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:
Mar. 29, 2005
Filed:
Jan. 31, 2003
Wayne Warne, Burnsville, MN (US);
Goran Hermodsson, Staffanstorp, SE;
Ake Svedberg, Woodburg, MN (US);
Yoshiki Katsumata, Buffalo Grove, IL (US);
Wayne Warne, Burnsville, MN (US);
Goran Hermodsson, Staffanstorp, SE;
Ake Svedberg, Woodburg, MN (US);
Yoshiki Katsumata, Buffalo Grove, IL (US);
Tetra Laval Holdings & Finance, SA, Pully, CH;
Abstract
A centering support for a piston in a piston-type pump having a diaphragm extending between the piston and the cylinder to define a product end of the pump and a driven end of the pump includes at least three equally radially spaced, centering elements extending radially outwardly from the piston for contacting the cylinder wall. The centering elements define a gap between the piston and the cylinder wall. The centering elements are disposed on the piston spaced from the diaphragm at the product end of the pump.