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:
Apr. 29, 2014
Filed:
Dec. 21, 2011
Rudolf Matusch, Marburg, DE;
Rudolf Matusch, Marburg, DE;
LTS Lohmann Therapie-Systeme AG, Andernach, DE;
Abstract
The end face of a cylinder-piston unit has a press-in area, engaging around the mouth, and a press-on area, surrounding the press-in area. The press-in area comprises an inner web, delimiting the mouth, and an outer web. The webs delimit a recess, which surrounds the inner web and of which the depth measured parallel to the center axis of the cylinder-piston unit is at least a quarter of its width in a plane oriented normal thereto. The press-on area, at least during an injection, is offset counter to the injection direction relative to the end face of the press-in area. Moreover, the surface of the press-on area projected into a plane normal to the center axis is at least as large as the surface of the press-in area projected into the same plane.