초록 ▼

A one piece framework for holding the filter media of an air filter includes a pair of end walls integrally connected to a pair of frame members by a living hinge so that they may be pivotally moved between an assembled and unassembled position. A pair of side walls are integrally connected to the f

A one piece framework for holding the filter media of an air filter includes a pair of end walls integrally connected to a pair of frame members by a living hinge so that they may be pivotally moved between an assembled and unassembled position. A pair of side walls are integrally connected to the frame members by a living hinge only at their outermost ends so that they, too, may be pivotally moved between their assembled and unassembled position. The side walls and end walls are provided with a projection and a projection receiving latch that locks the end walls and side walls in their assembled state.

대표청구항 ▼

A one piece framework for holding the filter media of an air filter, said framework comprising: a first end wall integrally connected to a first frame member by a living hinge so that said first end wall may be pivotally moved between an assembled and unassembled position, a second end wall integral

A one piece framework for holding the filter media of an air filter, said framework comprising: a first end wall integrally connected to a first frame member by a living hinge so that said first end wall may be pivotally moved between an assembled and unassembled position, a second end wall integrally connected to a second frame member by a living hinge so that said second end wall may be pivotally moved between an assembled and unassembled position, a first side wall integrally connected at its outermost ends to said first and second frame members by a living hinge so that said first side wall may be pivotally moved between an assembled and unassembled position, a second side wall integrally connected at its outermost ends to said first and second frame members by a living hinge so that said second side wall may be pivotally moved between an assembled and unassembled position, said side walls and end walls defining a substantially rectangular opening when in said assembled position, and each of either of said side walls or end walls provided with a projection on its outer surface and each of the other of said side walls or end walls provided with a tab-like latch pivoting independently in hinged fashion with respect thereto and having an opening that frictionally surrounds said projection in a snap-fit and holds said side wall to said end wall in an assembled state.