초록 ▼

A closed filter container containing at least one filter cartridge mounted on a plate, whose periphery is clamped between the lid and rim of said container electrically isolating said cartridge and plate from the walls including the lid of the container as disclosed in applicant Harms\prior U.S. Pat

A closed filter container containing at least one filter cartridge mounted on a plate, whose periphery is clamped between the lid and rim of said container electrically isolating said cartridge and plate from the walls including the lid of the container as disclosed in applicant Harms\prior U.S. Pat. No. 3,720,322. Mounted between the plate and a wall of the container is at least one electrically conducting resilient finger which maintains electrical contact across the gasket which isolates the plate and cartridges regardless of the flexing of the plate due to variations of pressure inside the container. The plate also is provided with three handle members to facilitate removal of the plate and cartridges from the container. The three handle members also act as legs to stably support the plate and cartridges during replacement of the cartridges. Furthermore, these handles have improved configurations for both ease in handling and strengthening.

대표청구항 ▼

In a filter having a closed chamber with a removable end wall and a plurality of electrically insulated electrically conductive metal parts relatively movable with respect to each other, wherein one of said metal parts is a removable support for the filter cartridges in said chamber, the improvement

In a filter having a closed chamber with a removable end wall and a plurality of electrically insulated electrically conductive metal parts relatively movable with respect to each other, wherein one of said metal parts is a removable support for the filter cartridges in said chamber, the improvement comprising: at least one resilient electrically conducting bridging contact means fixedly connected to one of said parts and scratchingly connected to another of said parts, which parts are otherwise electrically insulated with respect to each other, whereby said bridging contact is established when the filter is assembled and said contact is maintained regardless of any flexing of the parts relative to each other due to positive and negative pressures applied in the chamber during its operation and non-operation.