Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Separate head element
Patent
1991-12-09
1993-07-13
Cuomo, Peter M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Externally threaded fastener element, e.g., bolt, screw, etc.
Separate head element
411 82, 411401, 248 58, F16B 2300
Patent
active
052267709
ABSTRACT:
A hanger nut assembly for attachment to a concrete wall form so as to embed a hanger nut of the assembly in a wall being constructed. A headless screw attaches the nut in abutment with the wall form and is readily removable to facilitate form stripping. A pipe hanger rod is subsequently engageable with the wall installed nut after wall completion.
REFERENCES:
patent: 941714 (1909-11-01), Jenckes
patent: 1072361 (1913-09-01), Rickman
patent: 2485280 (1949-10-01), Grace
patent: 3044584 (1962-07-01), Thompson
patent: 3099108 (1963-07-01), Kalkbrenner
patent: 3329057 (1967-07-01), Salz
patent: 4211048 (1980-07-01), Naka
patent: 4440534 (1984-04-01), LaBate
patent: 4652193 (1987-03-01), Hibbs
patent: 4770584 (1988-09-01), Vinciguerra
patent: 4822223 (1989-04-01), Williams
Cuomo Peter M.
Givnan, Jr. James D.
Redman Jerry
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