Patents by Inventor Karl-Heinz Bauer

Karl-Heinz Bauer 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: 4887520
    Abstract: In an air outlet device, a closure flap (9) is pivotably mounted in a houg body (1). The closure flap can be tilted in front of an air passage opening (3) by means of an actuating part (14). To avoid the closure flap (9), in its open position, taking up a considerable amount of space in the air exit shaft (4) and in order to keep the number of components required small, the closure flap (9) is of circular ring segment-shaped design in cross-section. The pivot axis of the closure flap (9) lies in the center point of the radius of the circular ring segment shape. The actuating part (14) is molded onto the closure flap (9).
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: December 19, 1989
    Assignee: Preh, Elektrofeinmechanische Werke Jacob Preh, Nachf. GmbH & Co.
    Inventor: Karl-Heinz Bauer
  • Patent number: 4840114
    Abstract: An air outlet device is to grant in its closing position a tight closing e from whistling noises. This is to be achieved by simple means and despite component tolerances. For this purpose longitudinal gaps formed between a closure flap and seat edges before the closing process narrow towards that end of the closure flap which is remote from the actuating part. During the closing movement the closure flap is distorted elastically so that the longitudinal gaps close at first in the sections remote from the actuating part.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: June 20, 1989
    Assignee: Preh, Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert
  • Patent number: 4823238
    Abstract: An air outlet device including an air outlet channel having an open front and being located near an actuating part is provided with a plug base for a lamp behind the actuating part in a light-transmitting acceptance chamber. The lamp is to be replaceable from the front side without having to remove the actuating part toward the front. For this purpose the acceptance chamber is provided with a passage opening to the air outlet channel. The plug base is combined with a guide bead which, in the operating position, extends through the passage opening into the air outlet channel and ends at the front edge thereof as a handle. The plug base can be pulled through the air outlet channel and the passage opening out of the acceptance chamber and then be reintroduced into the latter.
    Type: Grant
    Filed: May 6, 1988
    Date of Patent: April 18, 1989
    Assignee: Preh, Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert
  • Patent number: 4803323
    Abstract: In an electric manual switching device, a printed circuit board is to be protected from environmental influences. For this purpose, a foil continuously extending over the printed circuit board is provided in the switch housing between switching contacts and pushbuttons. The foil can be a flat component or a part shaped like a bag.
    Type: Grant
    Filed: January 30, 1987
    Date of Patent: February 7, 1989
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert
  • Patent number: 4800466
    Abstract: An illumination device for a front panel with illuminated areas, the latter eing illuminated by an incandescent lamp sitting in a connection base located behind the front panel through at least one light guide. The connection base is placed behind the front panel so that the incandescent lamp points away from the cover member. The lamp extends behind the front panel to the light guides. To make the incandescent lamp easily replaceable without loss of light, a cover member is removably attached to the illumination device such that removal of the cover member permits ready access to the incandescent lamp/connection base.
    Type: Grant
    Filed: May 3, 1988
    Date of Patent: January 24, 1989
    Assignee: Preh, Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert, Rudiger Maidhof
  • Patent number: 4790199
    Abstract: In a control device, especially for heating and ventilation systems in mo vehicles, comprising a rotatable control knob and a linearly movable setting member, a lever is provided for coupling the knob and member and converting rotational motion of the knob into linear movement of the setting member. To achieve this, the control knob 2 is provided with a guide slope extending at an acute angle to the axis of rotation. A shorter arm portion of the lever is controlled by the guide slope. A longer arm portion of the lever is actuated by movement of the shorter arm portion against the guide slope and acts upon a coupled setting member in a linear manner.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: December 13, 1988
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Viktor Geiss
  • Patent number: 4763101
    Abstract: A locking slide switch is adapted to set a resistor depending on the length f travel. A key body has a row of teeth with which a pinion meshes. A locking push-button is provided on the shaft of the pinion. In order to make locking from both sides possible, a second pinion or an elongated pinion is guided in the row of teeth. On this pinion is provided a second push-button, which can also be blocked. An on-off switch is additionally provided.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: August 9, 1988
    Assignee: Preh, Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerhard Spiller
  • Patent number: 4757164
    Abstract: A pushbutton switch comprising a housing within which a pushbutton can move ith respect to a housing socket is described. Within the housing is placed a switch plunger which moves longitudinally and can also pivot through a small angle. A contact bridge, which can be pivoted in an oversprung fashion between two fixed contacts, is disposed in the housing. The placement of the contact bridge is governed by a switch rocker, which is arranged in a hinged fashion in the housing. This allows the switch plunger and switch rocker to engage. The counterbearing for the contact bridge consists of a knife-edge bearing in the switch rocker. Between the switch plunger and the switch rocker is a return spring, arranged so that in the rest position of the pushbutton, the switch plunger occupies a pivoted position remote from the middle position. The cross motion of the switch plunger is halted, depending on the direction of motion of the pushbutton, by a constraining guide on each side.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: July 12, 1988
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Edgar Maisch
  • Patent number: 4734918
    Abstract: A luminous band display device is shown for the thermometer scale-like diay of the position of a control, e.g., of a turning knob or slide, having a series of luminous segments arranged in a circular or straight pattern. The luminous segments are formed by the ends of light guides which are led out from a generally cylindrical luminous center in a star-shaped or similar pattern. The luminous center consists of a cylindrical socket receiving a light source, and a cover which carries at least one color band and which can be rotated relative to the socket by means of the control is located between the light source and the beginning of the light guide. The light guides are arranged over approximately three fourths of the circumference of the luminous center. In order for all luminous segments of the entire display scale to light in only one color even in the stop positions of the control, an outlet opening and a guide for the color bands projecting from the socket are provided.
    Type: Grant
    Filed: May 17, 1984
    Date of Patent: March 29, 1988
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Reinhold Wolf
  • Patent number: 4685350
    Abstract: A device for fixing an end of a shouldered casing containing and guiding a ulling or pressing cable includes a holding block with a recess extending axially into the block and a slot extending axially through and radially into the block and into the recess for inserting the casing into the block and recess. An edge surface of the recess surrounds and interferringly engages a shoulder of the casing and while a bottom of the recess interferringly engages the shoulder. A flexible tongue is provided facing the recess and serving as a stop for either the transverse end surface of the end of the casing or a similar transverse side surface of the shoulder.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: August 11, 1987
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nacht. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Heinz Fick
  • Patent number: 4660019
    Abstract: In a switch, for example, for a device such as a drill, a key switches an ectrical switching bridge at the beginning of the key displacement. A variable resistor is adjusted depending on the travel of the key, thereby controlling device speed. In order to achieve an adjustment of the key end stop, a slide displaceable in the transverse direction is mounted on the key, which slide has a stop edge projecting in the longitudinal direction. A stop border is provided on the switch cover and configured relative to the travel of the slide so that the distance between the stop edge and the stop border varies according to the displaced position of the slide, thereby enabling operator control of the device speed.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: April 21, 1987
    Assignee: Preh Elektrofeinmechanische Werke, Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Franz Rutterschmidt, Gerhard Spiller
  • Patent number: 4656926
    Abstract: A control unit for setting heating, air conditioning and/or ventilation in otor vehicles is provided. The control unit comprises a body adaptable for insertion into the instrument panel of a motor vehicle, said body having a front panel and a rear carrier member. At least one control knob, by means of which a driving bevel gear connected with it drives at least one driven bevel gear, is rotatably mounted in the front panel. An elongated adjusting lever which swings over a limited range cooperates with the driven bevel to actuate a Bowden cable, which in turn is capable of controlling heating, air conditioning or ventilation systems, particularly flaps in the system which control air flow.
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: April 14, 1987
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh, Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Reinhold Moret
  • Patent number: 4646206
    Abstract: The invention pertains to a control unit, especially for setting heating, oling and/or ventilation systems in motor vehicles. Sliding members are guided between two end positions in an oblong body. Setting members, e.g., louvers or motors, are adjusted by means of these sliding members via transmission means. A step-down unit is provided as the transmission means, which consists of a first toothed rack molded onto the sliding member and of a second toothed rack molded onto the body, and a gear which is mounted rotatably between the two toothed racks and moved when the sliding member is moved. The gear is connected to an adjusting means, e.g., a rod, which in turn operates the setting member.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: February 24, 1987
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Reinhold Wolf
  • Patent number: 4618183
    Abstract: The invention relates to a multi-purpose furniture piece consisting of a rectangular seat plane having two longitudinal sides and two transverse sides, and four legs rigidly connected to the seat plane at the corners thereof and extending perpendicularly thereto. This multi-purpose furniture piece comprising:two rungs having their ends affixed to the free ends of each two legs located at one longitudinal side,a wall rigidly connected to the seat plane and to the rungs so as to extend perpendicular to the seat plane and parallel to the transverse sides thereof substantially intermediate therebetween,and an end plane affixed to a transverse side of the seat plane and/or to the legs located at this transverse side and being of a smaller dimension in the direction of the legs than the length of said legs.
    Type: Grant
    Filed: December 30, 1985
    Date of Patent: October 21, 1986
    Inventor: Karl-Heinz Bauer
  • Patent number: 4431876
    Abstract: A key switch comprises a casing, at least one key slide guided in the cas against the force of a spring and at least one J-shaped leaf spring having a long spring arm and a short spring arm connected to the long arm by a curved intermediate part, the leaf spring being clamped to assume a unilateral curvature between two abutments, one fixed and the other moveable, the leaf spring having the free end of its long spring arm supported in a first abutment in the key slide and its curved intermediate part in a second abutment formed in a fixed contact member provided in the casing. For providing a minimum space the leaf spring is mounted parallel to the sliding direction in an elongated recess of the key slide.
    Type: Grant
    Filed: May 14, 1981
    Date of Patent: February 14, 1984
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Wolfgang Labude, Karl-Heinz Bauer, Edgar Maisch
  • Patent number: 4419639
    Abstract: A key assembly for receiving units employed in communications engineering, articularly for television receivers, comprises a plurality of mutually releasable depressible keys adapted to switch on storable, selectively adjustable electrical values supplied by channel memories consisting of a plurality of voltage dividers for capacitance diode tuning, further comprising, in association with the respective depressible keys, a plurality of depressible and rotatable knobs adapted to be rotated by means of a tool, said knobs being concealed behind a cover member slidably guided in a recess, said knobs being adapted to provide channel tuning and, if required, selection of the desired frequency range, said frequency range being adjustable by rotating the respective depressible and rotatable knob into any of a plurality of detented angular positions with the knob being in a position differing from the tuning position of the knob, and comprising a switch which is adapted to be actuated by means of a push rod which is c
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: December 6, 1983
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert, Wolfgang Labude
  • Patent number: 4408346
    Abstract: A key assembly for receiving devices employed in communication engineering, particularly for broadcasting and television receivers, comprises a casing provided with mutually releasable keys in the form of press buttons adapted to switch on storable, selectively adjustable electrical values supplied by channel memories including a plurality of voltage dividers for capacitance diode tuning and including, in association with the individual press buttons, rotatable and slidable knobs for channel tuning and, if desired, for selecting a given frequency range, said frequency range being adjustable by rotating the depressible and rotatable knob into any of a plurality of detented angular positions, with said depressible and rotatable knob being in a position, preferably a depressed position, different from the tuning position.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: October 4, 1983
    Assignee: Preh Elektrofeinmechanische Werke Jakob Preh
    Inventor: Karl-Heinz Bauer
  • Patent number: 4368441
    Abstract: A key assembly for receivers for communication systems, especially radio television receivers, comprises a casing, keys adapted for mutual release by means of a spring-loaded locking plate for switching in storable, selectively adjustable electrical values of channel memories consisting of a plurality of voltage dividers for variable capacitance diode tuning, rotary and slidable press buttons associated with the respective keys for channel tuning and optionally for selecting a frequency range, which is adjustable in a preferably pressed position of the rotary press button being different from the tuning position by turning into various locking angular positions, as well as a channel and frequency range indicator scale. According to the invention said indicator scale simultaneously is the locking plate for the keys.
    Type: Grant
    Filed: April 16, 1981
    Date of Patent: January 11, 1983
    Assignee: Pren Elektrofeinmecahnische Wereke Jakob Preh Nachf. GmbH & Co.
    Inventors: Karl-Heinz Bauer, Gerold Eckert, Reinhold Wolf