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US 10,245,542 B2Granted
Foldable filter frame
OwnerJoseph Dean Knucklesinventor
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OwnerJoseph Dean Knucklesinventor
Estimating the term…
A foldable filter frame including a filter media and a rectangular support frame surrounding and secured to the filter media, having opposed side frame elements having a hingable joint formed near the midpoint that allows the support frame and a dirt-capturing surface of the filter media to fold along lateral line from a planar, extended position to a folded position. The joint includes a fold line in a dirtied-side attaching panel, and a cut formed through a base and a clean-side attaching panel, of the side frame elements, and a means for biasing the joint to the planar, extended position. The biasing means is a strip of elastic member, stapled to an inside surface of the clean-side attaching panel in a relaxed state, across the cut formed through the clean-side attaching panel. The frame can have Velcro-type fasteners in the corners to secure the frame in the folded position.
A foldable air filter including a filter media panel and a rectangular support frame surrounding and secured to the filter media panel, the frame including opposed side frame elements having a hinge joint formed near the midpoint that allows the support frame and a dirt-capturing surface of the filter media panel to fold along lateral line from a planar, extended position to a folded position, the hinge joint having a fold line in a dirtied-side attaching panel of the side frame elements, and a cut formed through a base and a clean-side attaching panel of the side frame elements, and further including a hinge locking means for temporarily securing the hinge joint in the planar, extended position, for insertion into a furnace return air duct.
A foldable air filter including a filter media panel and a rectangular support frame surrounding and secured to the filter media panel, the frame including opposed side frame elements having a hinge joint formed near the midpoint that allows the support frame and a dirt-capturing surface of the filter media panel to fold along lateral line from a planar, extended position to a folded position, the hinge joint including a fold line in a dirtied-side attaching panel of the side frame elements, and a cut formed through a base and a clean-side attaching panel of the side frame elements, and a means for biasing the hinge joint to the planar, extended position.
A foldable air filter that includes:
Dependencies are inferred from the claim text.