Modular frame for defining and profiling the edges of wells, can

Details Modular frame for defining and profiling the edges of wells, can Modular frame for defining and profiling the edges of wells, can

1991-10-18

1994-01-18

Friedman, Carl D.

Static structures (e.g., buildings)

Earth-supported coping or edging

52 21, 52593, 527161, E04C 238

Patent

active

052790835

ABSTRACT:
This invention relates to a modular frame which is made up of a suitable plastic material and is capable of giving the correct L-shaped profile to the upper edges of wells or of canalizations or of openings in general and is prepared so as to give the possibility of anchoring the same strongly to the cement mortar employed for its installation.

REFERENCES:
patent: 609940 (1898-08-01), Koehler
patent: 2178282 (1939-10-01), Keary
patent: 4299070 (1981-11-01), Oltmanns et al.
patent: 4708898 (1987-11-01), Gommier et al.
patent: 5009047 (1991-04-01), Olding
patent: 5114270 (1992-05-01), Riddle

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