Combined elastic frame and mold block for fireproof feed-through of electric cables or the like

- AB Lyckeaborgs Bruk
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Description

FIG. 1 is a perspective view of a combined elastic frame and mold block for fireproof feed-through of electric cables or the like, showing my new design;

FIG. 2 is a top perspective view but from the rear thereof; and

FIG. 3 is a bottom perspective view from the same side as FIG. 2.

Referenced Cited
U.S. Patent Documents
1524146 January 1925 Murray
3885296 May 1975 Stout
4010581 March 8, 1977 Keturi et al.
4050205 September 27, 1977 Ligda
Patent History
Patent number: D249559
Type: Grant
Filed: Dec 21, 1976
Date of Patent: Sep 19, 1978
Assignee: AB Lyckeaborgs Bruk (Karlskrona)
Inventor: Erik Mikael Blomqvist (Karlskrona)
Primary Examiner: A. Hugo Word
Attorney: Irvin S. Thompson
Application Number: 5/757,223
Classifications
Current U.S. Class: Prefabricated Unit (D25/35); D25/91
International Classification: D2502;