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:
Sep. 02, 2019
Filed:
Apr. 13, 2014
Quantex Patents Limited, London, GB;
Richard P. Hayes-Pankhurst, London, GB;
Graham K. Lacy, London, GB;
Christopher E. Nightingale, London, GB;
QUANTEX PATENTS LIMITED, London, GB;
Abstract
A pump is formed by a housing () having an inlet () for connection to a source of fluid and an outlet () for pumped fluid. A rotor () is rotatable within the housing and the inlet () and the outlet () are spaced apart around the path of the rotor () in the housing. The rotor () has surfaces (a,b,c,d) that form, with the housing (), closed chambers (a,b,c,d) which travel around the housing () to convey fluid from the inlet () to the outlet (). The housing () carries a seal () that is located between the inlet () and the outlet () in the direction of travel of the rotor (). The seal () co-operates with the rotor surfaces (a,b,c,d) as the surfaces (a,b,c,d) pass between the outlet () and the inlet () to prevent the formation of a chamber during said passage and so prevent fluid flow from the outlet () to the inlet (). Such a pump is easily and cheaply produced and is particularly useful in medical applications.