Presses – With drain means for expressed liquid – Drainage through or along pressure surface
Reexamination Certificate
2007-09-11
2007-09-11
Nguyen, Jimmy (Department: 3725)
Presses
With drain means for expressed liquid
Drainage through or along pressure surface
C100S128000, C100S146000
Reexamination Certificate
active
10570592
ABSTRACT:
A screw press (1) for pressing fibrous material, in particular sugar beet pulp, comprising: at least one pair of helical elements (30) which are disposed mutually parallel and side by side and comprise at least one helix (32, 33) disposed about a rotary shaft which extends along a predetermined axial direction; a perforated walled filtering cage (5) supported by equidistant hoops (13, 14) and enclosing the helical elements (30) as an exact fit; a loading hopper (8); a discharge opening (9) for the exit of the pressed material; a collection sump (10) positioned externally to the filtering cage (4); in which the filtering cage (5) presents a modular structure having a distance between the axes of each module (M) which is constant and is a sub-multiple of, or equal to, the dimension of the loading hopper (8) measured along the predetermined axial direction, the loading hopper (8) being shiftable by its replacing one or more modules (M) of the filtering cage (5).
REFERENCES:
patent: 3019484 (1962-02-01), Strohmeier
patent: 4150617 (1979-04-01), Schramm et al.
patent: 4565124 (1986-01-01), Stautland et al.
patent: 5743178 (1998-04-01), Babbini
patent: 0 358 837 (1990-03-01), None
patent: 1 263 433 (1981-06-01), None
patent: 2 472 970 (1981-07-01), None
Browdy and Neimark PLLC
New Pressing Technology di Babbini Maria Teresa e C.S.R.L.
Nguyen Jimmy
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