Patents by Inventor Pasi Ahonen
Pasi Ahonen 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: 11383957Abstract: A method and an elevator for moving an elevator car to a landing floor in case of a predefined event related to a main electrical power supply of an elevator are disclosed. The method includes charging energy from the main electrical power supply into an external electrical energy storage prior to detecting the predefined event related to the main electrical power supply, controlling an operation of an electric motor for moving the elevator car with an electrical drive to decelerate the elevator car and to produce regenerative electrical energy, selectively utilizing said energy charged from the main electrical power supply into the external electrical energy storage and said produced regenerative electrical energy to maintain an elevator brake in deactivated state.Type: GrantFiled: October 19, 2017Date of Patent: July 12, 2022Assignee: KONE CORPORATIONInventors: Ari Kattainen, Pasi Raassina, Juhamatti Nikander, Ari-Pekka Lahtinen, Pasi Rinnesaari, Pasi Ahonen
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Publication number: 20210078831Abstract: A passenger/goods conveyor includes at least one transport entity connected with at least one mover, which co-acts together with at least one stator beam defining a movement trajectory for the transport entity. The at least one mover and the stator beam form a linear motor, the stator beam carrying on at least two opposite sides stator faces with stator poles which again co-act with corresponding mover counter faces including mover units facing the stator poles. The mover units are arranged successively in a running direction of the mover, whereby between the two stator faces and the corresponding mover counter faces air gaps are formed, whereby each mover unit includes electro-magnetic components configured to co-act with the stator poles to provide a propulsion force to accelerate and move the mover along the stator beam as well as an attraction force between the stator faces and counter faces to adjust both air gaps.Type: ApplicationFiled: September 3, 2020Publication date: March 18, 2021Applicant: KONE CorporationInventors: Pasi Raassina, Teemu Majasalmi, Pasi Ahonen
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Publication number: 20180134519Abstract: A method and an elevator for moving an elevator car to a landing floor in case of a predefined event related to a main electrical power supply of an elevator are disclosed. The method includes charging energy from the main electrical power supply into an external electrical energy storage prior to detecting the predefined event related to the main electrical power supply, controlling an operation of an electric motor for moving the elevator car with an electrical drive to decelerate the elevator car and to produce regenerative electrical energy, selectively utilizing said energy charged from the main electrical power supply into the external electrical energy storage and said produced regenerative electrical energy to maintain an elevator brake in deactivated state.Type: ApplicationFiled: October 19, 2017Publication date: May 17, 2018Applicant: KONE CorporationInventors: Ari KATTAINEN, Pasi RAASSINA, Juhamatti NIKANDER, Ari-Pekka LAHTINEN, Pasi RINNESAARI, Pasi AHONEN
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Patent number: 7627755Abstract: A method of authenticating candidate members 1 wishing to participate in an IP multicast via a communication network, where data sent as part of the multicast is to be encrypted using a Logical Key Hierarchy based scheme requiring that each candidate member submit a public key to a group controller. The method comprises, at the group controller 1, verifying that the public key received from each candidate member 1 is owned by that member and that it is associated with the IP address of that candidate member 1 by inspecting an interface ID part of the IP address.Type: GrantFiled: September 13, 2002Date of Patent: December 1, 2009Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Pasi Ahonen, Uusitalo Iikka, Mantyla Vesa-Matti
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Patent number: 7382881Abstract: A method of facilitating the lawful interception of an IP session between two or more terminals 12,13, wherein session uses encryption to secure traffic. The method includes storing a key allocated to at least one of terminals 12,13 or to at least one of the subscribers using one of the terminals 12,13, at the terminal 12,13 and at a node 5,8 within a network 1,6 through which session is conducted, or a node coupled to that network. Prior to the creation of session, a seed value is exchanged between the terminal 12,13 at which the key is stored and node 5,8. The key and the seed value are used at both the terminal 12,13 and the node 5,8 to generate a pre-master key. The pre-master key becomes known to each of the terminals 12,13 involved in the IP session and to the network node 5,8. The pre-master key is used, directly or indirectly, to encrypt and decrypt traffic associated with IP session.Type: GrantFiled: December 6, 2002Date of Patent: June 3, 2008Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Ilkka Uusitalo, Pasi Ahonen, Rolf Blom, Boman Krister, Mats Näslund
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Publication number: 20060168446Abstract: A method of authenticating candidate members 1 wishing to participate in an IP multicast via a communication network, where data sent as part of the multicast is to be encrypted using a Logical Key Hierarchy based scheme requiring that each candidate member submit a public key to a group controller. The method comprises, at the group controller 1, verifying that the public key received from each candidate member 1 is owned by that member and that it is associated with the IP address of that candidate member 1 by inspecting an interfaceID part of the IP address.Type: ApplicationFiled: September 13, 2002Publication date: July 27, 2006Inventors: Pasi Ahonen, Uusitalo Ilkka, Mantyla Vesa-Matti
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Publication number: 20060168210Abstract: A method of facilitating the legal interception of IP connections, where two or more terminals can communicate with each other over the Internet using IPSec to provide security. The method comprises allocating to each terminal T1,T2 a public/private key pair for use in negotiating IKE and IPSec Security Associations (SAs) with other terminals. Where a terminal T1,T2 is coupled to the Internet via an access network 1,2, the private key of that terminal is stored within the access network at an interception server S1,S2. When an IP connection is initiated to or from a terminal T1,T2 on which a legal interception order has been placed, the private key stored for that terminal T1,T2 within the access network 1,2 is used to intercept the connection.Type: ApplicationFiled: March 28, 2002Publication date: July 27, 2006Inventors: Pasi Ahonen, Harri Toivanen
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Publication number: 20060118257Abstract: A paper web (W) is dried in a forward dryer section (D) of a paper machine in downward open drying groups (G1 . . . G6) that apply single-wire draw. Then, in a finishing section the web (W) is surface-sized in a surface-sizing unit (20) and dried mainly by contact-free drying: partly by airbone web-dryers (31, 32, 34, 36) or by impingement drying. The power of the airbone web-drying/impingement drying is regulated on both sides of the web (W) such that the tendency of curling created in the web (W) in the forward dryer section (D) can be controlled.Type: ApplicationFiled: May 5, 2004Publication date: June 8, 2006Inventors: Pasi Rajala, Robert Havukainen, Ville Korhonen, Seppo Elijoki, Pasi Ahonen, Kari Juppi, Pasi Kekko, Martti Salminen
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Publication number: 20060027348Abstract: A web of paper or paperboard is manufactured by first forming a base web that is dried on the press section of papermaking machine. The base web is further dried on the dryer section of the papermaking machine and a base web speed differential, or draw, is set between the press section and the first dryer cylinder group of the dryer section, whereupon at least one surface of the web is surface sized. The draw is set to 3% maximum, and a surface size furnish is applied having a solids content of at least 15% of the total amount of size components and liquid in the furnish.Type: ApplicationFiled: October 8, 2003Publication date: February 9, 2006Inventors: Juha Lipponen, Johan Gron, Erkki Ilmoniemi, Kaarlo Lackman, Pekka Pakarinen, Kari Juppi, Pasi Ahonen
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Publication number: 20050063544Abstract: A method of facilitating the lawful interception of an IP session between two or more terminals 12,13, wherein said session uses encryption to secure traffic. The method comprises storing a key allocated to at least one of said terminals 12,13 or to at least one of the subscribers using one of the terminals 12,13, at the terminal 12,13 and at a node 5,8 within a network 1,6 through which said session is conducted, or a node coupled to that network. Prior to the creation of said session, a seed value is exchanged between the terminal 12,13 at which the key is stored and said node 5,8. The key and the seed value are used at both the terminal 12,13 and the node 5,8 to generate a pre-master key. The pre-master key becomes known to each of the terminals 12,13 involved in the IP session and to the network node 5,8. The pre-master key is used, directly or indirectly, to encrypt and decrypt traffic associated with said IP session.Type: ApplicationFiled: December 6, 2002Publication date: March 24, 2005Inventors: Ilkka Uusitalo, Pasi Ahonen, Rolf Blom, Boman Krister, Mats Naslund
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Publication number: 20040158716Abstract: A method of facilitating the authentication of IP data transfer between a mobile wireless terminal 4 and a network node 2. A computer is used to generate a public-private key pair, whilst a certificate guaranteeing that the key pair is associated with a unique identifier allocated to a subscriber is obtained from a CA 8. The key pair and the certificate are stored on a subscriber identity module (SIM) card 9 which is then coupled to the mobile wireless terminal 4 so that processing means of the terminal 4 can access the key pair and the certificate for use in authenticating itself to a remote node 2. The terminal is authorised to access services of the node 2 on the basis of the unique identifier.Type: ApplicationFiled: January 20, 2004Publication date: August 12, 2004Inventors: Esa Turtiainen, Jari Arkko, Pasi Ahonen
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Patent number: 6712931Abstract: A method for manufacturing a paper or board web in which stock is fed from a headbox (100) to a wire section (200), in which water is removed from the web (W) and from which the web (W) is passed to a press section (300), in which water is pressed out of the web (W) and after which the web (W) is dried in a dryer section (400) and reeled by means of a reel-up (800). According to the invention, additives, fillers and/or fines are fed into the stock of the surface layers of the web (W) in order to reduce the pore size distribution of the web in the surface layers so as to substantially correspond to a precoated web. The invention also relates to a paper or board machine which is characterized in that it is structured for enabling the feeding of additives, fillers and/or fines into a fiber stock such that an uncoated web substantially corresponds in its properties to a precoated web.Type: GrantFiled: May 12, 2000Date of Patent: March 30, 2004Assignee: Metso Paper, Inc.Inventors: Johan Grön, Pasi Ahonen, Juha Kinnunen, Pentti Rautiainen, Mari Taipale
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Patent number: 6706150Abstract: An air impingement arrangement and method for compensating for the curling tendency of a paper or board web which is being treated. Air impingement is disposed in connection with a paper or board process or with its finishing process and extends across the width of the web (10) running in the vicinity thereof, forming a contact-free web treatment zone, in which process the web is dried in at least one dryer unit (3, 5, 7) that applies single-wire draw. In accordance with the invention, air impingement directed at the web (10) is produced by the air impingement arrangement (20) in the web treatment zone, said air impingement including, one following after the other, at least one hot blowing with air and at least one cold blowing with air. The invention also relates to a paper or board machine provided with this kind of air impingement arrangement.Type: GrantFiled: March 13, 2002Date of Patent: March 16, 2004Assignee: Metso Paper, Inc.Inventors: Pasi Ahonen, Harri Kiiskinen, Oleg Timofeev
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Patent number: 6413371Abstract: The invention concerns a method for manufacture of paper, most appropriately for porous paper for color powder printing. In the method paper is manufactured by means of a paper machine. In the method the paper stock is fed out of the headbox (100) into the wire part (200), in which wire part (200) water is drained out of the paper web in both directions. In the method the paper web (W) is passed from the wire part (200) into the press section (300) in order to press water out of the paper web (W), and after the press section (300), the paper web (W) is dried in the dryer section (400) and coated/pigmented in the coating section (500), dried in an after-dryer section (600) and calendered in a calender (600), and reeled in a reel-up (800).Type: GrantFiled: December 8, 2000Date of Patent: July 2, 2002Assignee: Metso Paper, Inc.Inventors: Pasi Ahonen, Juha S. Kinnunen, Mari Taipale, Pirkko-Leena Aarnikoivu
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Publication number: 20010035273Abstract: A method and arrangement for drying a paper to be surface-treated, in particular fine paper, in an after-dryer in a paper machine. The paper web is first dried in a forward dryer section of the paper machine by one or more groups with single-wire draw that are open downward on support of a drying wire, the paper web is then finished in a finishing section, e.g., surface-sized or coated, and thereafter, the paper web is dried by an upwardly open inverted group with single-wire draw. In the inverted group with single-wire draw, the tendency of curling formed in the paper web in the forward dryer section can be substantially eliminated and/or compensated for.Type: ApplicationFiled: June 28, 2001Publication date: November 1, 2001Inventors: Antti Kuhasalo, Pasi Ahonen
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Patent number: 6280576Abstract: A method and arrangement for drying a paper to be surface-treated, in particular fine paper, in an after-dryer in a paper machine. The paper web is first dried in a forward dryer section of the paper machine by one or more groups with single-wire draw that are open downward on support of a drying wire, the paper web is then finished in a finishing section, e.g., surface-sized or coated, and thereafter, the paper web is dried by an upwardly open inverted group with single-wire draw. In the inverted group with single-wire draw, the tendency of curling formed in the paper web in the forward dryer section can be substantially eliminated and/or compensated for.Type: GrantFiled: July 31, 1997Date of Patent: August 28, 2001Assignee: Valmet CorporationInventors: Antti Kuhasalo, Pasi Ahonen
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Patent number: 6061927Abstract: A method in a dryer section of a paper or board machine for controlling curl of paper, in which steam treatment and/or moistening of the paper web is/are employed. The operations carried out in order to control the curl of the paper web are carried out in a number of stages when the web temperature is, during at least one stage, lower than 85.degree. C., preferably lower than 75.degree. C., and when the dry solids content of the web is in the range of K1-K2, wherein K1 is the ultimate dry solids content of the web -7% and K2 is the ultimate dry solids content +3%.Type: GrantFiled: April 6, 1999Date of Patent: May 16, 2000Assignee: Valmet CorporationInventors: Vesa Ijas, Kari Juppi, Pasi Ahonen, Jaakko Kallioniemi
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Patent number: 6001421Abstract: A dry end of a paper machine and a method for drying paper in which a paper web to be dried is passed from a press section of the paper machine into a forward dryer section including only single-wire groups with normal single-wire draw. The web is dried from the side of its bottom face in the dryer groups in the forward dryer section. From the forward dryer section, the web is passed into a finishing section in which the web is coated/surface-sized by a coating/surface-sizing device and then dried in an after-dryer by passing through at least one dryer group that applies a normal single-wire draw. Thereafter, the web is calendered and passed to a reeling station. Curling of the web is controlled by the operation or construction of components and/or by assemblies and combinations formed out of these components provided in connection with the forward dryer section and/or the finishing section.Type: GrantFiled: December 3, 1997Date of Patent: December 14, 1999Assignee: Valmet CorporationInventors: Pasi Ahonen, Jaakko Kallioniemi, Juha Kaihovirta, Ville Korhonen, Matti Luontama
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Patent number: 5983523Abstract: A method in a dryer section of a paper or board machine for controlling curl of paper, in which steam treatment and/or moistening of the paper web is/are employed. The operations carried out in order to control the curl of the paper web are carried out in a number of stages when the web temperature is, during at least one stage, lower than 85.degree. C., preferably lower than 75.degree. C., and when the dry solids content of the web is in the range of K1-K2, wherein K1 is the ultimate dry solids content of the web -7% and K2 is the ultimate dry solids content +3%. The paper or board machine includes at least a headbox, a former, a press, and a dryer section in steam boxes or moistening devices are employed for control of the curl. There are at least two curl regulation devices to enable regulation of the curl in a number of stages, and/or the curl regulation devices are arranged to operate in an area in which the web temperature is, during at least one stage lower than 85.degree. C., preferably lower than 75.Type: GrantFiled: March 27, 1998Date of Patent: November 16, 1999Assignee: Valmet CorporationInventors: Vesa Ijas, Karj Juppi, Pasi Ahonen, Jaakko Kallioniemi
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Patent number: 5968590Abstract: An after-dryer and method for drying a surface-treated paper web in an after-dryer of a paper machine in which the web is first finished in a finishing section, i.e., surface-sized or coated, by a finishing device and then dried. In the after-dryer, the paper web is dried in at least one dryer group that makes use of single-wire draw and at the same time, the paper web is dried by an impingement-drying equipment arranged in connection with at least one cylinder or roll in the single-wire dryer group.Type: GrantFiled: September 17, 1997Date of Patent: October 19, 1999Assignee: Valmet CorporationInventors: Pasi Ahonen, Juha Kaihovirta