Patent · US Expired

Power-operated sword saw

US5473820A · kind A · utility

28Cited by

5References

21Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Werner Neubert · Stuttgart, DE
Joachim Schadow · Stuttgart, DE
Joachim Mueller · Rutesheim, DE
Manfred-Otto Staebler · Waldenbuch, DE
Manfred Dohr · Eßlingen, DE
Heinz Warkentin · Allmersbach im Tal, DE

Key dates

Filing date	Mar 7, 1994
Grant date	Dec 12, 1995
Priority date	—
Expiry date	Mar 7, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T83/9481
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A power-operated sword saw comprises a plate-shaped sword having a lower region with a guiding groove, two saw blades reciprocatingly movable in opposite directions parallel to one another and each having a front saw blade tip and an opposite clamping end. The saw blades have a toothed side provided with a plurality of teeth and an opposite saw blade back guided in the guiding groove of the sword. A drive is coupled with the clamping ends of the saw blades through a clamping unit. The saw blades are jointly coupled with the clamping unit and released from the clamping unit by a blocking element which blocks the clamping ends in a coupling position and release the clamping ends in a contact-free manner.

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