Method for assembling stamp for ground bonding strap

Patent metadata

Field	Value
Publication number	US-9352374-B2
Application number	US-201414288013-A
Country	US
Kind code	B2
Filing date	May 27, 2014
Priority date	May 19, 2008
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

A system and method forming a ground bonding strap. A length of cable is measured to determine a segment of cable to stamp to form a pair of connectors. The segment is heated. The segment is stamped to form the pair of connectors. The pair of connectors defining an indentation and a pair of receptacles disposed through the cable. The pair of receptacles being each adjacent to and separated by an indentation. The indentations being positioned to allow a user to cut between the pair of connectors to form a ground bonding strap of a length selected by the user.

First claim

What is claimed is:

1. A method of assembling a stamp for a ground bonding strap, the method comprising:
providing a heating element operable to heat a segment of a cable for stamping at intervals of a length of the cable;
providing a die including a pair of teeth operable to stamp a first side of the segment to form a pair of connectors, the die including an indentation tooth for forming an indentation separating the pair of connectors;
providing a punch defining a pair of sockets operable to stamp a second side of the segment to form the pair of connectors, the sockets being operable to receive the teeth as pushed through the cable to form a pair of through holes within the pair of connectors, the punch including the indentation tooth for forming the indentation separating the pair of connectors;
providing a hydraulic press;
connecting the heating element to the hydraulic press; and
connecting the punch and the die to the hydraulic press, such that the hydraulic press, when operated, presses the punch and the die together at the heated segment of the cable to form the pair of connectors, the stamp forming a mold to shape the pair of connectors and define the indentation and the though holes.

2. The method according to claim 1 , further comprising:
providing a stop around, and connecting the stop to, the periphery of the die and the stamp, to ensure that the cable is stamped to a predefined depth, and wherein the stop defines the edges of the pair of connectors as stamped.

3. The method according to claim 1 , wherein the stamp is formed from a material with a substantially higher melting point than the cable, wherein the cable is a braided cable, and wherein the indentation teeth are triangularly shaped.

4. The method according to claim 1 , further comprising:
providing a stop defining a periphery of the stamp; and
connecting the stop to the stamp to prevent molten material from exiting the stamp.

5. The method according to claim 1 , wherein the heating element is at least one of flame-based, weld-based, or electrode-based.

6. The method according to claim 1 , wherein the indentation tooth has a shape comprising one of circular, triangular, square, or rectangular, such that the indentation separating the pair of connectors, when formed by the indentation tool, has corresponding circular, triangular, square, or rectangular shape.

7. The method according to claim 1 , wherein the pair of teeth each has a shape comprising one of circular, triangular, square, rectangular, or star, such that the pair of through holes, when formed by the pair of teeth, has corresponding circular, triangular, square, rectangular, or star shape.

8. The method according to claim 1 , wherein the die further includes a first pair of transition edges extending from the pair of teeth to a peripheral side edge of the die to form a first transition between each of the pair of connectors and an unstamped portion of the cable, wherein the punch further includes a second pair of transition edges extending from the pair of sockets to a peripheral side edge of the punch to form a second transition between each of the pair of connectors and the unstamped portion of the cable.

9. The method according to claim 1 , further comprising:
providing a plurality of rollers for feeding the cable toward the die and the punch for stamping the first and second sides of the segment;
providing at least one of a plurality of electrodes, a plurality of spools, and a plurality of pulleys for managing the cable while the cable is being fed by the plurality of rollers;
connecting the plurality of rollers to the hydraulic press; and
connecting the at least one of a plurality of electrodes, a plurality of spools, and a plurality of pulleys to the plurality of rollers.

Assignees

• Centurylink Ip Llc

Inventors

• Munn Matthew Aaron
• Klamm Doug

Classifications

• B21D22/022

  by heating the blank or stamping associated with heat treatment (C21D takes precedence) · CPC title

• H01R13/025

  formed by the conductors of a cable end · CPC title

• B26F1/14

  Punching tools; Punching dies · CPC title

• Y10T29/49826

  Assembling or joining · CPC title

• H01R11/12

  End pieces terminating in an eye, hook, or fork · CPC title