Brushing – scrubbing – and general cleaning
Patent
1977-09-08
1978-10-31
Bonck, Rodney H.
Brushing, scrubbing, and general cleaning
151 4173, F16B 1500
Patent
active
041227522
ABSTRACT:
A fastener apparatus which can be formed by conventional punch press machinery and which is hardened so that the fastener may be driven into metallic structures such as structural steel beams and the like using a conventional hammer or a power operated nailing gun. The apparatus includes a flat body having a penetrating head at one end connected to the body by a reduced neck and such penetrating head is smaller in width than the width of the body. The portion of the body adjacent to the neck is provided with an overlying ledge which forces material into the area adjacent to the neck to form a mechanical lock which resists withdrawal and prevents rotation of the fastener within the material.
REFERENCES:
patent: D29283 (1898-08-01), Sweeny
patent: 723452 (1903-03-01), Estes
patent: 1946065 (1934-02-01), Dodge
patent: 2873447 (1959-02-01), Catlin et al.
patent: 3133579 (1964-05-01), Grimm et al.
patent: 3186284 (1965-06-01), Bennett
patent: 4004483 (1977-01-01), Hallock
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