Title: Watertight wall feedthrough for electrical ground

Abstract: An electrical wall feedthrough fitting is cast directly in a concrete wall and comprises an electrically conducting elongated member each of whose ends is formed with an outwardly open blind bore. An electrically insulating sleeve surrounds all but the ends of this member to prevent contact of the conductive member with the reinforcement in the wall. A terminal screw can be fitted into each of the bores for forming a good electrical connection. The middle part of a conducting member may be constituted as a flexible cable to allow the distance between the two ends to be varied or to allow the two ends to be offset relative to each other. A seal at each of the ends may be compressed to further increase the watertightness of the seal around such a fitting.

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Inventors: Hauff, Werner (7922 Herbrechtingen, DE, US)

Application Number: 886822
Filing Date: 1978-03-15
Publication_date: 1980-10-07
Assignee:
Primary Class(es): 439/92 52/220.8, 174/6, 439/502, 439/559, 439/724
Other Classes:
US Patent Ref:

3400247	Sep, 1968	Deacon	52/221.
3850501	Nov, 1974	Butterfield et al.	339/94.
3960427	Jun, 1976	Praget et al.	339/263.

Other Refs: 123568715188473897111028208

Mar, 1967	DE
Feb, 1968	FR
Jul, 1965	CH
May, 1966	GB

Primary Examiner: McGlynn, Joseph H.
Assistant Examiner:
Attorney: Ross; Karl F.