IP Library Granted Patent US 9,976,617
Granted Patent B2
US 9,976,617 · App. 14/354,007 · Granted May 22, 2018

Coned-disc spring device, spring assembly, and methods of making the same

Inventors: Mark W. Campbell (Lafayette, IN); Kelly L. Falls (Fort Wayne, IN); Donald E. Paul (Logansport, IN)
Assignee: MW Industries, Inc.
F16F1/32Y10T29/49609
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Quick Facts
Patent No.
US 9,976,617
App. No.
14/354,007
Granted
May 22, 2018
Kind
B2
Abstract

A coned-disc spring device, spring assembly, methods of making the same, and methods of assembling a spring system are disclosed. Such a device includes a first end defining a first opening and a second end defining a second opening, wherein the diameter of the second opening is larger than the diameter of the first opening. The device also includes a lip portion at the second end of the device adjacent to and at least partially encircling the second opening and protruding substantially perpendicular to the plane defined by the second opening such that when a portion of a second spring member having a first groove portion is received within the second opening, the first lip portion is received within the first groove portion to optimally align the second spring member.

Claims (36)

1. A spring assembly comprising:

a first coned-disc spring device defining a first opening at a first end of the first device and a second opening at a second end of the first device, a first centerpoint of the first opening and a second centerpoint of the second opening defining an axis, the first device comprising a first lip portion at the second end of the first device adjacent to and at least partially encircling the second opening and protruding substantially perpendicular to a horizontal plane defined by the second opening, wherein the second opening has a larger diameter than the first opening, wherein the first device defines a first slot that extends between the first end of the first device to the second end of the first device such that the first device is not a continuous frustum; and

a second coned-disc spring device defining a third opening at a first end of the second spring device and a fourth opening at a second end of the second spring device, the second spring device comprising a first groove portion at the first end of the second spring device, wherein the fourth opening has a larger diameter than the third opening,

wherein the first end of the second spring device is received within the second end of the first device such that the first lip portion is received within the first groove portion optimally aligning the second spring device, and

wherein the spring devices are aligned such that successive devices are immediately adjacent at substantially all areas of the first and second spring devices disposed at a radial distance from the axis that is less than the radial distance of the first lip portion from the axis.

2. The spring assembly of claim 1 , wherein the second device defines a second slot that extends between the first end of the second device to the second end of the second device such that the second device is not a continuous frustum.

3. The spring assembly of claim 1 , wherein a width of the first slot corresponds to a linearity rate of the spring assembly versus deflection of the spring assembly.

4. The spring assembly of claim 1 , wherein the first device comprises carbon-composite.

5. The spring assembly of claim 1 , wherein the diameter of the third opening is substantially the same as the diameter of the second opening.

6. The spring assembly of claim 1 , wherein the first device comprises a second lip portion at the first end of the first device adjacent to the first opening and protruding substantially perpendicular to the plane defined by the first opening.

7. The spring assembly of claim 6 , wherein the second spring device comprises a second groove portion at the second end of the second spring device adjacent to and at least partially encircling the fourth opening of the second spring device, wherein the second lip portion is received within the second groove portion optimally aligning the second spring device.

8. The spring assembly of claim 2 , wherein the first slot of the first device is offset from the second slot of the second spring device.

9. A coned-disc spring device, the device comprising:

a first end defining a first opening;

a second end defining a second opening, wherein the diameter of the second opening is larger than the diameter of the first opening and wherein a first centerpoint of the first opening and a second centerpoint of the second opening define and axis;

a first lip portion at the second end of the device adjacent to and at least partially encircling the second opening and protruding substantially perpendicular to a horizontal plane defined by the second opening such that when a portion of a first end of a second spring device having a first groove portion is received within the second opening, the first lip portion is received within the first groove portion optimally aligning the second spring device; and

a second groove portion at the second end of the device such that when a portion of the device is received within a third spring device having a second lip portion formed at a first end of the third spring device, the second lip portion is received within the second groove portion optimally aligning the third spring device;

wherein the spring devices are aligned such that successive devices are immediately adjacent at substantially all areas of the first and second spring devices disposed at a radial distance from the axis that is less than a radial distance of the first lip portion from the axis.

10. The coned-disc spring device of claim 9 , further comprising a third groove portion at the first end of the device such that when a portion of the device is received within the third spring device having a third lip portion, the third lip portion is received within the third groove portion optimally aligning the third spring device.

11. The coned-disc spring device of claim 9 , further defining a slot that extends between the first end to the second end such that the device is not a continuous frustum.

12. The coned-disc spring device of claim 9 , wherein the device comprises carbon-composite.

13. The coned-disc spring device of claim 9 , wherein the device comprises metal.

14. The coned-disc spring device of claim 9 , wherein the device comprises a third lip portion at the first end of the device adjacent to the first opening and protruding substantially perpendicular to a horizontal plane defined by the first opening such that when the portion of the second spring device having a third groove portion is received within the second opening, the third lip portion is received within the third groove portion optimally aligning the second spring device.

15. The coned-disc spring device of claim 14 , further comprising a fourth groove portion at the first end of the device such that when a portion of the device is received within the third spring device having a fourth lip portion, the fourth lip portion is received within the fourth groove portion optimally aligning the device.

16. A method of assembling a spring system, the method comprising:

providing a first coned-disc spring device, the first device comprising:

a first end of the first device defining a first opening;

a second end of the first device defining a second opening, wherein the diameter of the second opening is larger than the diameter of the first opening and wherein a first centerpoint of the first opening and a second centerpoint of the second opening define an axis;

a first lip portion at the second end of the first device adjacent to and at least partially encircling the second opening and protruding substantially perpendicular to a horizontal plane defined by the second opening; and

a slot that extends between the first end of the first device to the second end of the first device such that the first device is not a continuous frustum; and

providing a second spring device, the second device comprising:

a first end of the second device defining a third opening;

a second end of the second device defining a fourth opening, wherein the diameter of the fourth opening is larger than the diameter of the third opening; and

a first groove portion at the first end of the second device; and

mating the first device and the second device such that at least a portion of the first end of the second device is received within at least a portion of the second opening of the first device, wherein the first lip portion is received within the first groove portion to optimally align the second device, wherein the spring devices are aligned such that successive devices are immediately adjacent at substantially all areas of the first and second spring devices disposed at a radial distance from the axis that is less than a radial distance of the first lip portion from the axis.

17. The method of claim 16 , wherein the second device comprises a second groove portion at the second end of the second device adjacent to and at least partially encircling the fourth opening of the second device, further comprising the step of receiving a third spring device having a second lip portion within at least a portion of the fourth opening of the second device, wherein the second lip portion of the third spring device is received within the second groove portion of the second spring device optimally aligning the second spring device and the third spring device.

Assignments (19)
RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT, RECORDED ON MARCH 31, 2023 AT REEL 63186 FRAME 0045 Recorded Jun 9, 2026
From: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT; PNC BANK, NATIONAL ASSOCIATION, AS REVOLVING AGENT
To: MW INDUSTRIES, INC.; MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; BELLOWSTECH, LLC
Reel/Frame 075728/0552 →
RELEASE OF SECURITY INTEREST Recorded Mar 31, 2023
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
Reel/Frame 063197/0630 →
RELEASE OF SECURITY INTEREST Recorded Mar 31, 2023
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC; MATTHEW WARREN, INC.
Reel/Frame 063197/0635 →
RELEASE OF SECURITY INTEREST Recorded Mar 31, 2023
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
Reel/Frame 063197/0641 →
RELEASE OF SECURITY INTEREST Recorded Mar 31, 2023
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC; MATTHEW WARREN, INC.
Reel/Frame 063197/0646 →
RELEASE OF SECURITY INTEREST Recorded Mar 31, 2023
From: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
To: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
Reel/Frame 063197/0662 →
SECURITY INTEREST Recorded Mar 31, 2023
From: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC; BELLOWSTECH, LLC; MATTHEW WARREN, INC.
To: BANK OF MONTREAL, AS ADMINISTRATIVE AGENT; PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 063186/0045 →
SECURITY INTEREST Recorded Dec 14, 2021
From: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 058385/0664 →
SECURITY INTEREST Recorded Dec 14, 2021
From: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 058385/0686 →
SECURITY INTEREST Recorded Dec 14, 2021
From: MW INDUSTRIES, INC.; PRECISION MANUFACTURING GROUP, LLC
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 058385/0639 →
SECURITY INTEREST Recorded Sep 29, 2017
From: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 043747/0538 →
INTELLECTUAL PROPERTY RELEASE (FIRST LIEN) Recorded Sep 29, 2017
From: UBS AG
To: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
Reel/Frame 044061/0863 →
INTELLECTUAL PROPERTY RELEASE (SECOND LIEN) Recorded Sep 29, 2017
From: UBS AG
To: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
Reel/Frame 044061/0873 →
SECURITY INTEREST Recorded Sep 29, 2017
From: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
To: ROYAL BANK OF CANADA, AS COLLATERAL AGENT
Reel/Frame 043746/0585 →
SECOND LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jul 12, 2016
From: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
To: UBS AG
Reel/Frame 039314/0925 →
FIRST LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jul 12, 2016
From: MATTHEW WARREN, INC.; PRECISION MANUFACTURING GROUP, LLC; MW INDUSTRIES, INC.
To: UBS AG
Reel/Frame 039314/0952 →
PATENT RELEASE AND REASSIGNMENT Recorded Jun 29, 2016
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: MW INDUSTRIES, INC.
Reel/Frame 039208/0101 →
SECURITY INTEREST Recorded Oct 30, 2015
From: MW INDUSTRIES, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS ADMINISTRATIVE AGENT
Reel/Frame 036924/0264 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 7, 2014
From: CAMPBELL, MARK W.; FALLS, KELLY L.; PAUL, DONALD E.
To: MW INDUSTRIES, INC.
Reel/Frame 032838/0447 →
Priority Claims (1)
WO PCT/US2011/05813 · Oct 27, 2011 · international
Continuity (1)
Related Publication 20140252705A1 · Sep 11, 2014