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US 2017/0152660 A1Published application
Modified Pocket Former
OwnerFelix Sorkininventor
Life of this patent
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Abstract
A pocket former includes a pocket former body and a keyway former. The pocket former is adapted to form a void in a concrete member allowing access to the stressing end of a post-tensioning tendon. The keyway former is adapted to form a keyway in the concrete to allow grout to be more securely retained in the void.
Claims22
A pocket former comprising:
- a pocket former body, the pocket former body having an outer surface;
- and
- a keyway former, the keyway former positioned on the outer surface of the pocket former body, the keyway former being generally annular in shape and having an external surface.
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A post-tensioned concrete member comprising:
- a post-tensioning tendon positioned within a concrete element, the post-tensioning tendon including a tension member, fixed anchor, and a stressing anchor;
- a pocket former positioned between the stressing anchor and the concrete element, the pocket former including:
- a pocket former body, the pocket former body having an outer surface and a tension member channel, the pocket former body adapted to form a void in the concrete between the stressing end anchor and the concrete element, the tension member positioned within the tension member channel;
- and
- a keyway former, the keyway former adapted to be positioned on the outer surface of the pocket former body, the keyway former being generally annular in shape and having an external surface, the keyway former adapted to form a keyway in the concrete about the void, the keyway former separable from the pocket former body;
- concrete positioned within the concrete element such that the post-tensioning tendon and pocket former are encased in concrete.
3 more elements
Dependencies are inferred from the claim text.