Patent ID: 6409154
Filing Date: 2002-06-25
Classification: H02G

Abstract:
A fish tape feed mechanism for feeding and retracting an electrical feed tape through sections of electrical conduit; the fish tape feed mechanism comprising:a housing: an electrically powered motor drive assembly positioned within said housing and controlled by a user activated switch for controlling the direction and speed of said electrically powered motor drive assembly; a fish tape drive assembly including a pair of non-electrically conductive idler wheels and a non-electrically conductive drive wheel that are configurable to frictionally grip and move a section of a fish tape by an adjustment mechanism for adjusting a gripping traction force between said fish tape drive assembly and a section of the fish tape; and a drive mechanism mechanically linked between said electrically powered motor drive assembly and said non-electrically conductive drive wheel of said fish tape drive assembly and having a feed tape distance display including a microprocessor circuit programmed to utilize data input from an optical encoder mechanically linked to said fish tape drive assembly such that data from said optical encoder is processed into a fish tape feed distance by said microprocessor which then generates and transmits a set of display signals to a visual display device for continuously displaying the length of feed tape fed through said fish tape drive assembly; a non-electrically conductive idler wheel of the pair of non-electrically conductive idler wheels of the fish tape drive assembly being mounted onto a pivoting bracket to allow for the lateral insertion of a section of feed tape between the one non-electrically conductive idler wheel and the non-electrically conductive drive wheel; said pivoting bracket being pivotable into an open position to allow for lateral insertion of a section of the feed tape between said one of said pair of non-electrically conductive idler wheels and said non-electrically conductive drive wheel and pivoted and lockable into a closed operational position for use.