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. 07, 2017
Filed:
Jun. 17, 2013
Applicant:
Gotohti.com Inc., Beamsville, CA;
Inventors:
Heiner Ophardt, Arisdorf, CH;
Ali Mirbach, Issum, DE;
Assignee:
GOTOHTI.COM INC., Beamsville, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F15B 15/16 (2006.01); B05B 11/00 (2006.01);
U.S. Cl.
CPC ...
F15B 15/16 (2013.01); B05B 11/007 (2013.01); B05B 11/3001 (2013.01); B05B 11/3097 (2013.01);
Abstract
A piston pump dispenser in which a volume in a compartment defined inside a piston chamber-forming member and between axially spaced discs on a piston varies with movement of the piston in a cycle of operation due to the piston having a tubular portion between the discs which varies in axial length. The tubular portion has a circumferentially extending wall in the shape of a solid of revolution about an axis of the piston with opening through the wall for fluid flow. The tubular portion acts as a spring to axially bias the axially spaced disc apart.