Sealed tendon-tensioning anchor system

• US 5,440,842 A
• Filed: 12/09/1992
• Issued: 08/15/1995
• Est. Priority Date: 12/09/1992
• Status: Expired due to Term

• Current Assignee: Felix L. Sorkin
• Original Assignee: Felix L. Sorkin
• Inventors: Sorkin, Felix L.
• Primary Examiner(s): REDMAN, JERRY E
• Application Number:
  US07/987,636
• Time in Patent Office: 979 Days
• Field of Search: 52/223.13, 52/DIG. 12, 52/244, 24/122.6
• US Class Current: 52/223.13
• CPC Class Codes: E04C 5/12 Anchoring devices tools or methods for tensioning in situ E04G21/12

Abstract

An apparatus for sealing an anchor retaining a tendon is disclosed, whereby an end of the tendon extends from the anchor. The apparatus comprises a vessel member having a void and a rust inhibitor disposed within the void. Further, the apparatus includes a retaining member permanently affixed to the vessel member whereby the retaining member is punctured by the tendon end upon placing the vessel in sealed communication with the anchor.

Claims

1. An apparatus for sealing an anchor retaining a tendon, whereby an end of said tendon extends from said anchor, comprising:

a vessel member having a void and an exterior outer edge along the perimeter of said vessel member;

a rust inhibitor disposed within said void; and

a retaining member permanently affixed around said exterior outer edge of said vessel member, whereby said retaining member is punched by said tendon end upon placing said vessel in sealed communication with said anchor.

2. The apparatus of claim 1 wherein said vessel further comprises an outer ridge mateable with said anchor, and wherein said retaining member is affixed along said outer ridge.

3. The apparatus of claim 1 wherein said retaining member comprises polyethylene film.

4. The apparatus of claim 1 wherein said retaining member comprises transparent film.

5. The apparatus of claim 1 wherein said vessel comprises high density polyethylene.

6. The apparatus of claim 1 wherein said vessel comprises a cup-shaped member.

7. The apparatus of claim 1 wherein said vessel further comprises an outer ridge mateable with said anchor, and further comprising a sealing member disposed along said outer ridge.

8. The apparatus of claim 1 wherein said retaining member is approximately 0.004 to 0.006 inches in thickness.

9. An apparatus for sealing an anchor retaining a tendon, whereby an end of said tendon extends from said anchor, comprising:

a vessel member having a void and an outermost exterior outer ridge which is mateable with said anchor;

a rust inhibitor disposed within said void; and

a polyethylene film retaining member permanently affixed along said outer ridge of said vessel member, whereby said retaining member is punctured by said tendon end upon mating said vessel to said anchor.

10. The apparatus of claim 9 wherein said polyethylene film retaining member comprises a transparent material.

11. The apparatus of claim 9 wherein said polyethylene film retaining member is approximately 0.004 to 0.006 inches in thickness.

12. An apparatus for anchoring a tendon in concrete, comprising:

an anchor having a first opening for receiving an end of a tendon and a second opening communicating with said first opening and for permitting said tendon to extend outward from said anchor; and

at least one wedge for retaining said tendon end in affixed position with respect to said anchor; and

an apparatus for sealing said second opening of said anchor;

comprising;

a vessel member having a void and an exterior outer edge along the perimeter of said vessel member;

a rust inhibitor disposed within said void; and

a retaining member permanently affixed around said exterior outer edge of said vessel member, whereby said retaining member is punctured by said tendon end upon placing said vessel in sealed communication with said anchor.

13. The apparatus of claim 12 wherein said retaining member is approximately 0.004 to 0.006 inches in thickness.