초록 ▼

An expandable filter cartridge for installation in the filter housing of a vehicle includes a rectangular frame having top and bottom legs and side legs. The side legs of the frame are extendible and retractable in length to configure the frame between a relatively compact size for insertion into th

An expandable filter cartridge for installation in the filter housing of a vehicle includes a rectangular frame having top and bottom legs and side legs. The side legs of the frame are extendible and retractable in length to configure the frame between a relatively compact size for insertion into the filter housing and a relatively expansive size for spanning the interior dimensions of the filter housing. The filter cartridge is installed by being inserted while in its compact configuration into a slot in the filter housing and, once inside, expanded to span the interior dimensions of the housing.

대표청구항 ▼

[ We claim:] [1.] An expandable filter cartridge comprising a frame having top and bottom legs, each said top leg and said bottom leg having a first and second end, and each of said ends being joined by respective side legs, each of said side legs being formed of a lower leg segment and an upper leg

[ We claim:] [1.] An expandable filter cartridge comprising a frame having top and bottom legs, each said top leg and said bottom leg having a first and second end, and each of said ends being joined by respective side legs, each of said side legs being formed of a lower leg segment and an upper leg segment that are slidably secured together so that said side legs are extended and retracted in length to expand said frame to a relatively expansive configuration and to contract said frame to a relatively compact configuration, means connected to said frame for selectively extending and retracting said side legs, and a sheet of expandable filter media attached to said top and bottom legs of and spanning said frame, whereby said frame, when in said compact configuration, is inserted into a filter housing and expanded to said expansive configuration to span the interior of the housing.