US 12,129,599 B2
Pressure screen for a fiber web product process with removable cover
Steve Enzor, Norcross, GA (US); Bryson Hepler, Nashua, NH (US); and Robert Short, Nashua, NH (US)
Assigned to Valmet Technologies, Inc., Espoo (FI)
Filed by Valmet Technologies, Inc., Espoo (FI)
Filed on Aug. 22, 2023, as Appl. No. 18/236,485.
Claims priority of provisional application 63/402,349, filed on Aug. 30, 2022.
Prior Publication US 2024/0068162 A1, Feb. 29, 2024
Int. Cl. D21F 1/00 (2006.01); D21H 11/14 (2006.01)
CPC D21F 1/0027 (2013.01) [D21H 11/14 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A screen comprising:
an inlet zone, a basket and accept zone and a reject zone, which screen further comprises a housing, inside which a rotor is located, wherein the reject zone of the screen comprises a cover forming a rejects chamber for the reject zone and wherein the cover of the rejects chamber of the screen is removable by a reopenable attachment means attached to the housing of the screen, wherein the cover is of cast material, and having an inwardly facing concavity facing towards the accept zone, and wherein the cover has a mounting flange extending therefrom.