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:
Feb. 27, 2001
Filed:
Aug. 18, 1999
Evans Santagiuliana, Vicenza, IT;
Taplast Spa, , IT;
Abstract
A dosing pump for supplying liquid or thick substances from containers. The dosing pump has a cylindrical chamber in communication with the container for receiving the liquid. The pump also has a cylindrical collar connecting the dosing pump with the container. The dosing pump also has sealing valves, a liquid dispenser and a hollow piston capable of sliding in the cylindrical chamber. The sliding piston has a tubular chamber with opposed radial guides to permit the piston to slide in the guide element. The dosing pump also has a recovery element for relocating the piston to a rest position after delivery of the liquid or thick substance is supplied. The piston has a guiding element sealed in the inner cylindrical chamber surrounding the piston having an inner cylindrical surface and longitudinal opposed radial grooves for receiving the guides therein. And the dosing pump has a striker plane having a shoulder that prevents rotation of the piston. The inner cylindrical surface is connected with the outer cylindrical surface of the supporting and guiding element by radial reinforcement wings.