Patents by Inventor Josef Kern
Josef Kern 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).
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Patent number: 6674353Abstract: The magnet system is part of a relay, which displays particularly low-noise switching. Components of the magnet system include a core unit (1), an armature (6) and a not represented coil, whereby the armature (6) is preloaded in an open position. The low-noise switching behavior is achieved in that the armature (6) is designed in such a manner that the armature pole face in the region of its front end (8a) in the closing direction is essentially perpendicular to a connecting line (16) towards the bearing edge (12). In addition, when the armature (6) is attracted, the core pole face (9) extends at least substantially parallel to the armature pole face (8). The arrangement according to the invention requires no additional parts for the purpose of noise reduction, resulting in a particularly simple and compact structure.Type: GrantFiled: June 17, 2002Date of Patent: January 6, 2004Assignee: Tyco Electronics Logistics AGInventors: Martin Hanke, Ralf Hoffmann, Josef Kern, Karsten Pietsch
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Patent number: 6536512Abstract: The invention relates to a heat exchanger block having a row of heat exchanger walls (1f, 1g) which are arranged at a distance from one another and define intervening heat-exchange medium flow chambers (1c, 3) for a first and a second heat-exchange medium, and a plurality of spaced thermally conductive rods (2) which extend all the way through the row of heat exchanger walls (1f, 1g) and the intervening heat-exchange medium flow chambers (1c, 3). The heat exchanger walls are formed by flat-tube sections (1) which are arranged at a distance from one another in the direction of the row and the interiors (1c) of which form first heat-exchange medium flow chambers, and the flat-tube interspaces (3) of which form second heat-exchange medium flow chambers.Type: GrantFiled: May 23, 2001Date of Patent: March 25, 2003Assignee: Behr GmbH & Co.Inventor: Josef Kern
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Publication number: 20020029871Abstract: The invention relates to a heat exchanger block having a row of heat exchanger walls (1f, 1g) which are arranged at a distance from one another and define intervening heat-exchange medium flow chambers (1c, 3) for a first and a second heat-exchange medium, and a plurality of spaced thermally conductive rods (2) which extend all the way through the row of heat exchanger walls (1f, 1g) and the intervening heat-exchange medium flow chambers (1c, 3). The heat exchanger walls are formed by flat-tube sections (1) which are arranged at a distance from one another in the direction of the row and the interiors (1c) of which form first heat-exchange medium flow chambers, and the flat-tube interspaces (3) of which form second heat-exchange medium flow chambers.Type: ApplicationFiled: May 23, 2001Publication date: March 14, 2002Inventor: Josef Kern
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Patent number: 6272734Abstract: The relay is formed from two half-shells which are formed by extrusion coating the functional elements with plastic. A first half-shell is formed by extrusion coating a coil with a U-shaped core, while a second half-shell is formed by extrusion coating a spring support and at least one fixed contact element. A contact spring having a flat armature is attached to the spring support. The relay is adjusted and at the same time sealed by the process of joining the two half-shells.Type: GrantFiled: January 11, 1999Date of Patent: August 14, 2001Assignee: Tyco Electronics Logistics AGInventor: Josef Kern
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Patent number: 6266867Abstract: A method of manufacturing a relay wherein the relay has a coil body that is formed by plastic injection molding. The method further includes the step of embedding into the coil body injection mold a contact spring terminal pin and a number of fixed contact carriers and coil terminal pins. The method also includes the step of embedding a core into the coil body injection mold.Type: GrantFiled: December 16, 1999Date of Patent: July 31, 2001Assignee: Tyco Electronics Logistics AktiengesellschaftInventor: Josef Kern
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Patent number: 6252479Abstract: The relay comprises a first housing part in which a coil having a U-shaped core is embedded, as well as a second housing part in which at least one spring support as well as at least one mating contact element are anchored. A contact spring with a flat armature is attached to the spring support. The relay is adjusted and additionally sealed by joining the two half-shells.Type: GrantFiled: January 11, 1999Date of Patent: June 26, 2001Assignee: Tyco Electronics Logistics AGInventors: Josef Kern, Angelo Polese
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Patent number: 6225880Abstract: The inventive relay has a base body in the form of a coil body (1), the base body supporting a core (16), a yoke (20), an armature (22) and a contact spring (23) which is connected to the armature. Fixed contact supports (34) and a contact spring connection pin (5) which consist of semi-finished wire with a preferably rectangular or square cross-section are embedded in a flange (12) of the coil body (1). The inventive electromagnetic relay is therefore very simple to produce. There is no wasted material, no punching tools are needed for the contact connection parts and since no particles of plastic are abraded by insertion, there is no risk of this impairing the quality of the relay.Type: GrantFiled: April 19, 2000Date of Patent: May 1, 2001Assignee: Tyco Electronics CorpInventor: Josef Kern
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Patent number: 6218614Abstract: A component, in particular a relay or other electromechanical component, has a parallelepipedal housing whose outer sides respectively have projections in the form of ribs or nubs integrally formed on them. As a result of this, impact stresses occurring when the component is handled are absorbed up to a defined magnitude and, above this specified magnitude, are identified externally by damage to the projections. This prevents components from being fitted despite invisible prior damage and from subsequently failing due to the invisible prior damage.Type: GrantFiled: February 22, 1999Date of Patent: April 17, 2001Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 6078491Abstract: A hybrid relay with an electromagnetic relay system having at least one coil one core yoke unit, at least one armature which switches contacts and one power semiconductor whose switching path, in combination with the contacts switches the load circuit of the relay wherein the contacts are switched on no-load by offsetting the control of the power semiconductor in time resulting in good heat dissipation and a compact design with few individual parts.Type: GrantFiled: November 9, 1998Date of Patent: June 20, 2000Assignee: Siemens AktiengesellschaftInventors: Josef Kern, Bican Samray
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Patent number: 6040751Abstract: The battery section switch is switched between a terminal post and a main circuit using a contact arrangement. The contact arrangement can be locked in its closed position via a toggle spring device that acts directly on a free end of a contact spring. The toggle spring device is also coupled to the armature of an electromagnet system which, given excitation, releases the interlock and opens the contact arrangement. Given this battery section switch, the on-board network of a vehicle can be quickly switched current-free, given a collision or given a short-circuit, in order to reduce the risk of fire or in order to prevent a discharge of the battery given some other malfunction.Type: GrantFiled: July 20, 1999Date of Patent: March 21, 2000Assignee: Siemens Electromechanical Components GmbH & Co. KGInventors: Thomas Haehnel, Juergen Breitlow-Hertzfeldt, Bernd Saffian, Josef Kern
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Patent number: 5936496Abstract: An electromagnetic relay is provided with a coil body that is preferably composed of ceramic with a winding and a U-shaped core yoke whose ends are bridged by a flat armature. The armature actuates an insulating switching spring made of ceramic or a similar material that, crosses the armature at about a 90.degree. angle, and extends between the ends of the core yoke and bridges two cooperating contacts at its movable end with a bridge contact. The relay can be utilized even in a very small design at high ambient temperatures.Type: GrantFiled: December 19, 1997Date of Patent: August 10, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5911588Abstract: In order to seal the plug-in region between a relay and a plug base, a peripheral sealing ring is integrally formed in one piece on the dimensionally stable plastic of one part using the two-component injection-molding process. The sealing ring is elastically deformed by latching elements which engage one in the other, thereby providing the desired sealing of the arrangement.Type: GrantFiled: December 9, 1997Date of Patent: June 15, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5896075Abstract: A relay has a coil form, preferably made of ceramic, with a winding and a U-shaped core yoke, whose ends are bridged by a flat armature. The armature actuates an insulating switching spring, made of ceramic or a similar material, which bridges two counter-contacts with a bridge contact on its movable end. The relay can be used at high ambient temperature, even with a very small construction.Type: GrantFiled: December 18, 1997Date of Patent: April 20, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5889451Abstract: The relay has at least one switching system with a base body (1) forming a baseplate (11), in which base body a contact spring connection element (4) and mating contact elements (5, 6) are anchored and on which base body a coil (21, 22) with a core (23) and a yoke (24) is arranged upright with the coil axis perpendicular to the baseplate, an armature being arranged between the coil and the baseplate. A contact spring (3) connected to the armature (26) is constructed in a U-shaped manner, and the resultant two spring limbs form a connection limb (31) and a contact limb (32) having high current conductivity. The relay can be produced in a simple manner with simple parts either as a single relay or as a double or multiple relay.Type: GrantFiled: January 27, 1998Date of Patent: March 30, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5850170Abstract: An electromagnetic differential current trigger is provided which includes a coil with a U-shaped yoke. A permanent-magnetic armature is guided axially inside the coil that retains the armature against a yoke leg opposing the force of a compression spring in the idle position, whereas a compression spring actuates a power switch via an actuation element given triggering by a differential current in the coil. The differential current trigger requires few parts and can be magnetically balanced in a fast and efficient manner.Type: GrantFiled: November 10, 1997Date of Patent: December 15, 1998Assignee: Siemens AktiengesellschaftInventor: Josef Kern
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Patent number: 5521574Abstract: The coil has a coil former having an essentially cylindrical coil tube (2) as a support for a winding (5). Arranged on the external circumference of the coil tube are tab-shaped projections (8) which extend into the winding stack (5) and prevent twisting and axial movement in the event of the winding shrinking.Type: GrantFiled: April 28, 1994Date of Patent: May 28, 1996Assignee: Siemens AktiengesellchaftInventors: Reinhold Lebschy, Josef Kern
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Patent number: 5382934Abstract: A relay having two coils which are arranged axially flush on a base body (1), wherein each coil has a winding (23, 33) and a core (14, 15) connected by means of a U-shaped yoke (12). A single armature (13) is supported on a center section of the yoke (12) such that it can be changed over between the inner ends of the two cores (14, 15). In addition, two contact springs (7, 8) are arranged between the two cores, on both sides of the same, parallel to the armature. The contact-making ends of the two contact springs rest on a common center contact element (61) in the quiescent state. Depending on which winding (23 or 33) is energized, a corresponding contact spring (7 or 8 respectively) is lifted off the center, contact element (61) and moved into contact with an outer contact element (51 or 52 respectively). The relay is advantageously suited as a pole-reversal relay for driving DC motors having a changing rotation direction (e.g., as found in motor vehicles).Type: GrantFiled: January 10, 1994Date of Patent: January 17, 1995Assignee: Siemens AktiengesellschaftInventors: Horst Hendel, Josef Kern, Bernhard Kleine-Onnebrink
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Patent number: 5324901Abstract: A contact arrangement for a change-over contact relay has a movable contact spring (2), on the free end (3) of which switching contact pieces (5, 6) are arranged on both sides, the current to be switched being supplied via an electrical connecting line (9) to the switching contact pieces (5, 6). [2.2] In order to permit a mass distribution, which is as symmetrical as possible, in the region of the free end (3) of the contact spring (2) and a supply, which is as loss-free as possible, of the current to be switched to the switching contact pieces (5, 6), [it is provided that] the switching contact pieces (5, 6) are connected directly in an electrically conducting manner to the one end (8) of the electrical connecting line (9). For this purpose, the one end (8) of the connecting line (9) or a switching contact piece (5, 6) preferably has an extension piece, the end face of which forms a joining face for the purpose of producing the electrically conducting connection.Type: GrantFiled: January 30, 1992Date of Patent: June 28, 1994Assignee: Siemens AktiengesellschaftInventors: Horst Hendel, Josef Kern
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Patent number: 5099654Abstract: A method for controlling a motor vehicle air conditioning system is described. The motor vehicle air conditioning system comprises a refrigeration circuit including a refrigerant compressor, a condenser, an evaporator and a throttle device arranged upstream of the evaporator. The condenser is associated with a ventilating fan and the evaporator is associated with a blower. The compressor capacity, the condenser capacity and the evaporator capacity are directly or indirectly sensed by sensor means and supplied as electrical variables to an electronic control circuit which logically combines these input signals and generates output signals in dependence on at least two of these capacity values and including further parameters. The control circuit acts on electrically controllable acturators for influencing the compressor capacity, the condenser capacity and/or the evaporator capacity.Type: GrantFiled: May 17, 1989Date of Patent: March 31, 1992Assignee: Sueddeutsche Kuehlerfabrik Julius Fr. BEHR GmbH & Co. KGInventors: Wilhelm Baruschke, Roland Burk, Hans-Joachim Ingelmann, Hans Kampf, Josef Kern, Karl Lochmahr, Rolf Wallner, Reinhold Weible
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Patent number: 4745967Abstract: A heat exchanger is described that is constructed of several flat tubes arranged in parallel and at a distance to one another which, at their two front sides, are each closed off tightly. The end areas of the tubes are provided with connecting openings extending transversely to their longitudinal axis and leading to the adjacent flat tube or to the adjacent group of tubes. An advantage of the invention is its ease of manufacture.Type: GrantFiled: January 27, 1986Date of Patent: May 24, 1988Assignee: Suddeutsche Kuhlerfabrik Julius Fr. Behr GmbH & Co. KGInventor: Josef Kern