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US 8,137,426 B2Granted
Filter mounts for a portable fan and methods for mounting a filter to a portable fan
AssigneeZipwall, LLC
InventorJeffrey P. Whittemore
Life of this patent
Estimating the term…
Abstract
A filter frame is removably attachable to a box fan. The filter frame is adapted for receiving a standard HVAC-style filter for removing contaminants from air flow induced by the fan. In this manner, a cost-effective means for filtering a flow of air is provided for residential and commercial settings. The filter frame is adaptable to a variety of standard box fan types of different styles and dimensions. The frame is configured to accommodate standard filters, such as those readily available from retail hardware stores and home centers.
Claims21
A filter frame, comprising:
- a first side channel including at least one first channel tab, the first side channel having a longitudinal axis;
- a second side channel including at least one second channel tab, the second side channel having a longitudinal axis;
- and
- at least one cross member diagonally coupled between the first side channel and the second channel,
- wherein the longitudinal axis of the first side channel is parallel to the longitudinal axis of the second side channel.
2 more elements
A filter frame, comprising:
- a frame body including a plurality of channel tabs and a lattice grate,
- wherein the plurality of channel tabs extend in an outward direction from a surface of the lattice grate.
Dependencies are inferred from the claim text.