ELECTRIC TESTING DEVICE AND METHOD FOR HAND TOOLS HAVING TESTING MECHANISMS

摘要

The invention relates to a hand tool system having an electrical circuit testing indicator for use in a hand held tool used by technicians to determine electric circuit conditions. In a preferred embodiment, the indicator makes use of an electric circuit condition indicating means within a hand tool device having a plurality of bits and tool ends that, in use, will indicate information to determine the circuit condition (live circuit or not). Optionally, light, vibration, and audible indications may be provided to indicate the same information to a user.

主权项

1. A hand tool system comprising:
a handle having a first end and a second end; a plurality of integral double-ended tool bit members; a shank having a proximate end disposed in said first end of said handle and a distal end; and an electrical circuit test indicator comprising:
a housing having one or more contacts extending from a bottom end of said housing, said contacts being adapted for engaging corresponding contacts within said handle;an electrical circuit means for detecting the presence of electrical energy radiated from an external electrically conductive member when the contacts are proximate the external electrically conductive member even when in a non-contacting relation with the external electrically conductive member;one or more lights being coupled to said housing, said lights being lit in a manner indicating a state of the electrical circuit; andat least one power source coupled to said electrical circuit means, said contacts, and said one or more lights; wherein each of said test contacts extends through said bottom surface of said housing such that said contacts said corresponding contacts within said handle; wherein said shank comprises means for removably holding said plurality of integral double-ended tool bit members and comprising a unitary one-piece first cylindrical housing having oppositely disposed ends, a second unitary one-piece cylindrical housing having oppositely disposed ends for removably holding first integral double-ended tool bit members, said second housing being slidably received in one said end of the first housing, said first integral double-ended tool bit members being slidably received in said second housing ends, a third unitary one-piece cylindrical housing having oppositely disposed ends for removably holding second integral double-ended tool bit members, said third housing being slidably received in the other end of the first housing, said second integral double-ended tool bit members being slidably received in the third housing ends, wherein one tool bit member is operably disposed in the distal end of the shank.