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. 25, 1990
Filed:
Dec. 07, 1988
Gebrueder Buehler AG, Uzwil, CH;
Abstract
A pellet mill comprises a perforated annular pellet die having an axis of rotation and first and second ends; and a die carrier rotatable about an axis of rotation and having an annular recess for receiving the first end of the annular pellet die. Fixing devices are secured to the first end of the die and cooperating fixing devices are provided in the annular recess in the die carrier. The fixing devices and the cooperating fixing devices have a first position relative to one another permitting insertion of the first end into the annular recess by relative axial movement of the die and die carrier and a second relative position permitting the transmission of force between the fixing devices and the cooperating fixing devices to draw the die towards the die carrier into a clamped position. Various different devices are provided for generating the force. In addition centering devices are provided which are effective on drawing of the die towards the die carrier to center the die relative to the die carrier. The pellet mill also includes a device for releasing the die from the die carrier.