Wire Binding Screw For A Circuit Breaker
AssigneeSchneider Electric USA, Inc.
InventorRodney D. Raabe
Life of this patent
Estimating the term…
Abstract
A headless wire binding screw for use in a circuit breaker contains a slotted drive in combination with a Robertson drive. The slotted drive is for use with a slotted-type driver (such as a slotted screwdriver) and the Robertson drive is for use with a Robertson-type driver (such as a Robertson screwdriver). The screw has a body with a diameter of constant size along the entire length of the body. The screw also has an external thread that is formed along the entire length of the body.
Claims16
A headless wire binding screw for a circuit breaker, comprising:
- a body having a circular cross-section defined by an exterior diameter, the exterior diameter being of a constant size along the entire length of the body, the length of the body being defined by a top surface at a top end and a bottom surface at a bottom end;
- an internal multi-shape drive for receiving a drive tool at the top end of the body, the multi-shape drive including both a Robertson drive and an overlapping slotted drive, the Robertson drive being adapted for receiving a tip of a Robertson-type driver, the slotted drive being adapted for receiving a tip of a slotted-type driver;
- and
- an external thread along the entire length of the body including the top end in which the multi-shape drive is located.
A method for manufacturing a headless wire binding screw for a circuit breaker, the method comprising:
- providing a body having a circular cross-section defined by an exterior diameter, the exterior diameter being of a constant size along the entire length of the body, the length of the body being defined by a top surface at a top end and a bottom surface at a bottom end;
- forming an internal multi-shape drive for receiving a drive tool at the top end of the body, the multi-shape drive including both an internal Robertson drive and an overlapping slotted drive, the Robertson drive being adapted for receiving a tip of a Robertson-type driver, the slotted drive being adapted for receiving a tip of a slotted-type driver;
- and
- after the forming of the multi-shape drive, rolling an external thread along the entire length of the body including the top end in which the multi-shape drive is located.
A circuit breaker comprising:
- a circuit breaker housing for enclosing internal components;
- a wire connector for receiving a lead electrical wire;
- and
- a headless wire binding screw connected to the wire connector and having
- a body with an exterior diameter of a constant size along the entire length of the body,
- an internal multi-shape drive for receiving a drive tool at one end of the body, the multi-shape drive including an internal Robertson drive centered with and overlapping a slotted drive, and
- an external thread formed along the entire length of the body, wherein a thread height forms the exterior diameter of the body.
Dependencies are inferred from the claim text.