Hold down system and building using the same

Patent metadata

Field	Value
Publication number	US-11136754-B2
Application number	US-201615041786-A
Country	US
Kind code	B2
Filing date	Feb 11, 2016
Priority date	Sep 12, 2006
Publication date	Oct 5, 2021
Grant date	Oct 5, 2021

Abstract

A fastener assembly comprises a first cylindrical member disposed within a second cylindrical member. One of the first and second cylindrical members is movable relative to the other in a first direction. The other one of the first and second cylindrical members is locked relative to the one in a second direction opposite to the first direction. A spring is operably attached to the first and second cylindrical members to urge one of the first and second cylindrical members in the first direction. A removable member is operably associated with the first and second cylindrical members to prevent one of the first and second cylindrical members from moving in the first direction prior to removing the removable member. The removable member is configured to be pulled out to allow one of the first and second cylindrical members to move in the first direction.

First claim

I claim:

1. A fastener system for securing a building wall to a foundation, comprising:
a) a tie rod for being operably secured to a building foundation and a building wall;
b) a bearing plate for attachment to the wall, the bearing plate having an opening, the tie rod extending through the opening;
c) a body around the tie rod, the body having a curved upper surface, the body for bearing on the bearing plate;
d) a one-piece unitary nut including a threaded hole threadedly attached to the tie rod, the nut having a curved bottom surface complementary to the curved upper surface, the curved bottom surface bearing on the curved upper surface; and
e) the curved upper surface remaining in substantial contact with the curved bottom surface even when the tie rod is off vertical.

2. A fastener system as in claim 1 , wherein:
a) the curved upper surface is convex; and
b) the curved bottom surface is concave.

3. A fastener system as in claim 1 , wherein the curved bottom surface is a circumferential recess.

4. A fastener system as in claim 1 , wherein:
a) the bearing plate includes a flat bottom surface and a flat top surface; and
b) the bearing plate includes a raised portion on the flat top surface around the opening, the bearing plate and the raised portion forming a one-piece unitary structure; and
c) the raised portion includes a curved upper surface.

5. A fastener system as in claim 4 , wherein the raised portion is convex.

6. A fastener system as in claim 4 , wherein:
a) the raised portion is a washer welded to the bearing plate; and
b) the washer includes a concave upper surface.

7. A fastener system as in claim 1 , wherein:
a) the bearing plate includes a raised portion around the opening, the raised portion includes a curved upper surface; and
b) the body includes a curved bottom surface.

8. A fastener system as in claim 7 , wherein the curved upper surface of the raised portion is convex and the curved bottom surface of the body is concave.

9. A fastener system as in claim 7 , wherein the raised portion is integral with the bearing plate.

10. A fastener system as in claim 7 , wherein:
a) the raised portion is a washer welded to the bearing plate;
b) the washer includes a concave upper surface; and
c) the curved bottom surface of the body is convex.

11. A fastener system as in claim 7 , wherein:
a) the raised portion is a washer welded to the bearing plate;
b) the washer includes a convex upper surface; and
c) the curved bottom surface of the body is concave.

12. A fastener system as in claim 1 , wherein the opening is slotted.

13. A fastener system as in claim 1 , wherein the bearing plate includes a ramped upper surface.

14. A fastener system as in claim 1 wherein:
a) the body is cylindrical with a central opening; and
b) the tie rod extends through the central opening.

15. A fastener system as in claim 14 , wherein:
a) the body is disposed within a cylindrical member, the cylindrical member including an axial opening for receiving the body;
b) the body and the cylindrical member being movable relative to one another in a first direction; and
c) a spring operably attached to the body and the cylindrical member to urge the body and the cylindrical member to move relative to one another in the first direction.

16. A fastener system as in claim 15 , wherein the curved upper surface is an upper edge surface adjoining the central opening.

17. A fastener system as in claim 15 , wherein the cylindrical member includes a curved surface on a lower edge surface adjoining the axial opening.

18. A fastener system as in claim 17 , wherein:
a) the bearing plate includes a raised portion around the opening; and
b) the raised portion includes a curved upper surface complementary to the curved surface on the lower edge surface of the cylindrical member.

19. A fastener system as in claim 18 , wherein the curved upper surface of the bearing plate is convex.

20. A fastener system as in claim 18 , wherein:
a) the raised portion is a washer welded to the bearing plate; and
b) the washer includes a concave upper surface.

Assignees

• Espinosa Thomas M
• Cetres Holdings Llc

Inventors

• Espinosa Thomas M

Classifications

• E04C5/16

  Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups ({E04C5/06 takes precedence;} tools connecting reinforcing elements E04G21/12) · CPC title

• E02D27/34 Primary

  Foundations for sinking or earthquake territories (building constructions with protection arrangements against earthquakes E04H9/02) · CPC title

• E04B2001/2688

  self adjusting, e.g. for compensation of shrinkage · CPC title

• E04H9/14

  against other dangerous influences, e.g. tornadoes, floods · CPC title

• E04B1/2604

  Connections specially adapted therefor (shear dowels E04B1/486, E04B1/49) · CPC title