted to the space within which all the electrical windings (3, 9) are located, so that the cooling fluid, for example water, can fill the space (28) of the housing, while being separated from the space (57) within which the commutator (5) and commutator brush holder (7) is located.
    Type: Grant
    Filed: November 10, 1982
    Date of Patent: August 7, 1984
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4354150
    Abstract: A slip ring less, three-phase, AC generator especially for motor vehicles, in which the compound winding is subdivided into individual components which are directly interconnected within the branches of the rectifier bridge supplying direct current for the on-board electrical system so that the voltage drop across the compound winding is sensed and compensated by the regulator. The compound winding can be wound of wire having a small diameter.
    Type: Grant
    Filed: April 16, 1980
    Date of Patent: October 12, 1982
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4265496
    Abstract: In order to improve the lubrication of relatively moving parts of machinery, in particular of bearings carrying rotating shafts, there is provided a lubricant reservoir adjacent to the bearing in which a movable transport member is located. The transport member may be, for example, a spring, one end of which is attached to the shaft rotating in the bearing so that the centrifugal force imparted to the spring causes its free end to enter into the lubricant reservoir whereupon, when the shaft is slowed down or stopped, the elasticity of the spring causes its return to a rest position, during which lubricant is positively displaced in the direction of the bearing. The motion of the transport member may also be effected by other external influences, for example by a magnetic field.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: May 5, 1981
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4262224
    Abstract: For more effective cooling of directly driven claw-pole, typically automotive alternators, a system of internal passageways is provided through which cooling oil is forced from the pressurized engine oil supply system. The oil flows directly over surfaces of the rectifiers or their heat sink, the exciter core, and the stator housing. A portion of the oil is branched off in a metered quantity at the inlet directly to a shaft bearing, which it cools and lubricates. Various passageways systems are described, including one which permits electrical feed-throughs and the diodes to be mounted dry. A particular configuration is described for a shaft bearing, in which between an armor bushing and a cast bearing support hub there are annular oil channels connected to longitudinal oil channels to evenly distribute the pressurized oil around the bearing.
    Type: Grant
    Filed: June 1, 1979
    Date of Patent: April 14, 1981
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Kofink, Georg Binder
  • Patent number: 4246807
    Abstract: A drive motor that may be an internal combustion engine or an electric motor is operated at substantially constant speed or, in the case of an internal combustion engine, at one of two substantially constant speeds. The speed of travel of the vehicle under various load conditions is varied by a drive control pedal operating a transducer that furnishes one input to a signal processor while a torque transducer in the engine drive shaft provides a second input to the processor. The processor output controls the positioning device that determines the transmission ratio of a continuously variable belt drive transmission by pressing together the halves of one pulley of the belt drive while separating the halves of the other pulley, varying their effective diameter with respect to the wedge-shaped belt in opposite directions.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: January 27, 1981
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4239978
    Abstract: To supply intermittently required high-power loads, such as heater applications in an automotive vehicle, a dual armature winding three-phase alternator has a first or main winding connected to a first or main rectifier bank to supply power to vehicular loads, for example at 12 V nominal level; an auxiliary winding is connected to a rectifier which can be switched to operate as a half-wave rectifier, in parallel with the main winding and main rectifier to supply the ordinary loads when high-power loads are not connected; or to be switched in a full-wave bridge rectifier configuration to provide additional power at elevated voltage, added to the voltage of the rectifier receiving current from the main windings, for example providing 16.multidot..sqroot.3=28 V added to the nominal supply voltage of 12 V=40 V voltage to the heater load.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: December 16, 1980
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4222001
    Abstract: In known generators and motors a regulator circuit connected in series with the exciter winding creates too much resistance to allow self-excitation to start at very low speeds. The regulator circuit is therefore shunted by a positive temperature coefficient resistor. This has very low resistance at low temperatures causing sufficient current flow through the exciter winding even at low speeds.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: September 9, 1980
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4156171
    Abstract: To provide for automatic charging of two batteries which are series connected, particularly to supply the on-board network of an automotive vehicle from a main battery and to supply additional higher surge voltage output to the vehicle starter, a three phase alternator has output rectifiers connected to two phases, and the rectifier to the main battery, the third phase with its rectifier being connected to the auxiliary battery. The third phase rectifier may, instead of diodes, include a diode-transistor combination, the transistor being controlled by voltage of the second battery to, selectively, charge the second battery or connect the third phase for charging of the main battery. The phase windings of the alternator may all be identical, the lighter loading of the phase connected to the additional battery providing the higher output voltage required thereby.
    Type: Grant
    Filed: September 8, 1977
    Date of Patent: May 22, 1979
    Assignee: Robert Bosch GmbH
    Inventor: Wolfgang Kofink
  • Patent number: 4039915
    Abstract: An electronic controlled switch, for example a bipolar thyristor, is included in the armature circuit between the brushes, conduction of the thyristor being controlled by a pulse source providing pulses in synchronism with the rotation of the machine for selectively timed energization of the thyristor and hence connection of the armature winding. The pulse source may be a mechanical interrupter coupled to the machine shaft, a separate pulse source, or the like, and the thyristor can be directly controlled from the pulse source by means of slip rings, or non-contacting pulse transfer circuit elements, such as inductive elements.
    Type: Grant
    Filed: April 29, 1975
    Date of Patent: August 2, 1977
    Inventor: Wolfgang Kofink