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:
May. 28, 2019
Filed:
Feb. 18, 2015
Applicant:
Oxford University Innovation Limited, Botley, Oxford, GB;
Inventors:
Kamaljit Singh Chana, Oxford, GB;
Jonathan Shamus Sullivan, Fleet, GB;
Assignee:
OXFORD UNIVERSITY INNOVATION LIMITED, Botley, Oxford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 13/12 (2006.01); B29C 37/00 (2006.01); F15B 15/28 (2006.01); G01B 13/03 (2006.01);
U.S. Cl.
CPC ...
G01B 13/12 (2013.01); B29C 37/00 (2013.01); F15B 15/2838 (2013.01); G01B 13/03 (2013.01); B29C 2037/90 (2013.01);
Abstract
Methods and apparatus for measuring the position of an object relative to a reference are disclosed. In an arrangement, a pressurized fluid is used to drive rotation of a cylinder around a piston and to bias the cylinder longitudinally. Ducts are provided in the cylinder and arranged so at to provide pulses of the fluid out of the cylinder through a reading port, the pulses being such as to uniquely identify the position of the cylinder relative to the piston and thereby of the object relative to the reference.