Expandable anchor stud

Details Expandable anchor stud Expandable anchor stud

1974-06-14

1976-08-17

Britts, Ramon S.

85 87, F16B 1306

Patent

active

039747344

ABSTRACT:
An expandable anchor stud in which a threaded bolt or threaded rod carries two axially spaced, oppositely tapered expansion plugs which, when axially advanced against each other, cause the segments of a split stud shell positioned between the expansion plugs to expand radially, the two or three separate segments of the shell being radially retained against each other by a spring collar received inside a peripheral groove. In a novel production method, the shell segments are obtained from strip stock.

REFERENCES:
patent: 601553 (1898-03-01), Christensen
patent: 896756 (1908-08-01), Pleister
patent: 981382 (1911-01-01), Clements
patent: 1120367 (1914-12-01), Booraem et al.
patent: 1361836 (1920-12-01), Devlin
patent: 1639231 (1927-08-01), Ogden
patent: 1648420 (1927-11-01), Ogden et al.
patent: 3065659 (1962-11-01), Eriksson et al.
patent: 3373648 (1968-03-01), Pitzer
patent: 3837257 (1974-09-01), Fischer

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