Patent · US Expired

Air filter

US4470834A · kind A · utility

11Cited by

6References

4Claims

0Family size

Assignee

Grabber Enterprises · US

Inventors

Guy C. Fasanaro · Benicia, US
Kenneth B. Taylor · Birmingham, US
Gerald J. Frades · Oakley, US

Key dates

Filing date	Dec 2, 1982
Grant date	Sep 11, 1984
Priority date	—
Expiry date	Dec 2, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S55/06
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An air filter for use with wood or coal stoves of the type having a plenum surrounding the firebox. The air filter includes a porous framework in the shape of a C-shaped channel which houses a filter pad. The outer and inner surfaces of the framework are porous and substantially open. The framework is preferably of a relatively stiff, but deformable, open weave material bounded along its edges by a circumferential frame. The inner surface defines an access opening through which the filter pad can be inserted. The air filter is sized to cover a recirculating air inlet of the stove. Magnetic strips allow the air filter to be easily and quickly mounted to the stove without modification.

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