IP Library Granted Patent US 8,846,780
Granted Patent B2
US 8,846,780 · App. 13/525,474 · Granted Sep 30, 2014

Friction element for synchronizing device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 8,846,780
App. No.
13/525,474
Granted
Sep 30, 2014
Kind
B2
Abstract

A friction element for a synchronizing device as well as an apparatus for producing a friction element for a synchronizing device are disclosed.

Claims (17)

1. A friction element for a synchronizing device, wherein the composition of the friction element contains the following:

5-15% friction dust;

15-25% phenol resin modified using cashew shell oil;

1-10% hemp fibers;

1-10% PAN fibers;

5-15% barite;

35-45% diatomaceous earth; and

5-15% copper chips.

2. A friction element for a synchronizing device, wherein the composition of the friction element contains the following:

1-10% friction dust;

15-25% phenol resin modified using cashew shell oil;

5-15% rock wool;

5-15% carbon fibers;

15-25% diatomaceous earth;

15-25% coconut shell flour;

1-10% copper fibers; and

5-15% cotton fibers.

Assignments (4)
CORRECTIVE ASSIGNMENT TO CORRECT THE PROPERTY NUMBERS PREVIOUSLY RECORDED ON REEL 037732 FRAME 0347. ASSIGNOR(S) HEREBY CONFIRMS THE APP. NO. 14/553248 SHOULD BE APP. NO. 14/553258. Recorded Oct 11, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 040404/0530 →
MERGER AND CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES AG & CO. KG; SCHAEFFLER VERWALTUNGS 5 GMBH
To: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
Reel/Frame 037732/0228 →
CHANGE OF NAME Recorded Feb 5, 2016
From: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 037732/0347 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 18, 2012
From: KUCKUCK, CONSTANZE; STEINMETZ, STEFAN
To: SCHAEFFLER TECHNOLOGIES AG & CO. KG
Reel/Frame 028391/0261 →