Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Headed fastener element with nut – washer – securing means or cap – Headed bolt or screw with threads and complementary nut
Patent
1988-10-26
1990-03-13
Lindsey, Rodney M.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Headed fastener element with nut, washer, securing means or cap
Headed bolt or screw with threads and complementary nut
411533, 411396, 52410, 52512, F16B 4300
Patent
active
049079271
ABSTRACT:
A locking plate which is adapted for fastening insulation to a roof deck employs a locking grommet which snaps into the roofing plate and seats the head of the fastener. The locking grommet locks the fastener to the plate and maintains a constant fixed relationship at all times between the fastener head and the locking plate thereby preventing the head from popping up above the plate.
REFERENCES:
patent: 4630984 (1986-12-01), Reinwall et al.
patent: 4663910 (1987-05-01), Hasan
patent: 4712959 (1987-12-01), Hasan
patent: 4757661 (1988-07-01), Hasan
patent: 4763456 (1988-08-01), Giannuzzi
patent: 4780039 (1988-10-01), Hartman
patent: 4781503 (1988-11-01), Bogel
Lindsey Rodney M.
Olympic Manufacturing Group, Inc.
Saether F.
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