Contractible guide for studs

Details Contractible guide for studs Contractible guide for studs

1975-03-07

1976-09-07

Frazier, Roy D.

Elongated-member-driving apparatus

With means to head member

Heading tool extends within hollow portion of member

227 9, B25D 1700

Patent

active

039787591

ABSTRACT:
A resilient, axially slotted sleeve in the form of a split collar is removably mounted on the trailing threaded end portion of a fastener to be driven into hard material such as steel or concrete. The sleeve preferably includes compressible peripheral projections for temporarily retaining the fastener when loaded in the muzzle of a driving tool. Having aided in guiding the fastener during driving and protected its threads from deformation and/or clogging, the sleeve is thereafter strippable conveniently by radial peeling movement from the driven fastener to enable a nut or other threaded element to be secured thereto.

REFERENCES:
patent: 2761348 (1956-09-01), Williams et al.
patent: 3129429 (1964-04-01), Hilti
patent: 3289522 (1966-12-01), Bell
patent: 3494018 (1970-02-01), Helderman et al.

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