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:
Jun. 08, 2004
Filed:
Nov. 19, 2002
Applicant:
Inventor:
Robert Alan Anderson, West Midlands, GB;
Assignee:
Lucas Industries Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 1/3044 ;
U.S. Cl.
CPC ...
F15B 1/3044 ;
Abstract
In a solenoid-controlled valve assembly a biasing means ( ) is adapted to apply a resisting force to a spool ( ) in a direction opposite to the direction substantially of a force applied by an armature ( ), and engagement between at least one of the spool and the biasing means and the spool and the armature is through an engagement means defining a single point of contact. The spool ( ) may be provided with at least one land adapted to connect and disconnect two flow passages ( ), and the first ends of the two passages are spaced apart in a direction parallel to the axis of the bore by a smaller distance than the spacing between the second ends of the passages.