Hydraulic tool for driving a pulling and/or pressing device, comprising a drive shaft that can be mounted to a screwdriver, wherein the drive shaft is operable to drive a hydraulic pump that pumps hydraulic fluid into the operating chamber of a hydraulic power piston. The hydraulic tool may in particular be configured as a riveting or punching attachment for a cordless screwdriver.

A tool for inserting and fastening a replacement injector sleeve in the cylinder head of a diesel engine. The tool is part of an injector sleeve tool kit which also includes an injector sleeve removal tool. The installation tool includes an expandable mandril which is inserted into the injector sleeve and expands a portion of the sleeve causing a press fit of the sleeve within the cylinder head. The sleeve removal tool includes a tap having a longitudinal body and a threaded cutting head at one end and a bolt having a head at the other end. An extraction nut is threaded onto the threaded shaft of the drive member followed by a bearing surface member such as a spacer. A hollow cylinder or support sleeve having an internal diameter greater than the injector sleeve to be removed and an external diameter less than the diameter of the sleeve bore includes a shoulder member.

A method of manufacturing a vehicle suspension component includes inserting a cover body into an aperture of a housing, the cover body being disposed about a central axis concentric with the aperture of the housing, the cover body having a convex side and a concave side and an outer perimeter disposed about the central axis, the cover body defining a threaded bore concentric with the central axis, and deforming the cover body into retaining engagement with the housing by pressing against the convex side until the cover body is at least partial deformed and the outer perimeter is expanded compared to a pre-deformed state of the cover body.

A secure electronic device with matching disassembling tool includes a housing and an electronic element. The disassembling tool includes a securing member, a first elastic disassembling member, and a second disassembling member. The securing member is mounted to the housing. The securing member includes an elastic locking block locked to the electronic element. The first elastic disassembling member can reach and be inserted into the securing member. The second disassembling member is inserted in the first disassembling member. When the second disassembling member is then rotated, the first disassembling member is deformed to press the elastic locking block, which unlocks from the electronic element.

A secure electronic device with matching disassembling tool includes a housing and an electronic element. The disassembling tool includes a securing member, a first elastic disassembling member, and a second disassembling member. The securing member is mounted to the housing. The securing member includes an elastic locking block locked to the electronic element. The first elastic disassembling member can reach and be inserted into the securing member. The second disassembling member is inserted in the first disassembling member. When the second disassembling member is then rotated, the first disassembling member is deformed to press the elastic locking block, which unlocks from the electronic element.

A bearing closure device has a externally threaded ring that can be slid onto a roll journal. One stop close to the roll barrel and one stop away from the roll barrel are provided on the roll journal in order to limit the axial movement of the threaded ring. A ring nut with an internal thread is screwed onto the external thread of the threaded ring. To facilitate safe screwing on and unscrewing of the ring nut and to keep screws pressure-free during the operation of the bearing a pressure ring is mounted between the bearing and the threaded ring in an axially displaceable manner. In addition, a plurality of screws can be screwed into axial threaded bores in the threaded ring in order to press against the pressure ring in the axial direction. Finally, the ring nut can be screwed or adjusted against the pressure ring.

A bearing closure device has a externally threaded ring that can be slid onto a roll journal. One stop close to the roll barrel and one stop away from the roll barrel are provided on the roll journal in order to limit the axial movement of the threaded ring. A ring nut with an internal thread is screwed onto the external thread of the threaded ring. To facilitate safe screwing on and unscrewing of the ring nut and to keep screws pressure-free during the operation of the bearing a pressure ring is mounted between the bearing and the threaded ring in an axially displaceable manner. In addition, a plurality of screws can be screwed into axial threaded bores in the threaded ring in order to press against the pressure ring in the axial direction. Finally, the ring nut can be screwed or adjusted against the pressure ring.

A tool has a biased piston, a plunger, and a base contained in a tool body. The plunger is positioned between the biased piston and the base and in contact with the base. A tool head is fixed to the base and extends outside of the tool body. The tool body is configured to be movable along a longitudinal axis relative to the base and plunger to move the plunger to load the piston when a load is applied to the tool body along a first load path. The tool body, the base, and the biased piston are configured to align the plunger with the longitudinal axis only when the load applied along the first load path is at least a first predetermined load, and thereby release stored energy of the piston as a dynamic load applied to the tool head along a second load path.

A tool has a biased piston, a plunger, and a base contained in a tool body. The plunger is positioned between the biased piston and the base and in contact with the base. A tool head is fixed to the base and extends outside of the tool body. The tool body is configured to be movable along a longitudinal axis relative to the base and plunger to move the plunger to load the piston when a load is applied to the tool body along a first load path. The tool body, the base, and the biased piston are configured to align the plunger with the longitudinal axis only when the load applied along the first load path is at least a first predetermined load, and thereby release stored energy of the piston as a dynamic load applied to the tool head along a second load path.

A tool for retracting pistons into cylinder bores is disclosed. Plates of the present invention are locked by a key to prevent the plates from spinning independently. Additionally, the key acts as an internal stop, providing a point beyond which the plates cannot be further spread or separated from one another. Additionally, a spring is provided to prevent the thread from turning independently from the plates.