Extension bar with built-in light
OwnerChin-Shun Chenginventor
Life of this patent
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Abstract
An extension bar with built-in light includes an elongate body having an open first end and an engaging recess in a second end of the elongate body. A switch member with a first conductive member extends through a transverse hole of the elongate body. A carrier is received in the engaging recess and a second conductive member is connected to the carrier. A power supply unit and a light bulb are received in the passage. The first end of the second conductive member is moved to contact the power supply unit to activate the light bulb when a conductive hand tool is inserted into the engaging recess. The light bulb is also activated when rotating the switch member to contact directly the first conductive member, the second conductive member and the power supply unit.
Claims15
An extension bar with built-in light, comprising:
- an elongate body made by conductive material and having a first end and an engaging recess defined in a second end of the elongate body, a transverse hole defined through the elongate body and communicating with the engaging recess, a passage defined axially through the elongate body and communicating with the engaging recess and defining an opening in the first end of the elongate body;
- a switch member made by non-conductive material and extending through the transverse hole and a first conductive member connected to the switch member, the first conductive member exposed on an outer surface of the switch member and in contact with an inner periphery of the transverse hole;
- a carrier made by non-conductive material and received in the engaging recess, a second conductive member connected to the carrier and having a first end and a second end, the first end extending to a first end of the carrier and the second end located at a second end of the carrier, a gap defined between the second conductive member and the elongate body, and
- a power supply unit and a light bulb received in the passage, the power supply unit having a first end facing the first end of the carrier and a second end of the power supply unit facing a first end of the light bulb, the first end of the light bulb made by conductive material and being in contact with an inner periphery of the passage, a second end of the light bulb facing the opening in the first end of the elongate body.
Dependencies are inferred from the claim text.