Patents Assigned to WiWa Wilhelm Wagner GmbH & Co. KG
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Patent number: 10821461Abstract: A method for controlling a pump system as well as to a pump system with multi-component material being dispensed under pressure using a mixer and a spray gun of the pump system, component material being pumped using at least two pumps of the pump system, said component material being stored using liquid tanks of the pump system each allocated to the pumps, said component material being dosed using dosage valves of the pump system each allocated to the pumps, said pump system being controlled by means of a control unit of the pump system, said dosage valves each being regulated using an electric regulating device of the control unit each allocated to the pump, a mixing ratio of the component materials being regulated using a control device of the control unit, said regulating devices being regulated by means of the control device.Type: GrantFiled: September 20, 2018Date of Patent: November 3, 2020Assignee: WIWA WILHELM WAGNER GMBH & CO. KGInventors: Peter Turczak, Dirk Scherer
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Patent number: 10422334Abstract: The invention relates to a method for controlling a pump system and to a pump system (34) having a pump unit (44) for dispensing multi-component material under pressure by means of a spray gun, the pump unit comprising a pump device (12), a mixer (13) and a spray gun (14), the pump device having at least two pumps (16, 17) for pumping component material and associated liquid tanks (18, 19) for storing component material, the pump device having an operating means (23) by means of which the pump device is controlled, wherein the pump unit comprises at least one other pump device (35), the pump system having a control device (24), the control device and the operating means (23, 40) together forming a control unit (41), the pump unit being controlled by means of the control unit.Type: GrantFiled: March 25, 2015Date of Patent: September 24, 2019Assignee: WIWA WILHELM WAGNER GMBH & CO. KGInventor: Peter Turczak
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Publication number: 20170152848Abstract: The invention relates to a method for controlling a pump system and to a pump system (34) having a pump unit (44) for dispensing multi-component material under pressure by means of a spray gun, the pump unit comprising a pump device (12), a mixer (13) and a spray gun (14), the pump device having at least two pumps (16, 17) for pumping component material and associated liquid tanks (18, 19) for storing component material, the pump device having an operating means (23) by means of which the pump device is controlled, wherein the pump unit comprises at least one other pump device (35), the pump system having a control device (24), the control device and the operating means (23, 40) together forming a control unit (41), the pump unit being controlled by means of the control unit.Type: ApplicationFiled: March 25, 2015Publication date: June 1, 2017Applicant: WIWA WILHELM WAGNER GMBH & CO. KGInventor: Peter TURCZAK
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Patent number: 8991729Abstract: A valve for a spray gun sprays free-flowing media with the use of compressed air. The valve includes a valve housing arrangement and a valve element, wherein the valve element is disposed at least partially in the valve housing arrangement, there being formed in the valve element a mixing chamber for mixing and discharging at least one spray medium with compressed air. The valve element and the valve housing arrangement are constituted such that the valve element can be moved relative to the valve housing arrangement from a first position into a second position, and that at least one spray medium can be fed to the mixing chamber in the first position and compressed air can be fed to the same via the valve housing arrangement in the second position, wherein the valve element is disposed on the valve housing arrangement so as to be rotatable from the first position into the second position.Type: GrantFiled: January 19, 2012Date of Patent: March 31, 2015Assignee: Wiwa Wilhelm Wagner GmbH & Co. KGInventor: Dirk Scherer
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Publication number: 20120321285Abstract: The invention relates to a heat exchanger (10) for heating flowable media, in particular highly viscous materials, coating materials, or the like, comprising a profile body (11, 12) having at least one flow channel segment (13, 14, 15, 16) of a flow channel of the heat exchanger, and a heating unit disposed in the profile body, wherein the heating unit comprises at least two electric heating elements (22, 24). A first heating element (22) is disposed in a heating element receptacle (23) formed in the profile body, and a second heating element (24) is disposed in a sleeve element (17) of the heating unit, wherein the sleeve element is disposed in the flow channel segment formed in the profile body, such that the heating elements are sealed against the flow channel.Type: ApplicationFiled: August 20, 2010Publication date: December 20, 2012Applicant: WIWA WILHELM WAGNER GMBH & CO.KGInventor: Dirk Scherer
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Patent number: 6634570Abstract: A spray gun for spraying of abrasive media includes a valve operable by a nozzle needle. The valve is arranged in a gun head and has a nozzle opening. The spray gun has an operating and return device for the nozzle needle. In order for the spray gun to be self-cleaning and to be able to process several components with abrasive material, the valve includes a nozzle channel, which ends in the nozzle opening. The nozzle needle is movably supported in the nozzle channel. At least one bore laterally enters the nozzle channel to supply the media. The bore can be closed off by the nozzle needle, which has an outer diameter almost equal to an inner diameter of the nozzle channel. The length of the nozzle needle in chosen so that when the nozzle needle is in a resting state, the needle extends at least to the nozzle opening of the spray gun.Type: GrantFiled: September 26, 2001Date of Patent: October 21, 2003Assignee: WiWa Wilhelm Wagner GmbH & Co. KGInventor: Oswald Scherer
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Patent number: 6315442Abstract: Instead of a discontinuous mixing process for mixing two or more flowable materials for a paint-spraying plant, a continuous mixing and conveying process is provided. Use is made of individual conveyor pumps driven individually by hydraulic adjusting units in the form of double-acting hydraulic cylinders. Control is exerted by an electronic control device controlling a proportional governor at hydraulic connecting lines between the adjusting units to adjust the stroke of pistons of the adjusting units and thus the ratio of the flowable material conveyed.Type: GrantFiled: July 7, 2000Date of Patent: November 13, 2001Assignee: WiWa Wilhelm Wagner GmbH & Co. KGInventor: Rudolf Jerkel
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Patent number: 6161956Abstract: Instead of a discontinuous mixing process for mixing two or more flowable materials for a paint-spraying plant, a continuous mixing and conveying process is provided. Use is made of individual conveyor pumps driven individually by hydraulic adjusting units in the form of double-acting hydraulic cylinders. Control is exerted by an electronic control device controlling a proportional governor at hydraulic connecting lines between the adjusting units to adjust the stroke of pistons of the adjusting units and thus the ratio of the flowable material conveyed.Type: GrantFiled: September 16, 1998Date of Patent: December 19, 2000Assignee: WiWa Wilhelm Wagner GmbH & Co. KGInventor: Rudolf Jerkel
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Patent number: 6123008Abstract: A compact transportable compressed-air piston engine for paint-spraying devices, dosing pumps, grease guns or the like, makes it possible, without much effort, to carry out various length working strokes of a working piston. A compact engine is obtained by mounting the control in/on the cylinder head or in/on the cylinder bottom with axes extending transversely with respect to a main axis so that stroke changes can be achieved solely by the working piston contacting the valve piston rods of switch valves. In addition, return springs are not needed in the switch valves, which are required for reversing and are operated by the working piston.Type: GrantFiled: June 17, 1998Date of Patent: September 26, 2000Assignee: Wiwa Wilhelm Wagner GmbH & Co. KgInventor: Oswald Scherer
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Patent number: 4721439Abstract: A device for a drive for pumps with a constant holding and preset operating pressure, has, in order that it can be driven by a commercially available electric motor which can continue running with a closed spray gun, a differential gear with an input shaft (15) for the connection of the motor and two output shafts (8, 30) for connection to the pump and a series connected hydraulic pump and adjustable throttle valve.Type: GrantFiled: May 15, 1986Date of Patent: January 26, 1988Assignee: Wiwa Wilhelm Wagner GmbH & Co. KGInventor: Guenter Leinweber