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:
Aug. 23, 2011
Filed:
May. 29, 2008
Vincent W. S. Lau, Sai Kung, HK;
Vincent W. S. Lau, Sai Kung, HK;
Ideal Time Consultants Limited, Tortola, VG;
Abstract
A liquid enclosure has an automatic air bleeding valve which has a first stage wherein the fluid pathway is open and a one-way valve is interposed in the fluid pathway; a second stage wherein the fluid pathway is open and circumvents the one-way valve; and a third stage wherein the fluid pathway is closed. A float automatically transitions the valve from the first, then second, then third stage as a level of the liquid in the liquid holding chamber rises from below the first to above the second predetermined level, and the valve automatically returns from the third stage to the second stage, then to the first stage as the level of the liquid in the liquid holding chamber lowers from above the second to below the first predetermined level.