Patent ID: 7878730
Filing Date: 2011-02-01
Classification: E04C,Y10T

Abstract:
1. A rebar coupling sleeve apparatus comprising: a rigid contiguity defining a longitudinal axis, and having two ends, an opening at each of said ends and a chamber extending into the contiguity from each opening for reception of an end portion of rebar; said chambers being defined by interior walls of said rigid contiguity and a fluid impervious barrier established as part of said contiguity to define an end of each of said two chambers within said contiguity, said chambers being fluidically non-communicative with each other; end portions of rebar established in said two fluidically non-communicative chambers, said rebar having rebar deformations defining a largest rebar outer diameter; adhesive established between said interior walls of said rigid contiguity and said end portions of said rebar; two fluid outlet ports, each associated with a different one of said chambers, and each enabling flow of adhesive from its associated chamber to an environment external of said rigid contiguity when the end portions of rebar are inserted into the chambers; and interior wall deformations of said interior walls defined by peaks and valleys, wherein said peaks define a smallest interior wall diameter of said interior walls, said smallest interior wall diameter being larger than said largest rebar outer diameter such that said different end portions of said rebar are capable of being inserted a substantial distance into said two chambers manually, without rotation of said different end portions of said rebar, and are immediately removable from said two chambers manually, without rotation of said different end portions of said rebar.