Socket means for embedment in a concrete slab

Details Socket means for embedment in a concrete slab Socket means for embedment in a concrete slab

1980-07-15

1983-01-18

Bell, J. Karl

Static structures (e.g., buildings)

Assembled in situ-type anchor or tie

Socket type

52709, E04B 141

Patent

active

043686060

ABSTRACT:
A socket having a socket body which is accurate in position when in use. The body is provided with an internal blind bore having an open end and a closed end. The blind bore defines or has a portion defined by inner surfaces which converge in a direction toward the open end of the blind bore and diverge toward the closed end. This bore portion is spaced axially from the open end. Within this portion of the bore is disposed a locking element made of at least two segments that have an axial extent less than the length of the above-mentioned portion. The segments have outer side surfaces which are complementary with the converging inner surfaces of the portion of the blind bore. They are each provided with a thread and jointly define a bore of lesser diameter than the open end and accordingly of lesser diameter than an anchor bolt insertable axially into the socket body. When an anchor bolt having threads complementary to the threads of the segments the leading end of the bolt engages the segments and moves them axially within the socket body. As the segments move axially, they move outwardly radially and allow the bolt to fully enter between the segments and develop threading engagement. As the anchor bolt is moved axially outwardly, the segments move along the converging surfaces and clamp the bolt in position. The bolt can be removed by rotating it to unthread it.

REFERENCES:
patent: 1351112 (1920-08-01), Martin
patent: 1710422 (1929-04-01), Kehm
patent: 2020062 (1935-11-01), Jackson
patent: 2156639 (1939-05-01), Powell
patent: 3290851 (1966-12-01), Sherburne
patent: 3514911 (1970-06-01), Preradovich

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