Patent · US Active

Blade element

US9222219B2 · kind B2 · utility

0Cited by

3References

20Claims

0Family size

Assignee

Valmet Technologies, Inc. · FI

Inventors

Petteri Vuorio · Valkeakoski, FI
Ville Ruola · Helsinki, FI
Anders Hawen · Tyresö, SE
Peter Bergqvist · Hagfors, SE
Håkan Sjöström · Helsinki, FI
Christer Hedlund · Katrineholm, SE

Key dates

Filing date	May 10, 2013
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Dec 28, 2033

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21D1/30
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A blade element (20) for a conical portion (4) of a stator (2) of a refiner (1). The blade element (20) has a feed end (24), a discharge end (25), and a refining surface (21) which has a feed zone (26) at the feed end (24) of the blade element (20). The feed zone (26) of the blade element (20) has at least one guide groove (29) extending from the feed end (24) toward the discharge end (25) for guiding a flow of material to be refined from the feed end (24) toward the discharge end (25). The depth of the guide groove (29) is arranged to change in a direction transverse in relation to the extending direction of the guide groove (29).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.