Joints and connections – Member ends joined by inserted section – Section threaded to member
Patent
1991-06-20
1992-06-30
Kundrat, Andrew V.
Joints and connections
Member ends joined by inserted section
Section threaded to member
403292, 403 13, F16B 700
Patent
active
051257602
ABSTRACT:
A method and structure for joining two elongate objects together end-to-end includes a first object having an end formed with an annular groove, a second object having an end formed with an annular ridge dimensioned to fit snugly in the annular groove of the first object, and a double-ended screw, one end of which is screwed into the first object at a point spaced equally from the various circumferential sections of the group, and the other end of which is screwed into the second object at a point spaced equally from the various circumferential sections of the ridge to thereby join and hold the first and second objects together with the ridge fitted in the groove.
REFERENCES:
patent: 183358 (1876-10-01), Wright
patent: 970172 (1910-09-01), Bloom et al.
patent: 1049624 (1913-01-01), Viertel
patent: 2935767 (1960-05-01), Naegeli
patent: 3318621 (1967-05-01), Hawley
patent: 4067656 (1978-01-01), Dennis
Challis Stairways, Inc.
Kundrat Andrew V.
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