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:
Jun. 16, 2009
Filed:
Jul. 25, 2003
Helen Hwai-an Lee, Cambridge, GB;
Grant Timothy Lewis Smetham, Surrey, GB;
Phillip John Stankus, West Sussex, GB;
Shaun Christopher Hazlewood, Cambridge, GB;
Elipidio Cesar Braga Nadala, San Mateo, CA (US);
Craig Alan Wisniewski, Sunnyvale, CA (US);
Helen Hwai-an Lee, Cambridge, GB;
Grant Timothy Lewis Smetham, Surrey, GB;
Phillip John Stankus, West Sussex, GB;
Shaun Christopher Hazlewood, Cambridge, GB;
Elipidio Cesar Braga Nadala, San Mateo, CA (US);
Craig Alan Wisniewski, Sunnyvale, CA (US);
Diagnostics for the Real World, Ltd., Sunnyvale, CA (US);
Abstract
In a sampler for sampling a first portion of a liquid flow, the liquid flow enters at a sampler inlet (). The sample passes through a valve () into a sample chamber () and then the valve closes, diverting the remainder of the liquid flow to a sampler overflow (). The valve comprises a valve inlet () coupled to the sampler inlet, a valve outlet () opening into the sample chamber and positioned, in use, substantially below the valve inlet, a shut-off chamber () separating the valve outlet from the valve inlet, and a valve overflow () leading from the shut-off chamber to the sampler overflow (). When the liquid level in the sample chamber rises to a predetermined level it disrupts the flow of liquid through the valve outlet and diverts later flow through the valve inlet into the shut-off chamber and through the valve overflow.