IP Library › Granted Patent US 6,964,629
Granted Patent B2
US 6,964,629 · App. 09/870,770 · Granted Nov 15, 2005

Differential gears with optimized number of teeth

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Quick Facts
Patent No.
US 6,964,629
App. No.
09/870,770
Granted
Nov 15, 2005
Kind
B2
Abstract

The differential assembly includes a rotatable differential case, a pair of side gears rotatably mounted within the differential case, and a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween. A sum of a number of teeth of any one of the side gears and a number of teeth of any one of the pinion mate gears is no greater than nineteen, a difference between the number of teeth of any one of the side gears and the number of teeth of any one of the pinion mate gears is no greater than three, and the number of teeth of any one of the side gears and the number of teeth of any one of the pinion mate gears each is no greater than eleven.

Claims (29)

1. A differential assembly comprising:

a rotatable differential case;

a pair of side gears rotatably mounted within said differential case; and

a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween;

wherein a sum of a first number of teeth of any one of said side gears and a second number of teeth of any one of said pinion mate gears is less than nineteen.

2. The differential assembly as defined in claim 1 , wherein a difference between said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears is no greater than three.

3. The differential assembly as defined in claim 2 , wherein said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears each is no greater than eleven.

4. A differential assembly comprising:

a rotatable differential case;

a pair of side gears rotatably mounted within said differential case; and

a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween;

wherein a sum of a first number of teeth of any one of said side gears and a second number of teeth of any one of said pinion mate gears is less than nineteen, a difference between said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears is no greater than three, and said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears each is no greater than eleven.

5. A differential assembly comprising:

a rotatable differential case;

a pair of side gears rotatably mounted within said differential case; and

a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween;

wherein a sum of a first number of teeth of any one of said side gears and a second number of teeth of any one of said pinion mate gears is no greater than nineteen, and a difference between said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears is no greater than three.

6. The differential assembly as defined in claim 5 , wherein said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears each is no greater than eleven.

7. A differential assembly comprising:

a rotatable differential case;

a pair of side gears rotatably mounted within said differential case; and

a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween;

wherein a sum of a first number of teeth of any one of said side gears and a second number of teeth of any one of said pinion mate gears is no greater than nineteen, and said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears each is no greater than eleven.

8. The differential assembly as defined in claim 7 , wherein a difference between said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears is no greater than three.

9. A differential assembly comprising:

a rotatable differential case;

a pair of side gears rotatably mounted within said differential case; and

a set of spaced apart differential pinion mate gears rotatably supported by a pinion shaft and drivingly engaging said side gears to allow differential rotation therebetween;

wherein a sum of a first number of teeth of any one of said side gears and a second number of teeth of any one of said pinion mate gears is no greater than nineteen, a difference between said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears is no greater than three, and said first number of teeth of any one of said side gears and said second number of teeth of any one of said pinion mate gears each is no greater than eleven.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Jun 29, 2020
From: CITIBANK, N.A.
To: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC; DANA AUTOMOTIVE SYSTEMS GROUP, LLC; DANA LIMITED; FAIRFIELD MANUFACTURING COMPANY, INC.
Reel/Frame 053309/0686 →
SECURITY AGREEMENT (BRIDGE) Recorded Apr 21, 2020
From: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC; DANA LIMITED; DANA AUTOMOTIVE SYSTEMS GROUP, LLC; FAIRFIELD MANUFACTURING COMPANY, INC.
To: CITIBANK, N.A.
Reel/Frame 052459/0001 →
SECURITY AGREEMENT SUPPLEMENT Recorded Apr 21, 2020
From: DANA HEAVY VEHICLE SYSTEMS GROUP, LLC; DANA LIMITED; DANA AUTOMOTIVE SYSTEMS GROUP, LLC; FAIRFIELD MANUFACTURING COMPANY, INC.
To: CITIBANK, N.A.
Reel/Frame 052459/0224 →
INTELLECTUAL PROPERTY REVOLVING FACILITY SECURITY AGREEMENT Recorded Apr 25, 2008
From: DANA HOLDING CORPORATION; DANA LIMITED; DANA AUTOMOTIVE SYSTEMS GROUP, LLC; DANA DRIVESHAFT PRODUCTS, LLC; DANA DRIVESHAFT MANUFACTURING, LLC; DANA LIGHT AXLE PRODUCTS, LLC; DANA LIGHT AXLE MANUFACTURING, LLC; DANA SEALING PRODUCTS, LLC; DANA SEALING MANUFACTURING, LLC; DANA STRUCTURAL PRODUCTS, LLC; DANA THERMAL PRODUCTS, LLC; DANA HEAVY VEHICLE SYSTEMS GROUP, LLC; DANA COMMERCIAL VEHICLE PRODUCTS, LLC; DANA COMMERCIAL VEHICLE MANUFACTURING, LLC; SPICER HEAVY AXLE & BRAKE, INC.; DANA OFF HIGHWAY PRODUCTS, LLC; DTF TRUCKING INC.; DANA WORLD TRADE CORPORATION; DANA AUTOMOTIVE AFTERMARKET, INC.; DANA GLOBAL PRODUCTS, INC.; DANA STRUCTURAL MANUFACTURING, LLC
To: CITICORP USA, INC.
Reel/Frame 020859/0249 →
INTELLECTUAL PROPERTY TERM FACILITY SECURITY AGREEMENT Recorded Apr 25, 2008
From: DANA HOLDING CORPORATION; DANA LIMITED; DANA AUTOMOTIVE SYSTEMS GROUP, LLC; DANA DRIVESHAFT PRODUCTS, LLC; DANA DRIVESHAFT MANUFACTURING, LLC; DANA LIGHT AXLE PRODUCTS, LLC; DANA LIGHT AXLE MANUFACTURING, LLC; DANA SEALING PRODUCTS, LLC; DANA SEALING MANUFACTURING, LLC; DANA STRUCTURAL PRODUCTS, LLC; DANA THERMAL PRODUCTS, LLC; DANA HEAVY VEHICLE SYSTEMS GROUP, LLC; DANA COMMERCIAL VEHICLE PRODUCTS, LLC; DANA COMMERCIAL VEHICLE MANUFACTURING, LLC; SPICER HEAVY AXLE & BRAKE, INC.; DANA OFF HIGHWAY PRODUCTS, LLC; DTF TRUCKING INC.; DANA WORLD TRADE CORPORATION; DANA AUTOMOTIVE AFTERMARKET, INC.; DANA GLOBAL PRODUCTS, INC.; DANA STRUCTURAL MANUFACTURING, LLC
To: CITICORP USA, INC.
Reel/Frame 020859/0359 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 19, 2008
From: TORQUE-TRACTION TECHNOLOGIES, LLC
To: DANA AUTOMOTIVE SYSTEMS GROUP, LLC
Reel/Frame 020518/0949 →
MERGER Recorded Mar 2, 2006
From: TORQUE-TRACTION TECHNOLOGY, INC.
To: TORQUE-TRACTION TECHNOLOGIES LLC
Reel/Frame 017240/0209 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2003
From: SPICER TECHNOLOGY, INC.
To: TORQUE-TRACTION TECHNOLOGIES, INC.
Reel/Frame 013731/0084 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 24, 2002
From: TSUNG, WEI-JIUNG
To: SPICER TECHNOLOGY, INC.
Reel/Frame 012500/0634 →