Power cutting tool with synchronized dust control device

Details Power cutting tool with synchronized dust control device Power cutting tool with synchronized dust control device

2008-12-23

2011-11-29

Duda, Rina (Department: 2837)

Electricity: motive power systems

Positional servo systems

C388S937000, C083S471000

Reexamination Certificate

active

08067916

ABSTRACT:
A cutting tool such as a miter saw, arranged to have an arrangement for selectively making and breaking power of a first circuit and an independent second second circuit each connected respectively to a first motor operating the cutting tool and to a second motor operating a dust suppressor such as a vacuum device. The arrangement enables the two circuits to serve the first and second motors in synchrony and to be operated by the switch of the cutting tool. The arrangement may comprise a relay adapted to energize and de-energize the second circuit. The second circuit may comprise one or more electrical receptacles enabling the second motor to operate under control of the switch after being plugged in to one of the receptacles. The cutting tool may comprise a receptacle which is hard wired to the first circuit. The cutting tool may incorporate a dynamic brake.

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patent: 2004/0112191 (2004-06-01), Whiffen
patent: 2006/0266184 (2006-11-01), Hetcher et al.

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