Grid tee for suspension ceilings or the like

Static structures (e.g. – buildings) – Machine or implement

Patent

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Details

52484, E04B 552

Patent

active

045206090

ABSTRACT:
Grid tees for suspension ceilings are disclosed in which a cross section is provided concentrating material at the two extremities of the grid tees. Such grid tee sections are also formed to provide a shear center which is centrally located substantially along the web section of the tee. In some embodiments, a single strip is formed to provide three laterally extending layers adjacent to the upper extremity of the bulb, and in another embodiment a single strip of material is formed to concentrate material on one side of the web at the bulb extremity and on the other side of the web at the flange extremity so as to balance the section and locate the shear center along the web plane.

REFERENCES:
patent: 991603 (1911-05-01), Brooks
patent: 3193063 (1965-07-01), Brown et al.
patent: 3207057 (1965-09-01), Brown et al.
patent: 3221466 (1965-12-01), Downing, Jr. et al.
patent: 3221846 (1965-12-01), Brown et al.
patent: 3369332 (1968-02-01), Harlan
patent: 3501185 (1970-03-01), Brown et al.
patent: 3778947 (1973-12-01), Sauer
patent: 3845594 (1974-11-01), Butts et al.
patent: 4019300 (1977-04-01), Sauer et al.
patent: 4206578 (1980-06-01), Mieyal
"Heavy Duty Main Tee"; 3-6-64, Donn Products, Inc., Westlake, Ohio.

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