Sealing cap for intermediate anchor system

• US 8,087,204 B1
• Filed: 07/08/2008
• Issued: 01/03/2012
• Est. Priority Date: 07/08/2008
• Status: Active Grant

• Current Assignee: Felix L. Sorkin
• Original Assignee: Felix L. Sorkin
• Inventors: Sorkin, Felix L.
• Primary Examiner(s): LAUX, JESSICA L
• Application Number:
  US12/169,298
• Time in Patent Office: 1,274 Days
• Field of Search: 403/365, 403/311, 403/312, 522/231.3, 522/231.4, 523/01
• US Class Current: 52/223.13
• CPC Class Codes: E04C 5/08 Members specially adapted to be used in prestressed constructions production of reinforced objects in general B28B23/00; prestressed structures produced in situ E04G21/12
• CPC Class Codes: E04C 5/122 the tensile members are anchored by wedge-action

Abstract

A sealing cap for an anchor of a post-tension anchorage system has a tubular body, a flange formed on an end of the tubular body, and a seal positioned adjacent an interior wall of the tubular body. The flange has a connector formed on a circumferential surface thereof for detachably engaging the flange with a tubular section of the anchor. The seal is positioned against the interior wall of the tubular body. The seal has a tubular shape so as to extend entirely around the interior wall. The seal is positioned in liquid-tight relation between the interior wall of the tubular body and a sheathed portion of a tendon extending from the anchor. The seal is inserted between the sheathed portion and the interior wall of the tubular body.

Claims

1. A sealing cap for an anchor of a post-tension anchorage system, the anchor having a tubular section at one end of the sealing cap, comprising:

a tubular body having an interior wall, said tubular body having a length dimension extending from one end to an opposite end thereof;

a flange formed on said one end of said tubular body and extending outwardly therefrom, said flange having a connecting means formed on a circumferential surface thereof for engaging with the tubular section of the anchor; and

a seal positioned adjacent said interior wall of said tubular body, said seal extending entirely along said length dimension of said tubular body;

said seal having a split extending longitudinally through a wall thereof.

2. The sealing cap of claim 1, said seal being removably received in liquid-tight relation against said interior wall of said tubular body.

3. The sealing cap of claim 1, said seal having a tubular shape so as to extend entirely around said interior wall.

4. The sealing cap of claim 3, said seal being formed of a material different than a material of said tubular body.

5. The sealing cap of claim 1, said tubular body being formed of a generally rigid material, said seal being formed of a more pliable material than said material of said tubular body.

6. A post-tension anchorage comprising:

an anchor member;

a polymeric encapsulation covering said anchor member, said polymeric encapsulation having a tubular section extending outwardly from an end of said anchor member; and

a sealing cap positioned adjacent said end of said anchor member, said sealing cap having a tubular body, said sealing cap having a connecting means formed on a circumferential surface thereof for engaging with said tubular section of said polymeric encapsulation, said sealing cap having a seal positioned against an interior wall of said tubular body, said seal having a split extending longitudinally through a wall thereof; and

said seal having a length equal to an entire length of said tubular body.

7. The anchorage of claim 6, said seal being removably received in liquid-tight relation against said interior wall of said tubular body.

8. The anchorage of claim 7, said seal having a tubular shape so as to extend entirely around said interior wall.

9. The anchorage of claim 8, said seal being formed of a material that is different than a material of said tubular body.

10. The anchorage of claim 6, said tubular body being formed of a generally rigid material, said seal being formed of a more pliable material than said material of said tubular body.

11. The anchorage of claim 6, further comprising:

a tendon extending through said anchor member and through said sealing cap, said seal being in liquid-tight relation with a surface of said tendon.

12. The anchorage of claim 11, said tendon having a sheathed portion and an unsheathed portion, said unsheathed portion being affixed within a cavity of said anchor member, said seal being in liquid-tight relation with said sheathed portion of said tendon.

13. The anchorage of claim 11, further comprising:

a sheathing lock affixed to said sheathed portion of said tendon so as to fix said sheathed portion to said anchor member.

14. The anchorage of claim 13, said sheathing lock affixed to an end of said anchor opposite said sealing cap.

15. An apparatus comprising:

an anchor member having a cavity on an interior wall thereof;

a tendon having a sheathed portion and an unsheathed portion, said unsheathed portion being affixed within said cavity of said anchor member;

a sealing cap affixed adjacent an end of said anchor member, said sealing cap having a tubular body and a seal positioned against an interior wall of said tubular body, said seal being in liquid-tight relation with said sheathed portion of said tendon;

said seal extending entirely along a length dimension of said tubular body, said seal having a split extending longitudinally through a wall thereof;

a polymeric encapsulation covering said anchor member, said polymeric encapsulation having a tubular section extending outwardly from said end of said anchor member, said sealing cap having a connecting means thereon for engaging with said tubular section of said polymeric encapsulation, said seal being positioned in said tubular body so as to have an end bearing against said anchor member.

16. The apparatus of claim 15, said sealing cap having an open end opposite said anchor member, said tendon extending through said open end.

17. The apparatus of claim 15, said seal being of a more pliable material than a material of said interior wall.