Pen-like dispenser for a dental material

US10016257B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Helmut Pauser · Dießen, DE
• Marc Peuker · Schorndorf, DE
• Mathias Bertl · Wildsteig, DE
• Bruce R. Broyles · Oakdale, US

Key dates

• Filing date: Apr 28, 2014
• Grant date: Jul 10, 2018
• Expiry date: Apr 28, 2034

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61C5/50
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A pen-like dispenser for dispensing a dental material has a handle and a cover which are attached for rotation relative to each other about a longitudinal axis of the dispenser, and a cartridge for holding the dental material and a screw plunger for extruding the dental material from the cartridge by screwing action. The cartridge and the cover in combination form a rotary slide valve which is operable by rotation about the longitudinal axis between a storage position, in which the cover closes a dispensing outlet of the cartridge, and a dispensing position, in which an opening in the cover opens the dispensing outlet of the cartridge. A relative rotation between the screw plunger and the handle about the longitudinal axis is restricted, and a relative rotation between the cartridge and the cover about the longitudinal axis is enabled within a predetermined rotation angle and restricted otherwise.