The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 12, 2003
Filed:
Apr. 02, 2002
Tatsuya Tanaka, Takasago, JP;
Kazuhisa Fujisawa, Kobe, JP;
Kazuko Saka, Kobe, JP;
Tomoji Takahashi, Kobe, JP;
Koichi Fukushima, Kobe, JP;
Yasuaki Yamane, Takasago, JP;
Kabushiki Kaisha Kobe Seiko Sho, Kobe, JP;
Abstract
In the case of thickening a feed resin without pre-drying, a device is taught to enhance the thickening effect. The device includes a chamber having a mixing rotor therein for continuously mixing a resin between a feed port and a discharge port . A plurality of vent ports connected to vacuum pumps are provided for reducing the pressure in the chamber. An element, e.g. a screw feeder , is provided for introducing a viscosity-increasing chemical agent into the chamber. The screw feeder is isolated from the reduced pressure areas of the chamber by elements , e.g. reverse screw flights of the rotor. In operation, feed resin from a hopper enters the chamber through port and is dehydrated while being continuously mixed in a drying section via vents . After addition of the chemical agent, the resin is continuously mixed in a thickening section while being deaerated.