Patents Assigned to Mertik Maxitrol GmbH & Co. KG
  • Patent number: 9696033
    Abstract: The aim is to provide a gas control valve in which the specified desired value range can be subsequently shifted easily in order to optimize the range of settable temperatures for the heating device without exceeding the device- and/or installation-specific admissible use conditions. To this end, a setting element (17) which serves to change the position of a temperature-sensitive element (8) and thus to actuate a switch for activating a valve has a threaded part (12) that is screwable into the housing (1) of the gas control valve. In this case, the two are connected together in a rotationally secure manner via a releasable locking mechanism, wherein a tubular latching part (14) that is firmly connected to the threaded part (12) is arranged between the pot-like setting element (17), partially surrounding the threaded part (12) with a recess (18), and the threaded part (12).
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: July 4, 2017
    Assignee: MERTIK MAXITROL GMBH & CO. KG
    Inventors: Barbara Happe, Peter Keil
  • Patent number: 9562617
    Abstract: The invention relates to a gas flow monitor wherein the closing flow has the same value in a plurality of installation positions. According to the invention, the gas flow monitor is further intended to be suitable for small pressure loss values. Design and production are intended to be as simple as possible. The gas flow monitor according to the invention, comprising a gas-tight housing (1) that has a valve seat (4) for an axially movable closing body (10) in the interior that to is held against the direction of flow in the opening position by spring force, is characterized in that the play of said mounting is greater in the open position and continuously narrows upon beginning the closing movement.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: February 7, 2017
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventor: Klaus Schulze
  • Patent number: 9523501
    Abstract: The aim of the invention is to provide a gas regulator fitting that ensures simple manual operation. In particular, activation and deactivation, respectively, are to be made possible with one motion. Furthermore, the invention aims to ensure that even in the event the voltage source malfunctions, the gas regulator fitting will be deactivated. To accomplish this, an ignition safety magnet (34) is excited by a current flowing over a first micro switch (13) when the gas regulator fitting is activated by means of the manual actuation of a tappet (10) having selector contours (15; 16) in a longitudinal direction against the force of a return spring (12).
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: December 20, 2016
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventor: Barbara Happe
  • Publication number: 20160215977
    Abstract: The object of the invention is to provide a system for controlling combustion air supply, in which the air supply to the primary and secondary air supply can be infinitely variable. The object is also to enable said system to be retrofitted in furnaces having a primary and a secondary air supply. To achieve this, a housing (1) having an internal, pot-shaped insert (5) provided with radial openings (9; 10) associated with either the primary air supply (7) or the secondary air supply (8) of the furnace is located between the furnace and the supply line for the combustion air, the cross-sections of said openings being infinitely variable via a pivotally mounted (17) motion link, the rotary angle of which is restricted by one or more stops (19). The motion link (17) is actuated by means of a drive unit (13) which in turn can be controlled by a control unit (23).
    Type: Application
    Filed: August 28, 2014
    Publication date: July 28, 2016
    Applicant: MERTIK MAXITROL GMBH & CO. KG
    Inventor: Peter Keil
  • Publication number: 20160069565
    Abstract: The aim is to provide a gas control valve in which the specified desired value range can be subsequently shifted easily in order to optimize the range of settable temperatures for the heating device without exceeding the device- and/or installation-specific admissible use conditions. To this end, a setting element (17) which serves to change the position of a temperature-sensitive element (8) and thus to actuate a switch for activating a valve has a threaded part (12) that is screwable into the housing (1) of the gas control valve. In this case, the two are connected together in a rotationally secure manner via a releasable locking mechanism, wherein a tubular latching part (14) that is firmly connected to the threaded part (12) is arranged between the pot-like setting element (17), partially surrounding the threaded part (12) with a recess (18), and the threaded part (12).
    Type: Application
    Filed: March 17, 2014
    Publication date: March 10, 2016
    Applicant: MERTIK MAXITROL GMBH & CO. KG
    Inventors: Barbara Happe, Peter Keil
  • Patent number: 9201429
    Abstract: The intention is to provide an actuator which makes it possible to change the opening time and to manually lock the supply of gas. For this purpose, the actuator consists of a housing (9) which is closed by a cover (10). A working diaphragm (8) is clamped between the housing (9) and the cover (10) and subdivides a space enclosed by the housing (9) and the cover (10) into a working pressure chamber (11) and an outlet pressure chamber (13). A lever (15) which is supported on the working diaphragm (8) and acts on a gas valve (2) via a drive plunger (16) is pivotably mounted in the housing (9). The actuator also has an adjustable pressure control valve (6) and a solenoid valve (7). When an inlet pressure line (12) is closed, the solenoid valve (7) opens a connecting channel (28) between the working pressure chamber (11) and the outlet pressure chamber (13). In contrast, in the open position, the inlet pressure line (12) is connected to the working pressure chamber (11) and to the pressure chamber (21).
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: December 1, 2015
    Assignee: MERTIK MAXITROL GMBH & CO. KG
    Inventor: Detlef Bayer
  • Patent number: 9157636
    Abstract: A gas regulating fitting that ensures simple manual operation is to be created. In particular, the device is to be capable of being switched both on and off in one operation. To that end, a microswitch (12) connected to an electronic control unit is arranged on the housing (1). The microswitch is operated when a tappet (10) arranged axially to the safety pilot valve (26) and the main valve (19) is manually operated. The electronic control unit thereby receives an electrical signal whereby the gas regulating fitting is activated in its switched-off state, and the gas flow flowing through the open safety pilot valve (26) is therefore ignited, whereas the holding current flowing to the thermoelectric safety pilot valve (26) is interrupted in the switched-on state of the gas regulating fitting, and the gas regulating fitting is therefore deactivated. The gas regulating fitting can be used to ignite and regulate a gas flow flowing to a burner.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: October 13, 2015
    Assignee: MERTIK MAXITROL GMBH & CO. KG
    Inventor: Barbara Happe
  • Patent number: 9151497
    Abstract: A gas regulator fitting is to be devised that prevents distortions of the temperature value to be regulated caused by ambient temperature fluctuations. Retrofitting without intervention into the gas-conducting space is also to be made possible. To that end, one or more bimetal discs (17) are arranged outside the gas-conducting space of the gas regulator fitting, between an operating element (18) for setting the required temperature and a longitudinally movable ram (8) whose position can be altered by means of metal bellows (9) which are connected to a temperature sensor (11) by a capillary line (10). The ram (8) protruding into the gas-conducting space activates a switch which controls a valve for regulating the gas stream to the main burner. The bimetal discs (17) are arranged in such a manner that their overall height, which is altered in the direction of movement of the ram (8) depending on the ambient temperature, can influence the position of the metal bellows (9).
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: October 6, 2015
    Assignee: MERTIK MAXITROL GMBH & CO. KG
    Inventors: Barbara Happe, Frank Pusch
  • Publication number: 20150090197
    Abstract: The aim of the invention is to devise a flow control for a continuous-flow water heater, which is used to control the flow of gas to a burner of a heat exchanger as a function of the passage of water, in which only one operating element has to be actuated. Because of the reduction in the apertures through the housing wall of the flow control, at the same time the risk leaks occurring is reduced. Furthermore, the expenditure in manufacturing is to be minimized. To this end, in addition to the operating element (8), a switching element (9) is rotatably mounted on a spindle (7) projecting from the water-carrying housing (5), wherein a rotary movement of the operating element (8) can be transmitted via drivers (10; 11) to the switching to element (9), which also has a switching contour (13) by means of which a fixedly arranged microswitch (14) can be actuated, by means of which an electronic ignition and monitoring device (3) can be electrically actuated, by means of which gas flow to the burner can be shut off.
    Type: Application
    Filed: February 21, 2013
    Publication date: April 2, 2015
    Applicant: Mertik Maxitrol GmbH & Co. KG
    Inventor: Peter Albrecht
  • Publication number: 20140272740
    Abstract: The aim of the invention is to provide a gas regulator fitting that ensures simple manual operation. In particular, activation and deactivation, respectively, are to be made possible with one motion. Furthermore, the invention aims to ensure that even in the event the voltage source malfunctions, the gas regulator fitting will be deactivated. To accomplish this, an ignition safety magnet (34) is excited by a current flowing over a first micro switch (13) when the gas regulator fitting is activated by means of the manual actuation of a tappet (10) having selector contours (15; 16) in a longitudinal direction against the force of a return spring (12).
    Type: Application
    Filed: October 22, 2012
    Publication date: September 18, 2014
    Applicant: Mertik Maxitrol GmbH & Co. KG
    Inventor: Barbara Happe
  • Publication number: 20140137954
    Abstract: A gas regulator fitting is to be devised that prevents distortions of the temperature value to be regulated caused by ambient temperature fluctuations. Retrofitting without intervention into the gas-conducting space is also to be made possible. To that end, one or more bimetal discs (17) are arranged outside the gas-conducting space of the gas regulator fitting, between an operating element (18) for setting the required temperature and a longitudinally movable ram (8) whose position can be altered by means of metal bellows (9) which are connected to a temperature sensor (11) by a capillary line (10). The ram (8) protruding into the gas-conducting space activates a switch which controls a valve for regulating the gas stream to the main burner. The bimetal discs (17) are arranged in such a manner that their overall height, which is altered in the direction of movement of the ram (8) depending on the ambient temperature, can influence the position of the metal bellows (9).
    Type: Application
    Filed: December 10, 2013
    Publication date: May 22, 2014
    Applicant: Mertik Maxitrol GmbH & Co. KG
    Inventors: Barbara Happe, Frank Pusch
  • Patent number: 8668490
    Abstract: The invention relates to a method and an arrangement for igniting a gas flow by means of remote control. The aim of the invention is to maintain the current consumption so low that an integratable voltage source can be used. To this end, a thermoelectric safety pilot valve (17) is opened and the escaping gas ignited by the actuation of an electronic control unit (5) fed by a voltage source. Said thermoelectric safety pilot valve (17) is maintained open by a safety pilot magnet (18) by means of a holding current from the voltage source until a thermocouple (22) provides the required holding current once the gas flow has been ignited or a defined holding time is exceeded.
    Type: Grant
    Filed: February 11, 2004
    Date of Patent: March 11, 2014
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventors: Barbara Happe, Jürgen Blank
  • Patent number: 8662101
    Abstract: A device suitable for retrofitting in laid pipelines is intended to be able to be placed and fixed in place in the pipeline. Transport of the device to the installation location is intended to be performed using as little force as necessary, and the sealing element is intended to be displaced without contact and thus without wear. To this end, the device, in the interior of which a shut-off device (6) is disposed, is designed so that an offset, conically tapering region (10) is adjacent to a front cylindrical region (3) and is bounded by a stop collar (12) on which a connecting contour (7) for a coupling piece of a drive element is connected. A sliding piece (13) made of an expandable material is displaceably disposed in the axial direction on the conically tapering region (10), comprising a circumferential groove in which a spring-loaded clamping ring (15) is supported.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: March 4, 2014
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventors: Werner Herrfurth, Thomas Vogt
  • Patent number: 8602047
    Abstract: A gas regulator fitting is to be devised that prevents distortions of the temperature value to be regulated caused by ambient temperature fluctuations. Retrofitting without intervention into the gas-conducting space is also to be made possible. To that end, one or more bimetal discs (17) are arranged outside the gas-conducting space of the gas regulator fitting, between an operating element (18) for setting the required temperature and a longitudinally movable ram (8) whose position can be altered by means of metal bellows (9) which are connected to a temperature sensor (11) by a capillary line (10). The ram (8) protruding into the gas-conducting space activates a switch which controls a valve for regulating the gas stream to the main burner. The bimetal discs (17) are arranged in such a manner that their overall height, which is altered in the direction of movement of the ram (8) depending on the ambient temperature, can influence the position of the metal bellows (9).
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: December 10, 2013
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventors: Barbara Happe, Frank Pusch
  • Patent number: 8430121
    Abstract: A gas flow monitor is provided, in which a defined range of the closing or nominal flow can be set without engaging functional elements. Furthermore, the original closing or nominal flow can be adjusted or amended, even outside the manufacturing plant. The gas flow monitor consists of a gas-tight housing (1) which comprises an inner valve seat (5) for a closing member (9) which is displaceable within the housing (1) and is guided in a sleeve (6) in a longitudinally displaceable manner by a pin (7) and is held in the open position against the flow direction by the force of a closing spring (11). The housing (1) is connected on the inlet side to a tubular insert (13), the inner contour (14) of which determines the flow profile up to the valve seat (5).
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: April 30, 2013
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventors: Norbert Fischer, Thomas Vogt
  • Publication number: 20130048109
    Abstract: A gas regulating fitting that ensures simple manual operation is to be created. In particular, the device is to be capable of being switched both on and off in one operation. To that end, a microswitch (12) connected to an electronic control unit is arranged on the housing (1). The microswitch is operated when a tappet (10) arranged axially to the safety pilot valve (26) and the main valve (19) is manually operated. The electronic control unit thereby receives an electrical signal whereby the gas regulating fitting is activated in its switched-off state, and the gas flow flowing through the open safety pilot valve (26) is therefore ignited, whereas the holding current flowing to the thermoelectric safety pilot valve (26) is interrupted in the switched-on state of the gas regulating fitting, and the gas regulating fitting is therefore deactivated. The gas regulating fitting can be used to ignite and regulate a gas flow flowing to a burner.
    Type: Application
    Filed: May 3, 2011
    Publication date: February 28, 2013
    Applicant: Mertik Maxitrol GmbH & Co. KG
    Inventor: Barbara Happe
  • Publication number: 20130000754
    Abstract: The intention is to provide an actuator which makes it possible to change the opening time and to manually lock the supply of gas. For this purpose, the actuator consists of a housing (9) which is closed by a cover (10). A working diaphragm (8) is clamped between the housing (9) and the cover (10) and subdivides a space enclosed by the housing (9) and the cover (10) into a working pressure chamber (11) and an outlet pressure chamber (13). A lever (15) which is supported on the working diaphragm (8) and acts on a gas valve (2) via a drive plunger (16) is pivotably mounted in the housing (9). The actuator also has an adjustable pressure control valve (6) and a solenoid valve (7). When an inlet pressure line (12) is closed, the solenoid valve (7) opens a connecting channel (28) between the working pressure chamber (11) and the outlet pressure chamber (13). In contrast, in the open position, the inlet pressure line (12) is connected to the working pressure chamber (11) and to the pressure chamber (21).
    Type: Application
    Filed: March 15, 2011
    Publication date: January 3, 2013
    Applicant: Mertik Maxitrol GmbH & Co., KG
    Inventor: Detlef Bayer
  • Patent number: 7919732
    Abstract: The invention relates to a method and a circuit for igniting a gas flow in a fully automatic manner. The aim of the invention is to maintain the necessary current consumption so low that an integratable voltage source can be used. To this end, once an electronic control unit has been activated, a thermoelectric safety pilot valve (2) is opened by an electromagnet which is temporarily excited by a rush of current, is maintained in the open position by a safety pilot magnet (6) by means of a holding current provided by a voltage source (10), and the escaping gas is ignited. Once a thermoelectric couple (4) is provided for the necessary holding current, the voltage source (10) is switched off. In the event of damage, the method is automatically interrupted.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: April 5, 2011
    Assignee: Mertik Maxitrol GmbH & Co., KG
    Inventors: Jürgen Blank, Barbara Happe
  • Patent number: 7891972
    Abstract: The aim of the invention is to create a gas regulating fitting which, once a gas stove has been successfully started up, can switch the pilot burner into the off position when the main burner is in the off position, in order to maintain the power consumption of the gas stove as low as possible. The aim of the invention is also to provide the gas regulating fitting with as simple a structure as possible. To this end, the gas regulating fitting comprises a sensor (34) by which means the operating state of the main burner (33) can be detected. The sensor (34) is connected to a thermoelectric safety pilot valve (17) in such a way that, when the operating state of the main burner (33) is switched from the on position into the off position by a signal emitted from the sensor (34), the thermoelectric safety pilot valve (17) assumes the closed position thereof. The gas regulating fitting can be used to ignite and to regulate a gas flow flowing to a burner.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: February 22, 2011
    Assignee: Mertik Maxitrol GmbH & Co. KG
    Inventors: Jürgen Blank, Barbara Happe
  • Publication number: 20110039217
    Abstract: A method and a gas regulator fitting for monitoring the ignition of a gas appliance in which the danger of the accumulation of an increased amount of unburned gas in a combustion chamber before the ignition of a main burner (2) is reduced. In addition, an immediate renewed attempt to ignite the appliance is to be prevented. A sensor (21) ascertaining the operating condition of the main burner (2) is activated in such a way on the activation of a drive unit (20) forming part of the gas regulator fitting for opening a main valve (11) of the gas regulator fitting such that, if the main gas flow in the main burner (2) is not ignited within a given time, the main valve (11) is closed again also for a given time.
    Type: Application
    Filed: April 27, 2009
    Publication date: February 17, 2011
    Applicant: MERTIK MAXITROL GMBH & CO., KG
    Inventor: Barbara Happe