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:
Jan. 27, 2009
Filed:
Nov. 28, 2006
Markus Steckhan, Muhlheim, DE;
Dietmar Becker, Radevormwald, DE;
Markus Steckhan, Muhlheim, DE;
Dietmar Becker, Radevormwald, DE;
WIK Far East Ltd., Hong Kong, CN;
Abstract
A brewing unitfor a coffee machine comprises a brewing cylinderand a pistonwherein the brewing cylinderand the pistonare movable relative to one another in the axial direction. An activatable sealor seal assembly is provided to seal the pistonagainst the inner wallof the brewing cylinderThe sealis activated by an axial movement of pistonwith respect to the brewing cylinderUnder compression when activated, to form a seal between pistonand brewing cylinder inner walland which sealor seal assembly. When not activated, the sealis either not at all, only under low compression contact with the element.