Screw press for compacting solid waste
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 20, 2012
Grant Date -
Apr 8, 2010
app pub date -
Jan 17, 2008
filing date -
Jan 18, 2007
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Screw press, with small dimensions, particularly suitable for the compaction of solid waste for disposal also using sorted-waste collection. The screw press comprises an initial large-diameter screw section with a wide-pitch helix, communicating laterally with the bottom opening of the loading hopper (1) in order to remove the material from the hopper and feed it to a following small-diameter screw section with a small-pitch helix, surrounded by an internally scored stator body. This produces the feeding and compaction of the material which also occurs in conjunction with the action of a constriction which acts on the discharge mouth of this latter screw section. A press of this type has the two screw sections (3, 4) which are separated and arranged parallel to each other and one above or around each other, so as to form overall a press which no longer has as its length the sum of the lengths of the two screw sections. Instead, it has a length corresponding to the length of the longer of the two screw sections. The two screw sections are operated at different speeds, with the second compacting screw section (4) rotating at a speed greater than that of the first feeder screw section.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully