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. 09, 2003
Filed:
Jun. 18, 2001
Patrik Jonasson, Askim, SE;
Lennart Sjöstedt, Åryd, SE;
Lennart Sven Thålin, Mölndal, SE;
Mats Pegelow, Kullavik, SE;
Göran Nybom, Sandby, SE;
Ove Andersson, late of Västra Frölunda, SE;
Markpoint AB, Sverige, SE;
Abstract
Fluid dispensing apparatus ( ) for selectively dispensing desired quantities of a fluid under pressure. The apparatus includes a base plate ( ) having a dispensing passage ( ) extending about a first axis ( ); a valve arrangement ( ) associated with the dispensing passage ( ), and a piezoelectric transducer ( ) acting on the valve arrangement ( ) to effect displacement of the valve arrangement between a first position in which the dispensing passage ( ) is closed and a second position in which the dispensing passage is connected to a source of the fluid under pressure. The valve arrangement ( ) includes a slide valve ( ), with the slide valve and the piezoelectric transducer ( ) being arranged such that during at least initial displacement of the valve arrangement from the second position towards the first position, the slide valve ( ) is displaced in a direction transverse to the first axis ( ).