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:
Apr. 17, 2007
Filed:
May. 18, 2005
Applicant:
Ralph Sutehall, Newport, GB;
Inventor:
Ralph Sutehall, Newport, GB;
Assignee:
Prysmian Cables & Systems Limited, London, GB;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 13/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of determining a length Lat least representative of the length of a passage along which an optical unit or cable is to be installed by blowing, comprises the steps of flowing a pressurised gas into the passage at a substantially constant pressure Pand substantially constant flow rate Vuntil gas pressure within the passage reaches a predetermined level P. The time period tduring which the pressurised gas was flowed into the passage is determined and then the length Lis determined by reference to the time period t.