Connection for joining precast concrete panels
First Claim
1. A tube member for use in a connection joining precast concrete panels or the like, the member including an integral elongate, imperforate and hollow tubular body having a first closed end and a second end, concrete-engaging recesses formed in the outside of the body, grout-engaging recesses formed in the inside of the body, and form-attachment means at the second end of the body for removably securing the body to a panel-casting form;
- and a transparent seal member secured to the second end of the body, the seal member overlying and closing the second end of the body.
2 Assignments
0 Petitions
Accused Products
Abstract
A connection for joining upper and lower precast concrete panels includes a molded plastic tubular body having closed ends and recesses formed in the inside and outside of the body. The body is cast into the top of the lower panel with a sheet in place closing one end to prevent entry of water and debris into the interior of the body. When the panels are erected, the sheet is broken open exposing the interior of the body, the body is filled with grout and a structural rod extending down from the upper panel is lowered into the body as the upper panel is placed on the lower panel. Setting of the grout forms a strong connection between the two panels.
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Citations
21 Claims
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1. A tube member for use in a connection joining precast concrete panels or the like, the member including an integral elongate, imperforate and hollow tubular body having a first closed end and a second end, concrete-engaging recesses formed in the outside of the body, grout-engaging recesses formed in the inside of the body, and form-attachment means at the second end of the body for removably securing the body to a panel-casting form;
- and a transparent seal member secured to the second end of the body, the seal member overlying and closing the second end of the body.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A member for use in a connection joining precast concrete panels or the like, the member including an elongate hollow and imperforate tubular body formed of plastic resin having opposed ends;
- a transparent wall sealed to one end of the body to overlie the interior of the body and close the one end, such wall, when ruptured or removed, permitting filling of the interior of the body with grout and insertion of a reinforcing bar into the grout within the interior of the body for forming a connection therewith, concrete-engaging recesses formed in the outside of the body, grout-engaging recesses formed in the inside of the body, and form-attachment means integral with the body at the one closed end of the body for removably securing the body to a panel-casting form.
- View Dependent Claims (13, 14, 15, 16)
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17. A structure comprising a lower precast concrete member, an upper precast concrete member resting on top of the lower member and a connection joining the members together, the connection including an integral elongate tubular plastic body embedded in the top of the lower member with the body having an open end facing the upper member, a flange at the open end, a closed end facing away from the upper member, a plurality of concrete-engaging recesses on the outside of the body, a plurality of grout-engaging recesses on the inside of the body;
- concrete in the lower member extending into the concrete-engaging recesses;
grout filling the interior of the body and extending into the grout-engaging recesses;
a rod embedded in the upper member, said rod extending downwardly through the open end of the body and into the grout in the body to form a connection therewith; and
an opened transparent seal at the end of the body surrounding the rod. - View Dependent Claims (18, 19, 20)
- concrete in the lower member extending into the concrete-engaging recesses;
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21. A tube member for use in a connection joining precast concrete panels or the like, the member including an integral elongate, imperforate and hollow tubular body having a first closed end and a second end, concrete engaging recesses formed in the outside of the body, grout-engaging recesses formed in the inside of the body, the recesses in one side of the body being circumferentially discontinuous and the recesses in the other side of the body being circumferentially continuous, and form-attachment means at the second end of the body for removably securing the body to a panel-casting form;
- and a seal overlying and closing the second end of the body.
Specification