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:
Dec. 27, 2011
Filed:
Jun. 18, 2007
George A. Holmes, West Chicago, IL (US);
Tadeusz Rybka, Streamwood, IL (US);
George A. Holmes, West Chicago, IL (US);
Tadeusz Rybka, Streamwood, IL (US);
Other;
Abstract
An underwater pelletizer for cutting extruded plastic into a flow of liquid is disclosed. The pelletizer includes a cutter hub () carrying at least one cutter blade (), a cutter shaft () for rotationally driving the cutter hub, and a flexible torque converter () for connecting a motor to the cutter hub. In one embodiment, the torque converter has a first set of bushings () that is fastened to a face () of the cutter hub and a second set of bushings that is fastened to a face () of the cutter shaft. The disclosed pelletizer has a shaft extension () configured to engage a motor shaft, the shaft extension having an outer diameter having formed thereon a splined portion () and first () and second () sealing surfaces. A disclosed motor adaptor () has a seal surface (). A water chamber plate () may also have a seal surface (). A first mechanical seal () is illustratively configured to engage the first seal surface () of the shaft extension and the seal surface () of the motor adaptor. A second mechanical seal () is illustratively configured to engage the second seal surface () of the shaft extension and the seal surface () of the water chamber plate. Furthermore, a cutter shaft () has a splined bore () formed therein for engaging the splined portion () of the shaft extension.