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:
Sep. 10, 2013
Filed:
Feb. 28, 2011
Brian Robert Law, Leicester, GB;
Jeffrey William Spencer, Leicester Forest East, GB;
David John Pritchett, Ashby de la Zouch, GB;
Brian Robert Law, Leicester, GB;
Jeffrey William Spencer, Leicester Forest East, GB;
David John Pritchett, Ashby de la Zouch, GB;
Rieke Corporation, Auburn, IN (US);
Abstract
A dosing device for dispensing liquid from a container () in which flow through flow openings () to an outlet tube () is blocked after controlled delay by an obturator () moveable within a control chamber () mounted in a container neck () behind the outlet tube (). Movement of the obturator () is governed by restricted flow through control openings () at the rear of the control chamber. Restoration of the obturator to the back of the control chamber facilitates repeated dosing. An elastomeric element () of resiliently deformable material promotes a seal to achieve a cleanly defined dose. In one proposal the elastomeric element coats the surface of the obturator and/or the outlet tube () to cut off the flow. Another proposal provides a one-way elastomeric valve element () for blocking the flow openings to enable rapid recovery after a dosing operation.