IP Library › Granted Patent US 10,309,439
Granted Patent B2
US 10,309,439 · App. 15/416,358 · Granted Jun 4, 2019

High torque bolt

Inventor: Arnold R. Limatoc (Aiea, HI)
Assignee: CRUSHLOCK, INC.
F16B31/04F16B39/14F16B39/284
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Quick Facts
Patent No.
US 10,309,439
App. No.
15/416,358
Granted
Jun 4, 2019
Kind
B2
Abstract

A bolt includes a main-bolt head, a threaded shaft, and a deformable-bolt head component. The main-bolt head has a recess. The threaded shaft extends from the main-bolt head. The threaded shaft has an external thread wrapped therearound. The deformable-bolt head component has an outer flange and an interior threaded bore. The outer flange of the deformable-bolt head component is coupled to the main-bolt head such that a relief space is formed between the deformable-bolt head component and the recess.

Claims (35)

1. A bolt comprising:

a main-bolt head having a recess;

a threaded shaft extending from the main-bolt head, the threaded shaft having an external thread wrapped therearound; and

a deformable-bolt head component having an outer flange and an interior threaded bore,

wherein the outer flange of the deformable-bolt head component is fixed to the main-bolt head such that a relief space is formed between the deformable-bolt head component and the recess and wherein the outer flange of the deformable-bolt head component has a first elastic modulus and the rest of the deformable-bolt head component has a second elastic modulus that is greater than the first elastic modulus.

2. The bolt of claim 1 , wherein the interior threaded bore of the deformable-bolt head component is threadingly coupled to the threaded shaft.

3. The bolt of claim 1 , wherein the interior threaded bore of the deformable-bolt head component is positioned about the thread wrapped around the threaded shaft.

4. The bolt of claim 1 , wherein the threaded shaft extends from the main-bolt head at a head-shaft joint.

5. The bolt of claim 4 , wherein the deformable-bolt head component aids in redistributing preload forces during installation of the bolt away from the head-shaft joint and towards (i) an outer portion of the main-bolt head and (ii) a portion of the external thread of the threaded shaft.

6. The bolt of claim 5 , wherein the bolt is configured to be installed in conjunction with a nut that threadingly engages the threaded shaft of the bolt, thereby resulting in the preload forces.

7. The bolt of claim 6 , wherein the relief space provides an area for the deformable-bolt head component to deform into during installation of the bolt with the nut.

8. The bolt of claim 6 , wherein, prior to installation of the bolt with the nut, a first portion of the deformable-bolt head component is contained in the recess of the main-bolt head, and wherein, after installation of the bolt with the nut, a second portion of the deformable-bolt head component is configured to be contained in the recess of the main-bolt head.

9. The bolt of claim 1 , wherein the interior threaded bore of the deformable-bolt head component forms less than three turns of an internal thread therein.

10. The bolt of claim 1 , wherein the recess is an inwardly tapered recess that extends from a front surface of the main-bolt head towards an opposing back surface of the main-bolt head.

11. The bolt of claim 1 , wherein the recess is a concave recess that extends from a front surface of the main-bolt head towards an opposing back surface of the main-bolt head.

12. A bolt comprising:

a main-bolt head having (i) a front surface, (ii) an opposing back surface, (iii) an outer surface configured to be engaged by a tool to rotate the bolt about a central axis of the bolt shaft thereby causing the main-bolt head to move axially in a first direction towards an object, and (iv) a recess in the front surface extending into the main-bolt head towards the opposing back surface;

a threaded shaft extending from the main-bolt head at a head-shaft joint, the threaded shaft having an external thread wrapped therearound; and

a deformable-bolt head component having (i) a front surface configured to engage the object thereby limiting axial movement of the deformable-bolt head component, (ii) an opposing back surface, (iii) an outer surface, (iv) an interior threaded bore forming at least a portion of a turn of an internal thread therein, and (v) an outer flange, the outer flange having a first elastic modulus and the rest of the deformable-bolt head component having a second elastic modulus that is greater than the first elastic modulus,

wherein the interior threaded bore of the deformable-bolt head component is threadingly coupled to the threaded shaft and wherein the outer flange of the deformable-bolt head component is attached to the front surface of the main-bolt head such that a relief space is formed between the deformable-bolt head component and the recess, the relief space providing an area for the deformable-bolt head component to deform into during installation of the bolt.

13. The bolt of claim 12 , wherein the deformable-bolt head component aids in redistributing preload forces during installation of the bolt away from the head-shaft joint and towards (i) an outer portion of the main-bolt head and (ii) a portion of the external thread of the threaded shaft.

14. The bolt of claim 13 , wherein the bolt is configured to be installed in conjunction with a nut that threadingly engages the threaded shaft of the bolt, thereby resulting in the preload forces.

15. The bolt of claim 14 , wherein the deformable-bolt head component has a first shape prior to installation of the bolt with the nut and a different second shape after installation of the bolt.

16. The bolt of claim 14 , wherein the deformable-bolt head component deforms during installation of the bolt with the nut by flowing into the relief space.

17. The bolt of claim 12 , wherein the interior threaded bore of the deformable-bolt head component forms less than three complete turns of the internal thread therein.

18. The bolt of claim 12 , wherein the internal thread of the deformable-bolt head component is timed with the external thread of the threaded shaft.

19. The bolt of claim 12 , wherein the front surface of the main-bolt head is welded to the outer flange of the deformable-bolt head component.

20. The bolt of claim 12 , wherein the recess is an annular inwardly tapered recess.

21. A bolt having a reinforced head, the bolt comprising:

a main-bolt head;

a collar fixed to the main-bolt head such that the collar forms a recess of the reinforced head;

a threaded shaft extending from the main-bolt head and through the collar, the threaded shaft having an external thread wrapped therearound; and

a deformable-bolt head component having an outer flange and an interior threaded bore, the outer flange of the deformable-bolt head component being coupled to the collar such that a relief space of the reinforced head is formed between the deformable-bolt head component and the recess, the outer flange having a first elastic modulus and the rest of the deformable-bolt head component having a second elastic modulus that is greater than the first elastic modulus.

22. The bolt of claim 21 , wherein the outer flange of the deformable-bolt head component is fixed to the collar such that the outer flange cannot rotate relative to the collar.

23. The bolt of claim 21 , wherein the collar has an inner surface that is a concave inner surface, a convex inner surface, an angled inner surface, an irregular inner surface, or any combination thereof.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 21, 2018
From: ARNOLD PERMANENT NUT, LLC
To: CRUSHLOCK, INC.
Reel/Frame 047843/0519 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 13, 2017
From: LIMATOC, ARNOLD R.
To: ARNOLD PERMANENT NUT, LLC
Reel/Frame 041234/0122 →
Continuity (1)
Related Publication 20180209467A1 · Jul 26, 2018
Cited By (1)
US 12,467,497