IP Library Granted Patent US 8,151,433
Granted Patent B2
US 8,151,433 · App. 12/184,455 · Granted Apr 10, 2012

Method of making disc brake pads

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Quick Facts
Patent No.
US 8,151,433
App. No.
12/184,455
Granted
Apr 10, 2012
Kind
B2
Abstract

The subject invention provides for disc brake pads and a method of designing disc brake pads. The brake pads include a backing plate and a friction pad having a center section, an outer edge, an inner edge and a friction surface. The method includes the step of developing a finite element model of a precursor brake pad design using dimensional and material property information of the backing plate and friction pad to perform a normal mode analysis of the precursor brake pad design. The method proceeds with the step of performing the normal mode analysis using the finite element model to determine whether there is an area on the friction surface having an excitation amplitude that is greater than a threshold value of amplitude. If an area having an excitation amplitude greater than the threshold value is determined, the precursor brake pad design is modified to provide a brake pad design having a relieved portion in the area.

Claims (14)

1. A method of making a brake pad, comprising the steps of:

providing a metal backing plate having a front face; and

attaching a friction pad having an outer edge, an inner edge and a friction surface to the front face of the backing plate, the friction pad having a relieved portion located along a center section of at least one of the outer edge or the inner edge, said relieved portion extending obliquely from said friction surface.

2. The method of claim 1 , wherein the step of attaching comprises molding the friction pad and the relieved portion onto the backing plate.

3. The method of claim 2 , wherein molding comprises hot molding.

4. The method of claim 2 , wherein molding comprises press and cure molding.

5. The method of claim 2 , wherein the step of molding the friction pad also comprises molding an end chamfer on at least one of a first end or a second end of the friction pad.

6. The method of claim 5 , wherein the end chamfer is molded on both of the first end and the second end.

7. The method of claim 5 , wherein the end chamfer is one of a parallel chamfer, a radial chamfer or a diamond chamfer.

8. The method of claim 1 , wherein the step of attaching the friction pad and relieved portion comprises steps of:

forming the friction pad and relieved portion; and

bonding the friction pad to the backing plate.

9. The method of claim 1 , wherein the relieved portion comprises one of a V-shaped chamfer, V-shaped notch and a U-shaped notch.

10. The method of claim 1 , wherein the friction pad further comprises an end chamfer.

Assignments (23)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2025
From: FEDERAL-MOGUL PRODUCTS US LLC
To: FEDERAL-MOGUL MOTORPARTS LLC
Reel/Frame 072473/0066 →
MERGER Recorded Jul 23, 2025
From: FEDERAL-MOGUL PRODUCTS, INC.
To: FEDERAL-MOGUL PRODUCTS US LLC
Reel/Frame 071800/0682 →
MERGER Recorded Dec 12, 2023
From: FEDERAL-MOGUL PRODUCTS, INC.
To: FEDERAL-MOGUL MOTORPARTS LLC
Reel/Frame 065839/0156 →
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.; TENNECO INTERNATIONAL HOLDING CORP.; THE PULLMAN COMPANY; TENNECO GLOBAL HOLDINGS INC.; CLEVITE INDUSTRIES INC.; TMC TEXAS INC.; CARTER AUTOMOTIVE COMPANY LLC; FEDERAL-MOGUL WORLD WIDE LLC; FELT PRODUCTS MFG. CO. LLC; MUZZY-LYON AUTO PARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL POWERTRAIN IP LLC; FEDERAL-MOGUL PISTON RINGS, LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL CHASSIS LLC; F-M MOTORPARTS TSC LLC; F-M TSC REAL ESTATE HOLDINGS LLC; FEDERAL-MOGUL VALVE TRAIN INTERNATIONAL LLC; FEDERAL-MOGUL SEVIERVILLE, LLC; BECK ARNLEY HOLDINGS LLC; FEDERAL-MOGUL FILTRATION LLC; FEDERAL-MOGUL FINANCING CORPORATION; FEDERAL-MOGUL PRODUCTS US LLC
Reel/Frame 061975/0218 →
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 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 →
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 058392/0274 →
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 →
MERGER Recorded Jan 5, 2021
From: FEDERAL-MOGUL PRODUCTS, INC.
To: FEDERAL-MOGUL PRODUCTS US LLC
Reel/Frame 054811/0605 →
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 →
COLLATERAL TRUSTEE RESIGNATION AND APPOINTMENT, JOINDER, ASSUMPTION AND DESIGNATION AGREEMENT Recorded Oct 26, 2018
From: BANK OF AMERICA, N.A., AS CO-COLLATERAL TRUSTEE AND RESIGNING COLLATERAL TRUSTEE
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS CO-COLLATERAL TRUSTEE, SUCCESSOR COLLATERAL TRUSTEE
Reel/Frame 047630/0661 →
RELEASE OF SECURITY INTEREST Recorded Oct 22, 2018
From: BANK OF AMERICA, N.A., AS COLLATERAL TRUSTEE
To: FEDERAL-MOGUL LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL IGNITION COMPANY; FEDERAL-MOGUL CHASSIS LLC; FEDERAL MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS, INC.
Reel/Frame 047276/0771 →
RELEASE OF SECURITY INTEREST Recorded Oct 22, 2018
From: BANK OF AMERICA, N.A., AS COLLATERAL TRUSTEE
To: FEDERAL-MOGUL LLC; FEDERAL-MOGUL WORLD WIDE LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL IGNITION COMPANY; FEDERAL-MOGUL CHASSIS LLC; FEDERAL MOGUL POWERTRAIN LLC; FEDERAL-MOGUL PRODUCTS, INC.
Reel/Frame 047276/0554 →
CONFIRMATORY GRANT OF SECURITY INTERESTS IN UNITED STATES PATENTS Recorded Oct 9, 2018
From: TENNECO INC.; TENNECO AUTOMOTIVE OPERATING COMPANY INC.; TENNECO INTERNATIONAL HOLDING CORP.; THE PULLMAN COMPANY; TENNECO GLOBAL HOLDINGS INC.; CLEVITE INDUSTRIES INC.; TMC TEXAS INC.; CARTER AUTOMOTIVE COMPANY LLC; FEDERAL-MOGUL WORLD WIDE LLC; FELT PRODUCTS MFG. CO. LLC; MUZZY-LYON AUTO PARTS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL POWERTRAIN IP LLC; FEDERAL-MOGUL PISTON RINGS, LLC; FEDERAL-MOGUL IGNITION LLC; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL CHASSIS LLC; F-M MOTORPARTS TSC LLC; F-M TSC REAL ESTATE HOLDINGS LLC; FEDERAL-MOGUL VALVETRAIN INTERNATIONAL LLC; FEDERAL-MOGUL SEVIERVILLE, LLC; BECK ARNLEY HOLDINGS LLC; FEDERAL-MOGUL FILTRATION LLC; FEDERAL-MOGUL FINANCING CORPORATION; FEDERAL-MOGUL PRODUCTS US LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL TRUSTEE
Reel/Frame 047223/0001 →
COLLATERAL TRUSTEE RESIGNATION AND APPOINTMENT AGREEMENT Recorded Apr 3, 2018
From: CITIBANK, N.A., AS COLLATERAL TRUSTEE
To: BANK OF AMERICA, N.A., AS COLLATERAL TRUSTEE
Reel/Frame 045822/0765 →
GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Sep 26, 2017
From: FEDERAL-MOGUL LLC; FEDERAL-MOGUL PRODUCTS, INC.; FEDERAL-MOGUL MOTORPARTS LLC; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL IGNITION COMPANY; FEDERAL-MOGUL WORLD WIDE, LLC
To: CITIBANK, N.A., AS COLLATERAL TRUSTEE
Reel/Frame 044013/0419 →
GRANT OF SECURITY INTEREST IN UNITED STATES PATENTS Recorded Jun 23, 2017
From: FEDERAL-MOGUL LLC; FEDERAL-MOGUL PRODUCTS, INC.; FEDERAL-MOGUL MOTORPARTS CORPORATION; FEDERAL-MOGUL CHASSIS LLC; FEDERAL-MOGUL POWERTRAIN LLC; FEDERAL-MOGUL IGNITION COMPANY; FEDERAL-MOGUL WORLD WIDE, INC.
To: CITIBANK, N.A., AS COLLATERAL TRUSTEE
Reel/Frame 042963/0662 →
SECURITY INTEREST Recorded Jun 20, 2014
From: FEDERAL-MOGUL CORPORATION, A DELAWARE CORPORATION; FEDERAL-MOGUL WORLD WIDE, INC., A MICHIGAN CORPORATION; FEDERAL-MOGUL IGNITION COMPANY, A DELAWARE CORPORATION; FEDERAL-MOGUL POWERTRAIN, INC., A MICHIGAN CORPORATION; FEDERAL-MOGUL PRODUCTS, INC. , A MISSORI CORPORATION; FEDERAL-MOGUL CHASSIS LLC, A DELAWARE LIMITED LIABILITY COMPANY
To: CITIBANK, N.A., AS COLLATERAL TRUSTEE
Reel/Frame 033204/0707 →
RELEASE Recorded Feb 5, 2010
From: SILICON VALLEY BANK
To: VLINGO CORPORATION
Reel/Frame 023937/0363 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 1, 2008
From: LIU, WEIMING; SILVEY, RODNEY G.; MAHAN, JASON HEATH
To: FEDERAL-MOGUL PRODUCTS, INC.
Reel/Frame 021329/0274 →