Expansion dowell with circumferentially extending protrusions

Details Expansion dowell with circumferentially extending protrusions Expansion dowell with circumferentially extending protrusions

1976-02-23

1976-10-19

Shedd, Wayne L.

Joints and connections

Interfitted members with external bridging piece

403297, 52585, 52753E, F16B 1306

Patent

active

039864294

ABSTRACT:
An expansion dowel includes an axially extending sleeve with an axially extending slot in the sleeve. The sleeve has protrusions extending generally circumferentially around and outwardly from the outer surface of the sleeve. At least some of the protrusions are formed each about a central axis extending at an acute angle to the axis of the sleeve. Adjacent pairs of the protrusions are located in planes which intersect on one side of the axis of the sleeve.

REFERENCES:
patent: 1138219 (1915-05-01), Hottenroth
patent: 1296342 (1919-03-01), Tozzi
patent: 1817775 (1931-08-01), Sipe
patent: 1934560 (1933-11-01), Rawlings
patent: 2989788 (1961-06-01), Kessler
patent: 3019460 (1962-02-01), Corckran
patent: 3352191 (1967-11-01), Crawford
patent: 3405592 (1968-10-01), Blodee
patent: 3765295 (1973-10-01), Ptak
patent: 3767233 (1973-10-01), Hodge

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