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

- AB Lyckeaborgs Bruk
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 perspective view of the mold block for its embodiment;

FIG. 3 is a view similar to FIG. 1, but from a different angle;

FIG. 4 is a view similar to FIGS. 1 and 2, but showing the parts therein assembled;

FIG. 5 is a view of the structure shown in FIG. 4 but inverted and from the opposite side thereof; and

FIG. 6 is a view similar to FIG. 4, but with the structure inverted.

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: D249558
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: 5/757,222
Classifications
Current U.S. Class: Prefabricated Unit (D25/35); D25/91
International Classification: D2502;