Patent · US Active

Drywall screwdriver

US9427850B2 · kind B2 · utility

1Cited by

8References

17Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Andre Ullrich · Echterdingen, DE
Holger Froehling · Stuttgart, DE

Key dates

Filing date	Jun 1, 2012
Grant date	Aug 30, 2016
Priority date	—
Expiry date	May 2, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB25B23/0064
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A drywall screwdriver includes a housing, an element delimiting the depth of engagement, a drive unit, an outlet spindle, and a planetary gear that comprises at least one hollow wheel. The drywall screwdriver further comprises at least one support element that is different from a housing element and that at least partially surrounds the ring gear of the planetary gear.

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