1
Heikki Ahonen, Jari Lindroos, Veli Sarkkinen: Process for the recovery of lead from lead scraps. Lyijyvalkoistehdas Gronberg Oy Blyvittfabriken Gronberg, Jay L Chaskin, June 20, 1978: US04096045 (10 worldwide citation)

A process for the recovery of lead from battery scraps by mixing the lead raps at elevated temperature with an aqueous solution of an alkali metal chloride and hydrochloric acid in order to dissolve, in the form of lead chloride, the lead compounds present in the lead scraps, separating an aqueous s ...


2
Heikki Ahonen: Steam generator heated by combination of electric heat and condensation of contaminated process steam. Yhtyneet Paperitehtaat Oy, Birch Stewart Kolasch & Birch, July 30, 1985: US04532413 (5 worldwide citation)

A steam generator assembly, particularly for use in connection with the mechanical preparation of pulp, for generating pure steam required in a subsequent process, such as drying of proper in a paper machine, by utilizing the condensation heat of contaminated steam coming from a preceding process, s ...


3
Bernhard Dettling, Heikki Ahonen: Method of coating cellulosic and lignocellulosic webs. ISI HEAD Oy, Smith Hill and Bedell, July 2, 2002: US06413591 (4 worldwide citation)

A method for coating paper, wherein a coating composition containing coating particles is applied to the surface of a paper web containing lignocellulosic fibers to produce a coated paper web having coating particles bound to the paper web, and the coated web is dried. According to the method the su ...


4
Heikki Ahonen, Reijo Hakulinen, Eero Lahti: Method of manufacturing a reusable mold. Oy Partek, Birch Stewart Kolasch & Birch, September 12, 1989: US04865783 (3 worldwide citation)

A method for the manufacture of a mold out of mold material from a previous blank by machining each blank into a desired shape by means of a machine tool controlled by a computer utilizing a dimensioning data set. Each blank is manufactured by feeding an organic polymer material whose melting point ...


5
Heikki Ahonen, Bernhard Dettling: Apparatus and method for grinding webs made of fiber material. IDI Head Oy, Smith Hill and Bedell, December 24, 2002: US06497793 (3 worldwide citation)

Apparatus and method for grinding levelling of paper, cardboard or a similar continuous web manufactured from vegetative based fibrous raw-material, said apparatus comprising a plurality of grinding means such as rolls or belts preferably arranged on both sides of the web, said means being deviated ...


6
Heikki Ahonen: Method and apparatus for cleaning freight containers as well as for treating and circulating the fluids used. Birch Stewart Kolasch & Birch, January 15, 1991: US04984593 (1 worldwide citation)

The invention concerns a method and an apparatus for cleaning freight containers and for treating and circulating the cleansing liquids. According to the invention, an aqueous soda-containing solution is used as cleansing liquid, volatile organic substances, if any, are separated from the cleansing ...


7
Bernhard Dettling, Heikki Ahonen: Surface treatment method in particular for improving barrier and printing properties of webs. Idi Head Oy, Smith Hill and Bedell, November 11, 2003: US06645335 (1 worldwide citation)

The present invention concerns a process for coating a web by applying a coating layer comprising pigment particles to the surface of the web. According to the invention, the coating layer is contacted at a preselected stage with a smooth surface, the coating layer is at least partially dried while ...


8
Heikki Ahonen, Timo Kenakkala, Pertti Kokkonen: Method of producing cement or concrete. Oy Iampella, January 15, 1991: US04985081 (1 worldwide citation)

A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avo ...


9
Bernhard Dettling, Heikki Ahonen: Method for treating fibrous webs. IDI Head Oy, Smith Hill and Bedell, October 22, 2002: US06468133 (1 worldwide citation)

The present invention concerns a method for treating the surface of a fibrous web by mechanical grinding. According to the invention, the grinding is performed at substantially dry state by removing only the higher parts of the paper surface without substantially increasing the density of the web. B ...


10
Heikki Ahonen, Pertti Kokkonen, Timo Kenakkala: Method of producing cement or concrete. Oy Tampella, CHEN XIUZHUANG, September 26, 1990: CN90101388

A method of producing cement or concrete, comprising the step of adding fly ash to the cement or concrete at the production stage, the fly ash containing lime and reaction products from the reaction occurring between lime and sulphur oxides in connection with the desulphuration of flue gases. To avo ...