Patent · US Active

Dust extractor with flat back

US11904424B2 · kind B2 · utility

0Cited by

3References

9Claims

0Family size

Assignee

BLACK & DECKER INC. · US

Inventors

Markus Rompel · Runkel, DE
Ian S. Bell · Sunninghill, GB
Uwe Nemetz · Wagenfeld, DE

Key dates

Filing date	Sep 20, 2017
Grant date	Feb 20, 2024
Priority date	—
Expiry date	Sep 20, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB28D7/02
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A dust extractor for a drill is provided, including a single air flow path, a shroud having an internal chamber for collecting dust in fluid communication with a first end of the single air flow path, a filter assembly located in the single air flow path, a vacuum source connected to a second end of the single air flow path, and an air flow control mechanism controlling a direction of air flow generated by the vacuum source. During a normal operation, the vacuum source draws air and entrained debris from the internal chamber of the shroud through the single air flow path. During a back flush operation, the vacuum source blows air and entrained debris through the single air flow path towards the shroud. The air passes through the filter assembly to remove the entrained debris in either direction.

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