Joints and connections – Rod end to transverse side of member
Patent
1977-03-23
1978-01-24
Ridgill, Jr., James L.
Joints and connections
Rod end to transverse side of member
52664, E04C 242
Patent
active
040701255
ABSTRACT:
The invention is directed to a ceiling runner which has a generally U-shaped configuration. The runner has flanges to support ceiling boards. The side walls of the runner are formed with grooves which may be used to support the runner in position or define an isolated chamber within the body of the runner.
REFERENCES:
patent: 1074895 (1931-10-01), Rapp
patent: 3016997 (1962-01-01), Price
patent: 3633952 (1970-07-01), Nikolaus
patent: 3835614 (1974-09-01), Downing
Armstrong Cork Company
Ridgill, Jr. James L.
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