Various implementations of grounding clamps and torque-controlled fasteners are disclosed. The grounding clamps may be used to attach grounding conductors to various structures, such as pipes, conduit, grounding rods etc. The torque-controlled fasteners may use various techniques to control the amount of torque applied to the fasteners used with the grounding clamps described herein.

Disclosed are a jumper cable device and a jump start system. The jumper cable device includes a main body, and an input port, a first clamp and a second clamp connected to the main body, wherein the input port is configured to be connected with an external startup power source, and the first and second clamps are configured to be connected to a battery of a load, wherein the main body includes a housing and a control apparatus received within the housing, and the control apparatus is connected in circuit between the input port and the first and second clamps, and the input port is configured as a first connector, and wherein the first connector is connectable to a second connector of the startup power source in two directions.

Disclosed are a jumper cable device and a jump start system. The jumper cable device includes a main body, and an input port, a first clamp and a second clamp connected to the main body, wherein the input port is configured to be connected with an external startup power source, and the first and second clamps are configured to be connected to a battery of a load, wherein the main body includes a housing and a control apparatus received within the housing, and the control apparatus is connected in circuit between the input port and the first and second clamps, and the input port is configured as a first connector, and wherein the first connector is connectable to a second connector of the startup power source in two directions.

A clamp for providing an electrical connection to a battery includes a first arm, a second arm, a joint member, a first pivotable connection, and a second pivotable connection. The first arm includes a proximal end, a distal end, and an electrically conductive member at the distal end. The second arm includes a proximal end and a distal end. The first pivotable connection is between the joint member and the first arm, and defines a first axis, about which the first arm rotates relative to the joint member. The second pivotable connection is between the joint member and the second arm, and defines a second axis, about which the second arm rotates relative to the joint member. The first and second axes are displaced from each other in a direction that is perpendicular to the first axis.

A clamp for providing an electrical connection to a battery includes a first arm, a second arm, a joint member, a first pivotable connection, and a second pivotable connection. The first arm includes a proximal end, a distal end, and an electrically conductive member at the distal end. The second arm includes a proximal end and a distal end. The first pivotable connection is between the joint member and the first arm, and defines a first axis, about which the first arm rotates relative to the joint member. The second pivotable connection is between the joint member and the second arm, and defines a second axis, about which the second arm rotates relative to the joint member. The first and second axes are displaced from each other in a direction that is perpendicular to the first axis.

There is disclosed a coupling device for operations on live elements to attain equipotential conditions. The device comprises two conductive jaws connected to a preferably nonconductive handle. The jaws are adapted to be switched between a closed configuration, in which they are in mutual contact and surround an area adapted to receive a live element, and an open configuration in which the contact portions of the two jaws are spaced apart from each other. The two jaws have respective entry tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the entry tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member. The two jaws have respective exit tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the exit tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member.

There is disclosed a coupling device for operations on live elements to attain equipotential conditions. The device comprises two conductive jaws connected to a preferably nonconductive handle. The jaws are adapted to be switched between a closed configuration, in which they are in mutual contact and surround an area adapted to receive a live element, and an open configuration in which the contact portions of the two jaws are spaced apart from each other. The two jaws have respective entry tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the entry tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member. The two jaws have respective exit tapering portions adjacent to the contact portions and mutually converging to cause the contact portions to move apart from each other when the live element is pressed against the exit tapering portions, thereby causing the jaws to switch from the closed configuration to the open configuration against the action of an elastic member.

A multi-use tool of small form factor such as can be used for at least clipping an object, clipping to an object, retaining another object. Additional embodiments can include magnetic mounting and/or task lighting. A plurality of such tools could be used for trail marking by using a plurality clipped, mounted, or even dropped along a path. The multi-use tool with a light source can include illumination or trail marking plus different mounting features. One is a clamp. Another is a magnetic mount. All these features can be integrated into a single disposable assembly.

A multi-use tool of small form factor such as can be used for at least clipping an object, clipping to an object, retaining another object. Additional embodiments can include magnetic mounting and/or task lighting. A plurality of such tools could be used for trail marking by using a plurality clipped, mounted, or even dropped along a path. The multi-use tool with a light source can include illumination or trail marking plus different mounting features. One is a clamp. Another is a magnetic mount. All these features can be integrated into a single disposable assembly.

The present invention relates to a battery system including a battery module configured to include a plurality of rechargeable battery cells, a housing configured to house the battery module, a printed circuit board disposed on the battery module to include a first surface that faces the battery module and a second surface that is opposite to the first surface, and a connector configured to connect the printed circuit board and an external electrical component, wherein the printed circuit board includes a plurality of bent terminal portions disposed on the second surface, and the connector includes a plurality of metal clamps that are respectively connected to the plurality of bent terminal portions of the printed circuit board. In the battery system of the present invention, the connection between the connector and the printed circuit board can be realized without soldering wires.