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:
Oct. 21, 2003
Filed:
Feb. 04, 2002
Applicant:
Inventors:
Assignee:
Rancilio Macchine per Caffe' S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J 3/140 ;
U.S. Cl.
CPC ...
A47J 3/140 ;
Abstract
An infusion group for infusion making machines, in particular for making espresso coffee, comprises a moving member ( ) that has an internal cavity ( ) adapted to receive a dose of powdered substance and that can be horizontally translated. The chamber co-operates with a piston ( ) that can be horizontally translated and with a stationary piston ( ), and the dose of powdered substance can be compressed between such pistons because of the translation. The moving member ( ) and the moving piston ( ) are simultaneously translated in opposite directions by respective threaded shafts ( ) that are simultaneously rotated in opposite directions.