Patent · US Active

Toothbrush having integral replaceable toothpaste cartridge

US9743748B2 · kind B2 · utility

0Cited by
10References
3Claims
0Family size

Inventor

Key dates

Filing dateJul 24, 2014
Grant dateAug 29, 2017
Priority date—
Expiry dateAug 1, 2034

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA46B11/0065
  • WIPO fieldOther consumer goods
  • WIPO sectorOther fields

Abstract

A toothbrush has a head with bristles, a stem and a handle. A replaceable cartridge containing toothpaste is positioned within the handle. The cartridge includes a threaded rod and plunger. When a torque force is applied to the threaded rod the plunger may move longitudinally through the cartridge. This forces toothpaste from the cartridge and through a conduit in the handle to the head. He had includes one or more mechanisms for dispensing toothpaste on the bristles. The cartridge includes a nozzle having an integral one-way valve which extrudes the toothpaste. The head includes one or more nozzles which have an integral one-way valve which extrudes the toothpaste.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.