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:
Feb. 28, 2006
Filed:
Feb. 19, 2004
Applicants:
Graham Heeks, Cheshire, GB;
Nigel Peter Fox, Staffordshire, GB;
Inventors:
Graham Heeks, Cheshire, GB;
Nigel Peter Fox, Staffordshire, GB;
Assignee:
Autospan Limited, Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 17/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A reactive speed hump () includes a fluid flow control valve assembly (). A first valve () is naturally open and a second valve (), naturally closed. Application of fluid pressure on the control valve assembly below a first lower threshold level or above a second higher threshold level allows a flow of fluid from the inlet to the outlet, but an application of fluid pressure on the control valve between said first and second threshold levels allows substantially no fluid to flow between the inlet () and the outlet ().