Patents by Inventor Claes-Goran Johansson
Claes-Goran Johansson 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: 10337161Abstract: An apparatus and a method for attenuating water pressure pulses generated during sea piling when a percussion mechanism is used, including the stage of driving at least one pile into an earth by a percussion mechanism, while along at least a part of its axial extension, the pile is surrounded by water and at least partly by a tubular outer sleeve; and at least one gas-filled space is provided between the inner periphery of the outer sleeve and the outer periphery of the pile. The apparatus includes mechanisms for providing the gas-filled space.Type: GrantFiled: June 7, 2017Date of Patent: July 2, 2019Assignee: ABB Research Ltd.Inventors: Claes-Goran Johansson, Petter Johansson, Thies Helbig
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Publication number: 20170268195Abstract: An apparatus and a method for attenuating water pressure pulses generated during sea piling when a percussion mechanism is used, including the stage of driving at least one pile into an earth by a percussion mechanism, while along at least a part of its axial extension, the pile is surrounded by water and at least partly by a tubular outer sleeve; and at least one gas-filled space is provided between the inner periphery of the outer sleeve and the outer periphery of the pile. The apparatus includes mechanisms for providing the gas-filled space.Type: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: Claes-Goran Johansson, Petter Johansson, Thies Helbig
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Patent number: 9732493Abstract: An apparatus and a method for attenuating water pressure pulses generated during sea piling when a percussion mechanism is used, including the stage of driving at least one pile into an earth by a percussion mechanism, while along at least a part of its axial extension, the pile is surrounded by water and at least partly by a tubular outer sleeve; and at least one gas-filled space is provided between the inner periphery of the outer sleeve and the outer periphery of the pile. The apparatus includes mechanisms for providing the gas-filled space.Type: GrantFiled: February 19, 2014Date of Patent: August 15, 2017Assignee: ABB Research Ltd.Inventors: Claes-Goran Johansson, Petter Johansson, Thies Helbig
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Publication number: 20140169888Abstract: An apparatus and a method for attenuating water pressure pulses generated during sea piling when a percussion mechanism is used, including the stage of driving at least one pile into an earth by a percussion mechanism, while along at least a part of its axial extension, the pile is surrounded by water and at least partly by a tubular outer sleeve; and at least one gas-filled space is provided between the inner periphery of the outer sleeve and the outer periphery of the pile. The apparatus includes mechanisms for providing the gas-filled space.Type: ApplicationFiled: February 19, 2014Publication date: June 19, 2014Inventors: Claes-Goran Johansson, Petter Johansson, Thies Helbig
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Publication number: 20120011998Abstract: The disclosure relates to a membrane pump head for a homogenizer or a high-pressure pump. The membrane pump head comprises at least one pump head enclosed in a pump housing. The membrane pump head also includes a product chamber with inlet and outlet for the product, as well as a hydraulic chamber in which a piston is disposed to operate. The product chamber and the hydraulic chamber are separated by a double membrane. The membrane is oriented at 15-75° in relation to the longitudinal direction of the piston.Type: ApplicationFiled: February 16, 2010Publication date: January 19, 2012Applicant: TETRA LAVAL HOLDINGS & FINANCE S.A.Inventors: Claes-Göran Johansson, Nils Wendestam
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Publication number: 20070240933Abstract: A sound reduction system for reducing noise from a high power combustion engine is supplied by means of a method. The sound reduction system comprises a plurality of elements and attenuating devices placed in an elongated channel. During design of the sound reduction system one makes use of a particular suitable attenuating element with a first reactive part, a second reactive part and a third reactive part. Such a module, which is less sensitive to position in the channel, cost effective to manufacture and cost effective to model, is combined with single attenuating devices. The method enables a user to meet the requirements on sound reduction and keeping construction costs down, by using an iterative step-by-step approach. Such an approach is unknown according to traditional methods. An advantage of the method is that it enables an accurate acoustic model of the complete exhaust system, not only in the low frequency area and in the upper frequency area, but also in the intermediate frequency area.Type: ApplicationFiled: December 16, 2004Publication date: October 18, 2007Applicant: Callenberg Flakt Marine ABInventors: Claes-Goran Johansson, Mats Abom
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Publication number: 20040099477Abstract: A light absorbent for hygienic spaces comprising a porous mat. The normalized flow resistance of the mat is in the interval of 0.5-2.Type: ApplicationFiled: July 2, 2003Publication date: May 27, 2004Inventors: Mats Abom, Claes-Goran Johansson
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Patent number: 6629828Abstract: The invention relates to an arrangement in a pump block. The pump block includes a plurality of pump valves each connected to a piston in a piston pump. The pump block also includes an inlet pipe which is common to all of the pump valves. The inlet pipe has a connection to each pump valve. One connection between the inlet pipe and the pump block is fixed and includes a flange fixedly screwed in the pump block, the remaining connections are movable in the longitudinal direction of the inlet pipe. The movable connections each include a flange with over-dimensioned boltholes in which a spacer is placed.Type: GrantFiled: December 28, 2001Date of Patent: October 7, 2003Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Claes-Göran Johansson, Jörgen Löfstedt
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Patent number: 6345960Abstract: An apparatus for high pressure pumping or homogenizing of liquids has a drive motor with a transmission mechanism and a pump section. The transmission mechanism includes a belt train, a gearbox and a crank mechanism which is housed in a crankcase. The pump section includes a pump block, valves, and pistons which are connected to the crank mechanism. The transmission mechanism converts the rotary movement of the drive motor into the reciprocating movement of the pump pistons. The drive motor is placed directly above the crankcase and is surrounded on two sides by partitions which are interconnected by a roof. The partitions form, together with the roof, an air channel such that the driving parts of the apparatus may be cooled in a simple and efficient manner. By use of various arrangements peripheral to the apparatus, the air may be led off or recycled after cooling and recovery of the heat.Type: GrantFiled: November 13, 2000Date of Patent: February 12, 2002Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Richard Persson, Claes-Goran Johansson
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Patent number: 6167984Abstract: A device and a method for achieving sound reduction within a frequency band in a transport system for gaseous medium, the transport system being arranged between an inlet, which is connected to a sound source, and an outlet. The transport system comprises with a plurality of interconnected channel parts (1-7) and exhibits at least one module (8, 9) comprising at least one reflection attenuator (4) with a resistive length (a2, b2) and at least one reactive attenuator (3) with a reactive length (a1, a3, b1, b3). The resistive length is brought to constitute a quarter of a wavelength of the center frequency of the frequency band and the reactive length is brought to constitute a quarter of a wavelength of a frequency between, respectively, the lower and upper limit frequencies of the frequency band.Type: GrantFiled: August 13, 1999Date of Patent: January 2, 2001Assignee: ABB Flakt ABInventors: Claes-Göran Johansson, {umlaut over (O)}rian Götmalm
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Patent number: 5563763Abstract: A capacitor for temporary storage of electrical energy comprising at least two capacitor elements (2) composed of electrodes (5) which are separated by one or more dielectrics (6), and especially a power capacitor for high voltage. When the capacitor is being loaded, electrostatic forces give rise to mechanical forces between the electrodes in the capacitor. The forces give rise to vibrations which radiate as sound from the surface of the capacitor. Between, or adjacent to, packages (10) of compressed capacitor elements (2), there are placed one or more active or passive spring elements (11), which are adapted to change the natural frequencies of the capacitor. In this way, the oscillation resistance of the capacitor may be changed at the frequency ranges where the force is acting. The vibrations in the surface layer of the capacitor decrease, resulting in reduced sound radiation from the capacitor.Type: GrantFiled: June 13, 1995Date of Patent: October 8, 1996Assignee: Asea Brown Boveri ABInventors: Claes-Goran Johansson, Olle Winroth
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Patent number: D511067Type: GrantFiled: February 10, 2004Date of Patent: November 1, 2005Assignee: Tetra Laval Holdings & Finance SAInventor: Claes-Göran Johansson
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Patent number: D559037Type: GrantFiled: August 1, 2006Date of Patent: January 8, 2008Assignee: Tetra Laval Holdings & Finance SAInventor: Claes-Göran Johansson
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Patent number: D423871Type: GrantFiled: September 18, 1998Date of Patent: May 2, 2000Assignee: Tetra Laval Holdings & Finance S.A.Inventors: Richard Persson, Claes-Goran Johansson