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:
Nov. 10, 2009
Filed:
Jun. 10, 2004
David Freson, Estrees-Deniecourt, FR;
Jean-françois Cailloux, Bussy Saint Georges, FR;
David Freson, Estrees-Deniecourt, FR;
Jean-François Cailloux, Bussy Saint Georges, FR;
Essilor International (Compagnie Generale d'Optique), Charenton-le-Pont, FR;
Abstract
The inventive valve comprises a dosing chamber () connected to a dispenser () provided with input and output orifices () which are connected to said dosing chamber () when the dispenser () is in a position (), an injection orifice () being isolated. When the dispenser () is in a position (), the input and output orifices () are isolated from the dosing chamber () and from an injection orifice () which are connected to each other. In addition, said device comprises a source of polymerisable material which is provided with a container (), a continuous pump () and a control unit () for control elements () of the valve ().