Patent attributes
A tool (10) for rotating a screw-on oil filter cartridge, the tool comprising a driving member (28, 28b); gripping jaws (12a, 12b) movable in relation to each other for gripping an oil filter cartridge; a guide arrangement (13, 14a, 14b) for guiding the gripping jaws; means (16a, 16b) for biasing the gripping jaws towards each other; and a driving mechanism (28, 28c, 24, 22a, 22b, 20a, 20b, 21a, 21b) coupled to the driving (28b) member and gripping jaws (12a, 12b) for converting rotation into movement of the gripping jaws towards each other, into engagement with an oil filter cartridge and applying either screwing or unscrewing torque thereto. The tool comprises: a locking mechanism (30, 32, 28, 24) for releasably locking the gripping jaws (12a, 12b) at a pre-determined distance from each other; and a release actuator (28a) for unlocking the locking mechanism and releasing of the gripping jaws.
