Static structures (e.g. – buildings) – With lifting or handling means for primary component or... – Position adjusting means; e.g. – leveling
Patent
1988-07-26
1989-07-25
Ridgill, Jr., James L.
Static structures (e.g., buildings)
With lifting or handling means for primary component or...
Position adjusting means; e.g., leveling
51221, E04B 543, E04B 548
Patent
active
048501620
ABSTRACT:
An elevated access floor, or pedestal floor wherein a two-cell duct element spans one or more support pedestals is disclosed. The duct element distributes two different services, such as high and low voltage wiring to various locations in the access floor area. A feeder unit having removable covers extends transversely of the duct element and serves to feed the wiring of the two services from central locations, such as a telephone closet and a power closet, to the duct elements.
REFERENCES:
patent: 2870623 (1959-01-01), Murray
patent: 2975559 (1961-03-01), Hedgren
patent: 3316680 (1967-05-01), Chrastek
patent: 3398933 (1968-08-01), Hardldson
patent: 3924370 (1975-12-01), Cauceglia et al.
patent: 4016357 (1977-04-01), Abrahamsen
patent: 4558544 (1985-12-01), Albrecht et al.
patent: 4656795 (1987-04-01), Albrecht et al.
H. H. Robertson Company
Manias G. E.
Ridgill, Jr. James L.
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