Static structures (e.g. – buildings) – Installed screed or unit with specified feature retaining... – Composite – including pierceable nonmetal component
Patent
1978-01-05
1979-07-03
Perham, Alfred C.
Static structures (e.g., buildings)
Installed screed or unit with specified feature retaining...
Composite, including pierceable nonmetal component
52729, E04C 3292, E04C 304
Patent
active
041596048
ABSTRACT:
The disclosure relates to the type of joist having an upper chord in the form of an inverted top-hat channel into which an insert is forced. The inner faces of the side walls of the channel converge towards one another at the top of the channel and the width of the bottom of the channel is greater than the width of the bottom of the insert.
REFERENCES:
patent: 1453996 (1923-05-01), Riddle
patent: 2387432 (1945-10-01), Du Laney
patent: 3787020 (1974-01-01), Avery
Anthes Equipment Limited
Casella Anthony J.
Perham Alfred C.
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