Patents by Inventor Leo Hatjasalo

Leo Hatjasalo 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).

  • Publication number: 20240058913
    Abstract: The invention relates to machining a workpiece. In the inventive a pair of a workpiece and a tool materials are selected, and the workpiece material machined with the tool. At the same time with the machining there is the step of providing an external, charged gaseous medium to a working zone, workpiece and tool contacts. The formed charged polarity of the gaseous medium depends on the pair of the selected workpiece and the tool materials to harmonize their generated internal thermal energy and electric charge, enthalpy levels and electrochemical reactions in the working zone, workpiece and tool during the machining.
    Type: Application
    Filed: January 7, 2022
    Publication date: February 22, 2024
    Inventors: Kari RINKO, Leo HATJASALO
  • Publication number: 20230265991
    Abstract: A lighting apparatus (102) for hazardous environments, comprising at least one substantially point-like source of light (4), and a housing structure for said at least one substantially point-like source of light, defining at least a triple barrier protective encapsulation (1, 3, 7) to seal and insulate said at least one source of light from the environment, wherein said triple barrier protective encapsulation is at least partially optically transmissive to enable light propagation from said at least one source of light to the environment at predefined wavelengths.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 24, 2023
    Inventors: Kari Rinko, Leo Hatjasalo
  • Patent number: 11060678
    Abstract: A luminaire incorporating a plurality of lighting module units, each module comprising a plurality of preferably independently controllable light sources, optionally LEDs and/or laser lamps, each light source having preferably dedicated lens structure associated therewith, wherein the modules are individually configurable and further wherein the light output characteristics of each module of said plurality are individually controllable to yield a target overall distribution of output light from the luminaire. Yet, it is presented a lighting apparatus comprising a single point-like light source, preferably a LED, and a transmissive lens structure optically connected to said light source defining a plurality of optically functional, mutually different segments dedicated for controlling the light, e.g. distribution and direction, originally emitted by said single light source. A corresponding transmissive element such as a lens is presented.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: July 13, 2021
    Assignee: OY MTG-MELTRON LTD.
    Inventors: Kari Rinko, Leo Hatjasalo, Jaana Jahkonen
  • Publication number: 20210033264
    Abstract: A lighting apparatus for hazardous environments, comprising at least one substantially point-like source of light, and a housing structure for said at least one substantially point-like source of light, defining at least a triple barrier protective encapsulation to seal and insulate said at least one source of light from the environment, wherein said triple barrier protective encapsulation is at least partially optically transmissive to enable light propagation from said at least one source of light to the environment at predefined wavelengths.
    Type: Application
    Filed: October 9, 2020
    Publication date: February 4, 2021
    Inventors: Kari Rinko, Leo Hatjasalo
  • Publication number: 20200154549
    Abstract: A luminaire incorporating a plurality of lighting module units, each module comprising a plurality of preferably independently controllable light sources, optionally LEDs and/or laser lamps, each light source having preferably dedicated lens structure associated therewith, wherein the modules are individually configurable and further wherein the light output characteristics of each module of said plurality are individually controllable to yield a target overall distribution of output light from the luminaire. Yet, it is presented a lighting apparatus comprising a single point-like light source, preferably a LED, and a transmissive lens structure optically connected to said light source defining a plurality of optically functional, mutually different segments dedicated for controlling the light, e.g. distribution and direction, originally emitted by said single light source. A corresponding transmissive element such as a lens is presented.
    Type: Application
    Filed: January 17, 2020
    Publication date: May 14, 2020
    Applicant: Oy MTG-Meltron Ltd
    Inventors: Kari Rinko, Leo Hatjasalo, Jaana Jahkonen
  • Patent number: 10561000
    Abstract: A luminaire incorporating a plurality of lighting module units, each module comprising a plurality of preferably independently controllable light sources, optionally LEDs and/or laser lamps, each light source having preferably dedicated lens structure associated therewith, wherein the modules are individually configurable and further wherein the light output characteristics of each module of said plurality are individually controllable to yield a target overall distribution of output light from the luminaire. Yet, it is presented a lighting apparatus comprising a single point-like light source, preferably a LED, and a transmissive lens structure optically connected to said light source defining a plurality of optically functional, mutually different segments dedicated for controlling the light, e.g. distribution and direction, originally emitted by said single light source. A corresponding transmissive element such as a lens is presented.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: February 11, 2020
    Assignee: Oy MTG-Meltron Ltd
    Inventors: Kari Rinko, Leo Hatjasalo, Jaana Jahkonen
  • Publication number: 20180146531
    Abstract: “A luminaire incorporating a plurality of lighting module units, each module comprising a plurality of preferably independently controllable light sources, optionally LEDs and/or laser lamps, each light source having preferably dedicated lens structure associated therewith, wherein the modules are individually configurable and further wherein the light output characteristics of each module of said plurality are individually controllable to yield a target overall distribution of output light from the luminaire. Yet, it is presented a lighting apparatus comprising a single point-like light source, preferably a LED, and a transmissive lens structure optically connected to said light source defining a plurality of optically functional, mutually different segments dedicated for controlling the light, e.g. distribution and direction, originally emitted by said single light source. A corresponding transmissive element such as a lens is presented.
    Type: Application
    Filed: May 2, 2016
    Publication date: May 24, 2018
    Applicant: Oy MTG-Meltron Ltd
    Inventors: Kari Rinko, Leo Hatjasalo, Jaana Jahkonen
  • Patent number: 9878499
    Abstract: The invention relates to an elastic composite structure, which is intended for use as a flexible, pliable and thin film structure in the manufacture of a 2- or 3-dimensional product, particularly for providing mechanical protection against cutting, puncturing and/or the like. The composite structure comprises firstly an elastomer system (1), which is constituted by at least one PUR- (polyurethane resin), PUD- (polyurethane dispersion), SI- (silicone) based elastomer material and/or the like, and secondly by a mechanically durable reinforcer system (2), such as a fabric, weave or knit structure (2a) made from one or more flexible hybrid yarns, an oriented flake reinforcement structure (2c) made from laminated flakes (y), and/or the like. The invention relates also to an elastic composite structure, which is intended for the above application and which comprises a reinforcement system (2) for reinforcing the same mechanically against cutting, puncturing and/or the like.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: January 30, 2018
    Assignee: OY OMS OPTOMEDICAL SYSTEMS LTD
    Inventors: Leo Hatjasalo, Kari Rinko
  • Publication number: 20170336055
    Abstract: A lighting apparatus for hazardous environments, comprising at least one substantially point-like source of light, and a housing structure for said at least one substantially point-like source of light, defining at least a triple barrier protective encapsulation to seal and insulate said at least one source of light from the environment, wherein said triple barrier protective encapsulation is at least partially optically transmissive to enable light propagation from said at least one source of light to the environment at predefined wavelengths.
    Type: Application
    Filed: October 23, 2015
    Publication date: November 23, 2017
    Applicant: Oy MTG-Meltron Ltd
    Inventors: Kari Rinko, Leo Hatjasalo
  • Patent number: 7563011
    Abstract: The invention relates to a light panel, comprising a light source (1) and a panel element (2). The panel element is manufactured from a substantially transparent material for transmitting light thereby. The panel element (2) is further configured as a waveguide panel, inside which the light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system. An outcoupling system (2u), such as a grating structure or the like, is adapted to cover the entire panel element (2) as far as its light surface (2a) is concerned, such that divergent recesses and/or grooves of various sizes and/or shapes are used to produce divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, having the filing factor, shape, profile and/or size thereof optimized in such a way that the diffraction efficiency is a function of place.
    Type: Grant
    Filed: June 17, 2003
    Date of Patent: July 21, 2009
    Assignee: Oy Modilis Ltd
    Inventors: Leo Hatjasalo, Kari Rinko
  • Publication number: 20080020664
    Abstract: The invention relates to an elastic composite structure, which is intended for use as a flexible, pliable and thin film structure in the manufacture of a 2- or 3-dimensional product, particularly for providing mechanical protection against cutting, puncturing and/or the like. The composite structure comprises firstly an elastomer system (1), which is constituted by at least one PUR- (polyurethane resin), PUD- (polyurethane dispersion), SI- (silicone) based elastomer material and/or the like, and secondly by a mechanically durable reinforcer system (2), such as a fabric, weave or knit structure (2a) made from one or more flexible hybrid yarns, an oriented flake reinforcement structure (2c) made from laminated flakes (y), and/or the like. The invention relates also to an elastic composite structure, which is intended for the above application and which comprises a reinforcement system (2) for reinforcing the same mechanically against cutting, puncturing and/or the like.
    Type: Application
    Filed: November 29, 2006
    Publication date: January 24, 2008
    Applicant: OY OMS OPTOMEDICAL SYSTEMS LTD
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 7307786
    Abstract: A beam shaper intended for use in connection with a quasi-monochromatic light source and which is fabricated from a substantially transparent material as a transmission element guiding the propagation of light for rounding, making elliptical, collimating, diverging, converging and/or for the like application of a light beam/beams. The beam shaper has its transmission element guiding the light beam/beams provided with a structure which at least partially consists of binary, surface relief type of diffractive patterns, having local granting periods thereof optimized with respect to longitudinal and transverse directions, as well as with respect to an optical axis, essentially in accordance with the Bragg diffraction geaometry for providing a maximum diffraction efficiency.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: December 11, 2007
    Assignee: Oy Modines Ltd
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 7153789
    Abstract: An elastic composite structure including an elastomer system comprising at least one of a polyurethane resin, a polyurethane dispersion, or a silicone-based elastomer material. A mechanically durable reinforcer system includes a fabric, weave or knit structure including a flexible hybrid yarn including at least elastic polymer fibers, wherein the fabric, weave or knit structure is at least partially precoated/impregnated with an elastic and soft elastomer matrix to form a surface layer of the composite structure.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: December 26, 2006
    Assignee: Oy Oms Optomedical Systems Ltd
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 6890475
    Abstract: The invention relates to a method for manufacturing a thin-walled article, wherein a single- or multi-component, essentially polymer-based material (1), such as plastics, elastomers, and/or the like, is sprayed in an elecrical field (E) in an electrically charged state. The thin-walled article is manufactured in the electrical field (E) by spraying (II) an electrically charged material into the contact with a mould (2) set at an electric potential, after which spraying cycle (II) the article is, at least in terms of its appearance, immediately a finished product after its demoulding/releasing from the mould (2). The invention relates also to an apparatus operating in accordance with the method.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: May 10, 2005
    Assignee: Oy OMS Optomedical Systems Ltd.
    Inventors: Leo Hatjasalo, Jarkko Valtanen
  • Publication number: 20040156182
    Abstract: The invention relates to a light panel, comprising a light source (1) and a panel element (2). The panel element is manufactured from a substantially transparent material for transmitting light thereby. The panel element (2) is further configured as a waveguide panel, inside which the light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system. An outcoupling system (2u), such as a grating structure or the like, is adapted to cover the entire panel element (2) as far as its light surface (2a) is concerned, such that divergent recesses and/or grooves of various sizes and/or shapes are used to produce divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, having the filing factor, shape, profile and/or size thereof optimized in such a way that the diffraction efficiency is a function of place.
    Type: Application
    Filed: June 17, 2003
    Publication date: August 12, 2004
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 6773126
    Abstract: A light panel that includes a light source and a panel element operatively connected to the light source. The panel element includes a substantially transparent light transmitting material and is operative as a waveguide panel inside which light beams received from the light source propagate with total reflection. A diffractive outcoupling system is arranged on the panel element over a light surface of the panel element and is operative to outcouple the light beams from inside the panel element. The diffractive outcoupling system includes a plurality of local grating elements. The local grating elements have a plurality configurations and are optimized such that a diffraction efficiency is a function of location.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: August 10, 2004
    Assignee: Oy Modilis Ltd.
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 6759965
    Abstract: The invention relates to a light indicator, comprising an indicator element (2) illuminable by a light source (1). The indicator element is manufactured from a substantially transparent material provided with an informative indicator pattern. The indicator element (2) is designed as a waveguide panel, wherein light beams propagate with total reflection and get outcoupled therefrom with a diffractive outcoupling system (2u), such as a grating structure or the like, which is configured as an indcator pattern, for producing an indicator pattern (2a) activable in the indicator element (2) by the action of light, such that divergent recesses and/or grooves of various sizes and/or shape constitute divergent local gratings of various sizes and/or shapes, such as multi-shaped and/or binary pixels and/or units, the filling factor, shape, profile and/or size thereof being optimized in such a way that the difraction efficiency is a function of place.
    Type: Grant
    Filed: November 28, 2001
    Date of Patent: July 6, 2004
    Assignee: Oy ICS Intelligent Control Systems LTD
    Inventors: Leo Hatjasalo, Kari Rinko
  • Publication number: 20040057114
    Abstract: The invention relates to a beam shaper, which is intended for use in connection with a quasi-monochromatic light source (1) and which is fabricatedf rom a substantially transparent material as a transmission element (3) guiding the propagation of light for rounding, making elliptical, collimating, diverging, converging and/or for the like application of a light beam/beams (R). The beam shaper has its transmission element (3′) guiding the light beam/beams (R) provided with a strucutre which at least partially consists of binary, surface relief type of diffractive patterns, having local grating periods thereof optimized with respect to longitudinal and transverse directions, as well as with respect to an optical axis, essentially in accordance with the Bragg diffraction geometry for providing a maximum diffraction efficiency.
    Type: Application
    Filed: October 7, 2003
    Publication date: March 25, 2004
    Inventors: Leo Hatjasalo, Kari Rinko
  • Patent number: 6524659
    Abstract: The invention relates to a method for electrically controlling a flow of material, wherein a single- or multi-component, essentially polymer-based material (1), such as plastics, elastomer or the like, is charged electrically (I) and sprayed (II) in an electrical field (E) to a three-dimensional mould (2)/target (3). The method of the invention makes use of the mould (2)/target (3) set at an electric potential and provided with two or more treatment blocks (Li) to be set at voltage levels different from each other, especially for coordinating the courses of sprayed material particles and the electrical field (E) affecting the same, in such a manner that each section/area of the mould/target surface forms a material layer of desirable thickness in the spraying cycle (II). The invention relates also to an apparatus operating in accordance with the method.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: February 25, 2003
    Assignee: Oy OMS Optomedical Systems Ltd.
    Inventors: Leo Hatjasalo, Jarkko Valtanen
  • Patent number: 6505955
    Abstract: Method for production of conducting element, which conducting element consists at least of an elongated electricity conductive, in which several electric components (2), bringing out the lighting operation or like according to the use of the conducting element, are being attached to one after another in the longitudinal direction (s), whereafter the said entirety is being surrounded by a casing part (3) protecting the same. The conducting element is being manufactured from an essentially flat conductor part (1; 1′), such as a band, a stripe or a like, into which there has been attached electric components (2′), such as probes, LEDs, resistors and/or the like by arranging the same, preferably throughout built-in when viewed in a cross section with a casing material (3′) forming the said casing part (3), by exploiting a continuous manufacturing process, such as extrusion or like. The invention relases to a conducting element to be manufactured by the method, also.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: January 14, 2003
    Assignee: Oy Modular Technology Group Engineering Ltd.
    Inventors: Leo Hatjasalo, Kari Rinko