Electrical conductor wire feeding tube for fire wall lead-in

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Description

FIG. 1 is a perspective view of an electrical conductor wire feeding tube for fire wall lead-in showing our new design;

FIG. 2 is a perspective view from the opposite side thereof;

FIG. 3 is a side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D249223 September 5, 1978 Holden
D257211 October 7, 1980 Loof et al.
2258745 October 1941 Dewey et al.
2515724 July 1950 McCroskey
3005620 October 1961 Trunnell
4132665 January 2, 1979 Nelson
Foreign Patent Documents
1218534 January 1966 DEX
Patent History
Patent number: D275831
Type: Grant
Filed: Oct 14, 1981
Date of Patent: Oct 9, 1984
Assignee: Telefonaktiebolaget L M Ericsson (Stockholm)
Inventors: Bengt E. Legerius (Nykoping), Hans W. Siebert (Oxelosund)
Primary Examiner: Susan J. Lucas
Law Firm: Roberts, Spiecens & Cohen
Application Number: 6/311,235
Classifications
Current U.S. Class: D 8/14; D13/13; D13/24