ApplicationNo./PatentNo.: 200580006535
A portable differential pressure generating system has a portable flow accelerator (100) which has a high-pressure region (1 10) with a first cross-sectional area and a low-pressure region (106) with a second cross-sectional area, and the first cross-sectional area is larger than the second cross-sectional area. The accelerator (100) further includes an accelerator low-pressure tap (104) in fluid communication with the low-pressure region (106) of the flow accelerator, and the low-pressure tap (104) is suitable for fluid communication with the low-pressure port of the pressure measuring device. The accelerator further comprises an accelerator high-pressure tap (108) connected in fluid communication with the high-pressure region (1 10) of the flow accelerator, and the high-pressure tap is suitable for being connected in fluid communication with the high-pressure port of the pressure measuring device. The system also includes a portable pump (124) in fluid communication with the channel in the flow accelerator (100).
Date of application: March 3, 2005
Opening date: April 2007, 1 1.
Date of authorization announcement:
Applicant/patentee: ashcroft Limited.
Applicant's address: Connecticut, USA
Inventor: W.S. Kersh; Graf Nisha
Patent agency: Shanghai Patent and Trademark Office.
Agent: Zhang Lanying.
Patent type: invention patent
Classification number: G0 1L27/00