Joints and connections – Branched – Three or more radiating members
Patent
1988-01-25
1990-02-13
Kundrat, Andrew V.
Joints and connections
Branched
Three or more radiating members
403178, 403217, 52488, 52665, 411230, 411275, 411936, F16D 104, F16B 704
Patent
active
049001795
ABSTRACT:
The mounting cross-piece or node assembly serves for the leak-tight connection of the cut ends of profile sections with one another. These profile sections are provided with an upper lengthwise extending opening and thus form a support or carrier construction or framework in the form of a grid or grid structure suspended at the ceiling of a room, especially a clean room. Filter frames and clean room filters can be mounted in gas-tight fashion in the grid structure. The mounting cross-piece assembly comprises at the cut surfaces of the profile sections to be interconnected and at the sides of the mounting cross-piece confronting such cut surfaces connection elements which can be secured in both of these components. Each of these connection elements is structured such that after insertion into a profile section through the lengthwise opening of the latter it can be frictionally or force-lockingly connected therewith and also can be released from above therefrom at the finished installed grid or grid structure, so that the relevant profile section and, if desired, also a mounting cross-piece can be removed from the support carrier construction and, if desired, again remounted therein, without the necessity of cutting a profile section or destroying the mounting cross-piece or the remaining support construction.
REFERENCES:
patent: 1631819 (1927-06-01), Ivory
patent: 3261625 (1966-07-01), Cripe
patent: 3429601 (1969-02-01), Bremers
patent: 3542407 (1970-11-01), Brown
patent: 3742674 (1973-07-01), Lang
patent: 3901613 (1975-08-01), Andersson
patent: 4678487 (1987-07-01), Caldwell, Jr. et al.
Luwa, Clean Room Technology, Fundamental Principles and Applications, 1987.
Kundrat Andrew V.
Luwa AG
Olsen Arlen L.
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