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, 1993
Filed:
Nov. 26, 1991
John M Bristol, Rye, NH (US);
APV Gaulin, Inc., Wilmington, MA (US);
Abstract
A homogenizer comprises a homogenizing valve mounted to a pump block. The homogenizing valve includes a valve seat and a valve member positioned adjacent to the valve seat forming a gap through which fluid is expressed during homogenization. The homogenizer also comprises magnetostrictive actuator assembly which maintains a process pressure by controlling the size of the gap. The actuator assembly includes a magnetostrictive member which is coupled to the valve member and a generator for applying a magnetic field to the magnetostrictive member. The presence of the magnetic field produces magnetostriction of the magnetostrictive member which causes actuation of the valve member, thereby adjusting the size of the gap.