Screen apparatus for papermaking material
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 21, 2000
Grant Date -
N/A
app pub date -
May 25, 1999
filing date -
Apr 23, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A screen apparatus is formed of a tank for receiving a papermaking material, a cylindrical first screen for partitioning the tank into a first chamber and a second chamber, an annular second screen disposed in the first chamber, and a rotating member disposed in the first chamber. The first screen has a closed end at one side, an open end at the other side, and a plurality of first openings in a circumferential portion thereof. The annular second screen has second openings in a plate portion and a large opening at the center thereof. The annular second screen is disposed adjacent to the first screen at the side of the closed end, and the rotating member faces the large opening of the second screen and the closed end of the first screen. Also, the rotating member includes first agitating members facing the second screen, and second agitating members facing the second screen. When the papermaking material is supplied to the first chamber, foreign materials contained in the papermaking material are removed by the first and second screens, and refined papermaking material is discharged through the second chamber. Clinging and crushing of the foreign materials can be prevented.
First Claim
Other Claims data not available