1975-11-18
1977-05-03
Frazier, Roy D.
85 69, 85 75, F16B 1306
Patent
active
040207358
ABSTRACT:
There is provided an expansion bolt having a shank on which is arranged a primary cone and a secondary cone intended for expanding a sleeve encircling said cones subsequent to mounting the bolt in a hole intended therefor. The sleeve is divided into a number of parallel sleeve segments which when subjected to pressure by cone movement move radially outwards to form separate bolt clamping members. The shank has arranged thereon a cylindrical stop member against one end of which the primary cone engages. At the other end of the stop member, means are provided for connecting a load carrying device to the bolt. The primary cone is arranged for free rotation on the shank and has a largest outer diameter which is at least equal to the largest outer diameter of the stop member.
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patent: 3813986 (1974-06-01), McVittie
Frazier Roy D.
Herbacks Industrikonsult
Holko Thomas J.
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