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:
Jul. 19, 2011
Filed:
Nov. 16, 2007
Richard D. Baron, Zephyrhills, FL (US);
Steven A. Garbee, Brandon, FL (US);
Valdemiro M. Quadros, Zephyrhills, FL (US);
Alan Lee Hackey, Zephyrhills, FL (US);
Richard D. Baron, Zephyrhills, FL (US);
Steven A. Garbee, Brandon, FL (US);
Valdemiro M. Quadros, Zephyrhills, FL (US);
Alan Lee Hackey, Zephyrhills, FL (US);
Nestec S.A., , CH;
Abstract
A pump for metering a liquid is disclosed comprising a flexible tube connected to a container with a pressure relief valve located in the flexible tube. A housing defines an aperture for receiving the flexible tube with a compression surface located adjacent to the aperture. A reciprocating member has a sealing element and a pumping element. A drive moves the sealing element for pinching the flexible tube against the compression surface upstream from the pressure relief valve for trapping liquid between the sealing element and the pressure relief valve. The drive moves the pumping element for collapsing the flexible tube against the compression surface for pumping the trapped liquid to discharge a metered quantity of the liquid from the pressure relief valve.