Inventor

KOIVUKUNNAS PEKKA

FI41 patents

⚠️ This page may combine multiple inventors who share the name “KOIVUKUNNAS PEKKA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOIVUKUNNAS PEKKA

METSO PAPER INC

Method for calendering tissue paper

Processing device and method of operating the device for processing a coated or uncoated fibrous web

Method and equipment for cleaning and maintaining rolls

Multiple-nip calender and calendering arrangement

Method for leading a web between calendar nips, and a calendar

Method and apparatus for producing calendered paper or board

Method and apparatus for producing calendered paper or board

Method for calendering

Dryer section

Method for cutting a web feeding tail and a corresponding cutting device

Making a powder metal roll end for a heatable roll

Method and arrangement for surface treatment of a paper and/or board web

Method and assembly for opening calender nips

Threading device and method for threading the tail of the web

Method and calender for calendering a paper web above the glass transition range of the paper

Method and device changing the vapor pressure inside the paper web in calendering

Take-out roll, spreader roll, or equivalent for a web-like material

Method and device for passing a web in connection with a finishing device of a paper or board machine

Method and arrangement for computing and regulating the distribution of a linear load in a multi-nip calender and a multi-nip calender

Method for controlling one or more surface quality variables of a fiber web in a shoe calender

VALMET CORP

Thermally insulated roll and insulation assembly for a thermoroll

Method and apparatus for calendering a paper or board web

Method and device for conditioning of a roll, in particular of a roll in a paper machine or in a paper finishing device

Method for quick-opening a set of rolls in a calender, in particular in a supercalender, and a hydraulic system for a set of rolls in a calender, in particular a supercalender

Method and device in threading of paper web

Method for manufacture of a calender roll provided with an elastic coating and calender roll manufactured in accordance with the method

Take-out leading roll, spreader roll, or equivalent for a web-like material

Device for fastening a roll to a frame of a paper machine

VALMET PAPER MACHINERY INC

Method for calendering a paper or an equivalent web material and a calender that makes use of the method

Method in calendering of a paper web and a calendar that makes use of the method

Inverted blade metering unit and method for blade-coating a material web

Steam box

Short-dwell coater

Calender with pivotally displaceable roll

AVANTONE OY

Printed TTI indicators

Device and a method for producing a diffractive microstructure

SANDVIK MINING & CONSTRUCTION OY

Inlet tube, rock drilling rig and method of sampling

Homogenizer, rock drilling rig and method of sampling

METSO PAPER AUTOMATION OY

Method and apparatus for measuring the tension of a moving web

METSO AUTOMATION OY

Arrangement for measuring properties of a moving paper web

KOIVUKUNNAS PEKKA

Anti-counterfeit hologram