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US 6,328,442 B1Granted
Particulate filtering muffler
AssigneeHewlett-Packard Company
InventorRichard L. Brinkly
Life of this patent
Estimating the term…
Abstract
An ink jet printing system having a vacuum hold down, a vacuum source, and a particulate filtering muffler for trapping ink aerosol particles and muffling noise produced by the vacuum source.
Claims2
A noise muffling and particulate filtering system comprising:
- a duct having an interior;
- particle entrapping filter baffle walls disposed in the interior of said duct for trapping ink aerosol particles;
- wherein said duct and said filter baffle walls are formed of the same material;
- and
- a sealant coating disposed on the outside of said duct.
2 more elements
An ink jet printing system comprising:
- a vacuum hold down mechanism for holding a print medium;
- an ink jet writing instrument for making marks on the print medium;
- a vacuum pump for providing a vacuum to the vacuum hold down mechanism;
- a duct for receiving exhaust from said vacuum pump;
- particle entrapping filter baffle walls disposed in the interior of said duct for trapping ink aerosol particles;
- wherein said duct and said filter baffle walls are formed of the same material;
- and
- a sealant coating disposed on the outside of said duct.
5 more elements
Dependencies are inferred from the claim text.