Electrical trench assembly

Details Electrical trench assembly Electrical trench assembly

1987-04-27

1989-02-21

Friedman, Carl D.

Static structures (e.g., buildings)

With lifting or handling means for primary component or...

Position adjusting means; e.g., leveling

254104, E04D 1500

Patent

active

048053589

ABSTRACT:
A trench assembly usable in floor structures of the type requiring one inch of concrete fill over the crests of metal cellular flooring. The trench assembly includes opposite sides and one or more end-abutted cover plates spanning the distance between and supported by the opposite sides. Each side comprises a side rail, a base member, and horizontally displaceable adjustment means, in the form of wedge means, for vertically displacing the side rail relative to the base member. The side rail, the base member and the adjustment means have a combined height of about one inch (2.54 cm) and are capable of a vertical adjustment of one-half inch (1.27 cm).

REFERENCES:
patent: 875775 (1908-01-01), Burhorn
patent: 2123484 (1938-07-01), Mafera
patent: 2164615 (1939-07-01), Mafera
patent: 2524961 (1950-10-01), Cramer, Jr.
patent: 2539703 (1951-01-01), Sato
patent: 3074208 (1963-01-01), Seidel
patent: 3084480 (1963-04-01), Fork
patent: 3166633 (1965-01-01), Guzan, Jr. et al.
patent: 3530627 (1970-09-01), Carter et al.
patent: 3545150 (1970-12-01), Butler

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