Clamping bracket for a grounding system
OwnerGeorge J. Franks, Jr.inventor
Life of this patent
Estimating the term…
Abstract
A clamping bracket connects an electrical wire to a lip of a grounded utility box so as to ground the wire. The bracket has U-shaped portions and a threaded stud which advances an annular abrading end surface with a center cone point into engagement with the lip when located between the U-shaped portions. The rear planar member of the U-shape is formed by a leaf spring which slants inwardly. The front planar member of the U-shape has side ribs which strengths the front planar member and space a threaded bore from the lip.
Claims17
A clamping bracket for mechanical and electrical connection to a metal plate, comprising:
- a front planar member having a threaded bore extending axially therethrough,
- a base member extending rearwardly from the front planar member,
- a brace planar member extending upwardly from the base member to create therebetween a generally U-shaped space for containing the metal plate, the planar members being slanted towards each other so that the axial distance between the front planar member and the brace planar member is closer at a top opening and wider at a bottom adjacent the base member,
- at least certain ones of the members being resiliently movable to increase the axial distance of the top opening,
- a threaded stud which engages the threaded bore and is rotatable to axially advance an abrading end surface of the stud into engagement with the metal plate and cause resilient movement of the certain ones of the members to thereby increase the axial distance at the top opening as the threaded stud is advanced to clamp the bracket to the metal plate, the abrading end surface of the threaded stud penetrating the outer surface of the metal plate to thereby electrically connect the metal plate to the bracket.
A clamping bracket for mechanical and electrical connection to a metal plate, comprising:
- a generally U-shaped plate having a front planar member containing a threaded bore, a base member at a bight section, and a rear planar member to create between the front and rear planar members a generally U-shaped space for containing the metal plate,
- a pair of side ribs spaced on the front planar surface and each extending rearwardly to an edge rib surface which abuts the metal plate when located within the generally U-shaped space, the pair of edge rib surfaces spacing the threaded bore of the front planar member away from the metal plate to create a gap therebetween, and
- a threaded stud rotatably movable within the threaded bore to move an abrading end surface of the stud axially through the gap and into engagement with the metal plate to urge the metal plate against the rear planar surface, the abrading end surface penetrating the outer surface of the metal plate to thereby electrically connect the threaded stud to the metal plate.
Dependencies are inferred from the claim text.