Expansion dowel with a setting control

Details Expansion dowel with a setting control Expansion dowel with a setting control

1977-08-04

1979-02-06

Britts, Ramon S.

85 74, F16B 1306, F16B 3102

Patent

active

041378164

ABSTRACT:
An expansion dowel consists of a sleeve, a tie rod extending through the sleeve with an end support on one end of the tie rod and an expanding body on the other end. The end support can be a bolt head or a nut. By applying torque to the end support the expanding body can be pulled into the sleeve causing it to expand. A jacket laterally encloses the end support in form-locking engagement. The jacket is formed of a destructible material, such as a plastic, which is demolished when a predetermined torque is applied through the jacket to the end support signalling that a certain anchoring force has been achieved.

REFERENCES:
patent: 1966414 (1934-07-01), Main
patent: 2824481 (1958-02-01), Johnson
patent: 3027796 (1962-04-01), Shewmon
patent: 3329058 (1967-07-01), Cumming

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