Device and process for producing pellets from a plastic melt

Details Device and process for producing pellets from a plastic melt Device and process for producing pellets from a plastic melt

2011-01-25

2011-01-25

Tucker, Philip C (Department: 1791)

Plastic article or earthenware shaping or treating: apparatus

Immersed shaping orifice discharging directly into liquid...

C264S014000, C264S180000, C425S317000

Reexamination Certificate

active

07874823

ABSTRACT:
The invention relates to a device for producing pellets from a plastic melt by extrusion, comprising a perforated plate from which the plastic melt is extruded at a pressure above the ambient pressure; a process chamber into which the plastic melt is extruded; a chopping device for chopping strands of the plastic melt extruded from the perforated plate into individual granules, the process chamber being filled with a process fluid; and a pumping device which supplies the process fluid to the process chamber at a pressure above the ambient pressure, the pressure of the process fluid with the therein contained granules being reduced downstream of the process chamber. According to the invention, an energy converter is provided downstream of the process chamber, wherein said energy converter extracts at least some of the pressure energy from the process fluid with the therein contained granules, reduces the pressure of the process fluid with the therein contained granules and converts at least some of the extracted energy into a reusable form of energy. The invention further relates to a corresponding process for producing pellets from a plastic melt by extrusion and also to a corresponding application.

REFERENCES:
patent: 4721588 (1988-01-01), Burchard et al.
patent: 2005/0154183 (2005-07-01), Ekart et al.
patent: 2005/0156344 (2005-07-01), Dietzen et al.
patent: 2007/0080476 (2007-04-01), Tsai et al.
patent: 2009/0108480 (2009-04-01), Schmaus et al.
patent: 1915950 (1969-12-01), None
patent: 4337205 (1995-05-01), None
patent: 10226749 (2003-12-01), None
patent: 10358805 (2005-07-01), None
patent: 0249157 (1987-12-01), None
patent: 1522395 (2005-04-01), None
patent: 1621310 (2006-02-01), None

Affiliated with

Also associated with

Rating

Device and process for producing pellets from a plastic melt does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device and process for producing pellets from a plastic melt, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device and process for producing pellets from a plastic melt will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2714040