DUSTLESS VACUUM SYSTEM COMPRISING HAND

Brand	Owner	Address	Description
SANDMASTER	Walters, David	30 Freeman Lane Denville NJ 07834	dustless vacuum system comprising hand snader, flexible hose, and motorized filtration and vacuum unit, spare and replacement parts therfor;sanding services;SAND MASTER;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A vacuum pumping system includes a primary vacuum pump having an inlet for coupling to a system, and a secondary vacuum pump having an inlet coupled to the exhaust of the primary vacuum pump. The primary vacuum pump is an oil-free, positive displacement vacuum pump having multiple clearance seals between the inlet and the exhaust. The primary vacuum pump may be a scroll vacuum pump, and the secondary vacuum pump may be an oil-free diaphragm pump. The system may include a valve coupled to the exhaust of the primary vacuum pump and configured to couple the exhaust of the primary vacuum pump to an interpump exhaust in response to a selected condition, such as the pressure level at the exhaust of the primary vacuum pump.