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E & J Demark, Inc. Patents
Assignee:
E & J Demark, Inc.
Address:
Wauseon, OH
No. of patents:
5
Patents:




Patent Number Title Of Patent Date Issued
6979207 Electrical connector December 27, 2005
An electrical connector for connecting a ground wire and a ground rod. The electrical connector having a metal body including a top and a cylindrical side wall. The body having a first internal wall defining a ground rod cavity and a second internal wall defining a ground wire cavity bei
6137049 Electrical ground connector assembly October 24, 2000
An electrical ground connector assembly for providing a fast, secure, moisture-resistant ground connection without using special tools. The electrical ground connector assembly includes a ground rod and a cap having an tapered rod chamber for receiving the ground rod. The cap also in
5864093 Electrical ground connector assembly January 26, 1999
An electrical ground connector assembly for providing a fast, secure, moisture-resistant ground connection without using special tools. The electrical ground connector assembly includes a ground rod and a cap having an tapered rod chamber for the ground rod. The cap also includes at
5188187 Electrical grounding rod driving bit February 23, 1993
The present invention comprises an electrical grounding rod driving tool for use with an externally powered hammer comprising a shaft portion for insertion into a tool receiving chuck of the hammer and a base portion extending outwardly from said shaft portion which receives and retains
4557409 Electrical grounding rod driving device December 10, 1985
The present invention is a double-headed hammer slidingly encompassing a ground rod driving shaft having a single anvil affixed thereto which can be selectively engaged by either hammer. The driving shaft has a recess in each end to receive the grounding rod, depending upon whether the a

 
 
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