# US 10,480,593 B2 · Sprague carrier

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- Number: US 10,480,593 B2
- Document ID: US10480593B2
- Status: Granted
- Kind: B2
- Application number: 16/042,929
- Filed: 2018-07-23
- Published: 2018-11-15
- Granted: 2019-11-19
- Earliest claimed: 2016-12-05
- Applicants: Justin Smith
- Inventors: Justin Smith
- Web page: https://patentgrep.com/patent/US10480593B2

## CPC

- F16D 27/02: with electromagnets incorporated in the clutch, i.e. with collecting rings {(F16D27/004 takes precedence)}
- F16D 41/064: the intermediate members wedging by rolling and having a circular cross-section, e.g. balls (F16D41/061 takes precedence)
- F16D 41/067: and the members being distributed by a separate cage encircling the axis of rotation
- B60K 17/16: of differential gearing
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES

## Abstract

A Sprague carrier for use in a front differential is provided. The Sprague carrier includes an armature plate having a plurality of concentrically located connector apertures. The Sprague carrier also includes a spring-less bearing cage. The spring-less bearing cage includes bearing apertures, bearings coupled within the bearing apertures without springs, and concentrically located connector recesses corresponding to the concentrically located connector apertures of the armature plate. The Sprague carrier further includes connectors engaging the connector apertures of the armature plate and the connector recesses of the bearing cage to couple the armature plate to the bearing cage.

## Claims

### Claim 1

A Sprague carrier for use in a front differential, the Sprague carrier comprising:
a two piece armature plate comprising:
a fixed portion fixedly coupled to a bearing cage; and
a floating ring, wherein the fixed portion comprises teeth equally distributed around an outer circumference of the fixed portion, and the floating ring comprises corresponding teeth equally distributed around an inner circumference of the floating ring, wherein the fixed portion of the two piece armature plate is fixedly coupled to the bearing cage and the floating ring is moveable between an engaged position with the teeth of the floating ring engaged with the teeth of the fixed portion and a disengaged position with the teeth of the floating ring disengaged from the teeth of the fixed portion.

### Claim 2 (depends on 1)

The Sprague carrier of claim 1, wherein the fixed portion and the bearing cage are formed as a unitary piece.

### Claim 3 (depends on 2)

The Sprague carrier of claim 2, wherein the bearing cage and the fixed portion are formed from a single piece of carbon steel.

### Claim 4 (depends on 1)

The Sprague carrier of claim 1, wherein the bearing cage comprises bearing apertures; and bearings coupled within the bearing apertures.

### Claim 5 (depends on 4)

The Sprague carrier of claim 4, wherein the bearings are coupled within the bearing apertures with coil springs.