IP Library Granted Patent US 11,649,877
Granted Patent B2
US 11,649,877 · App. 16/777,255 · Granted May 16, 2023

Elastomer spring/damper

Inventor: Rod Hadi (Grass Lake, MI)
Assignee: DRiV Automotive Inc.
F16F13/04B60G15/066B60G17/00B60G2202/31B60G2500/00B60G2800/162F16F2228/066
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Quick Facts
Patent No.
US 11,649,877
App. No.
16/777,255
Granted
May 16, 2023
Kind
B2
Abstract

A shock absorber includes a first end fitting connected to a first telescoping member, a second end fitting connected to a second telescoping member, the first and second telescoping members being telescopically mounted relative to each other. An elastomeric spring/damper is disposed between the first telescoping member and the second telescoping member.

Claims (25)

1. A shock absorber comprising:

a first end fitting connected to a first telescoping member;

a second end fitting connected to a second telescoping member, the first and second telescoping members being telescopically mounted relative to each other; and

an elastomeric system disposed between the first telescoping member and the second telescoping member, wherein the elastomeric system is disposed outwardly relative to the first and second telescoping members and comprises a variable distribution of at least one of: rings, apertures, and materials along a length of the elastomeric system configured to provide variable stiffness and dampening characteristics along a length of the shock absorber between the first end fitting and the second end fitting.

2. The shock absorber according to claim 1 , wherein the first telescoping member includes a first seat and the second telescoping member includes a second seat, wherein the elastomeric system is disposed between the first seat and the second seat.

3. The shock absorber according to claim 2 , wherein the first telescoping member includes a first tubular portion with the first seat extending radially outward from the first tubular portion and the second telescoping member includes a second tubular portion with the second seat extending radially outward from the second tubular portion.

4. The shock absorber according to claim 1 , wherein the elastomeric system includes a plurality of elastomeric rings stacked upon one another.

5. The shock absorber according to claim 4 , wherein the plurality of elastomeric rings are made from at least two different elastomeric materials.

6. The shock absorber according to claim 4 , wherein at least two of the plurality of elastomeric rings have different geometric shapes.

7. The shock absorber according to claim 4 , wherein at least one of the plurality of elastomeric rings has an undulating surface against an adjacent elastomeric ring.

8. The shock absorber according to claim 4 , wherein at least two of the plurality of elastomeric rings have a different height.

9. The shock absorber according to claim 1 , wherein the elastomeric system includes a monolithic body.

10. The shock absorber according to claim 9 , wherein the monolithic body includes a plurality of apertures extending through the monolithic body.

11. A shock absorber comprising:

a first end fitting connected to a first telescoping member including a first seat;

a second end fitting connected to a second telescoping member including a second seat, the first and second telescoping members being telescopically mounted relative to each other; and

an elastomeric system disposed between the first seat and the second seat, wherein the elastomeric system is disposed outwardly relative to the first and second telescoping members and comprises a variable distribution of at least one of: rings, apertures, and materials along a length of the elastomeric system configured to provide variable stiffness and dampening characteristics along a length of the shock absorber between the first end fitting and the second end fitting.

12. The shock absorber according to claim 11 , wherein the first telescoping member includes a first tubular portion with the first seat extending radially outward from the first tubular portion and the second telescoping member includes a second tubular portion with the second seat extending radially outward from the second tubular portion.

13. The shock absorber according to claim 11 , wherein the elastomeric system includes a plurality of elastomeric rings stacked upon one another.

14. The shock absorber according to claim 13 , wherein the plurality of elastomeric rings are made from at least two different elastomeric materials.

15. The shock absorber according to claim 13 , wherein at least two of the plurality of elastomeric rings have different geometric shapes.

16. The shock absorber according to claim 13 , wherein at least one of the plurality of elastomeric rings has an undulating surface against an adjacent elastomeric ring.

17. The shock absorber according to claim 13 , wherein at least two of the plurality of elastomeric rings have a different height.

18. The shock absorber according to claim 11 , wherein the elastomeric system includes a monolithic body.

19. The shock absorber according to claim 18 , wherein the monolithic body includes a plurality of apertures extending through the monolithic body.

Assignments (14)
CHANGE OF NAME Recorded Aug 20, 2025
From: DRIV AUTOMOTIVE INC.
To: ADVANCED SUSPENSION TECHNOLOGY LLC
Reel/Frame 072553/0175 →
PATENT SECURITY AGREEMENT (ABL) Recorded Apr 7, 2023
From: TENNECO INC.; DRIV AUTOMOTIVE INC.; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL WORLD WIDE LLC; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 063268/0506 →
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS (FIRST LIEN) Recorded Nov 22, 2022
From: DRIV AUTOMOTIVE INC.; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL WORLD WIDE LLC; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; TENNECO INC.; THE PULLMAN COMPANY
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 061989/0689 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
Reel/Frame 061975/0031 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
Reel/Frame 061971/0156 →
RELEASE OF SECURITY INTEREST Recorded Nov 19, 2022
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: DRIV AUTOMOTIVE INC.
Reel/Frame 061833/0619 →
RELEASE OF SECURITY INTEREST Recorded Oct 23, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: DRIV AUTOMOTIVE INC.
Reel/Frame 057887/0545 →
RELEASE OF SECURITY INTEREST Recorded Mar 18, 2021
From: WILMINGTON TRUST, NATIONAL ASSOCIATION
To: FEDERAL-MOGUL PRODUCTS US, LLC, AS SUCCESSOR TO FEDERAL-MOGUL PRODUCTS, INC.; FEDERAL-MOGUL WORLD WIDE, INC., AS SUCCESSOR TO FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL MOTORPARTS LLC, AS SUCCESSOR TO FEDERAL-MOGUL MOTORPARTS CORPORATION; FEDERAL-MOGUL IGNITION, LLC, AS SUCCESSOR TO FEDERAL-MOGUL IGNITION COMPANY; TENNECO INC., AS SUCCESSOR TO FEDERAL-MOGUL LLC; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL POWERTRAIN LLC; DRIV AUTOMOTIVE INC.
Reel/Frame 056886/0455 →
SECURITY AGREEMENT Recorded Mar 17, 2021
From: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 055626/0065 →
SECURITY AGREEMENT Recorded Dec 1, 2020
From: TENNECO INC.; THE PULLMAN COMPANY; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS US LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL CHASSIS LLC; DRIV AUTOMOTIVE INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 054555/0592 →
SECURITY INTEREST Recorded Oct 1, 2020
From: DRIV AUTOMOTIVE INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 053941/0330 →
SECURITY INTEREST Recorded Sep 24, 2020
From: DRIV AUTOMOTIVE INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 053876/0892 →
SECURITY INTEREST Recorded Sep 24, 2020
From: DRIV AUTOMOTIVE INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 053876/0687 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 14, 2020
From: HADI, RON
To: DRIV AUTOMOTIVE INC.
Reel/Frame 053501/0127 →
Continuity (2)
Provisional Application 62801279 · Feb 5, 2019
Related Publication 20200248776A1 · Aug 6, 2020