Patent · US Active

Metering dispenser for flowable compositions

US11938507B2 · kind B2 · utility

0Cited by
86References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 9, 2021
Grant dateMar 26, 2024
Priority date
Expiry dateApr 10, 2041

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA45D2200/055
  • WIPO fieldSurface technology, coating
  • WIPO sectorChemistry

Abstract

Metering dispensers include a body configured to hold a flowable composition in a chamber, a drive screw coupled to the body, and a plunger threadingly coupled to the drive screw. The plunger includes at least two annular lips that form a fluid seal with the chamber as the plunger travels along the drive screw through the chamber. A base is rotationally coupled to the body with a cam that contacts at least one tab extending externally from the body so that the tab enters at least one low point on the cam by traveling over a trailing edge of the low point, and the trailing edge then prevents the tab from exiting the low point in the direction of the trailing edge.

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