COUPLINGS FOR TRANSMITTING ROTATION

**Definition:** This place covers:

Systems of clutches or couplings for transmitting rotation used within a mechanism of general utility.

Combinations of clutches and brakes used within a mechanism of general utility.

Combinations couplings for transmitting rotation from one element to another and brakes used in conjunction with each other in a mechanism of general utility.

Combinations of couplings for transmitting rotation from one element to another and a clutch used in conjunction with each other in a mechanism of general utility.

Couplings per se for transmitting rotation of the following types:

Clutches per se of the following types:

Clutch components or special features related to clutches:

Brakes per se of the following types:

Brake components or special features related to brakes:

Friction linings in general:

Other types of couplings for transmitting rotation, clutches or brakes not provided for in another subclass of the CPC.

**Limiting references (this place does not cover):** - Electrodynamic brake systems for vehicles in general -> B60L7/00 - Vehicle brake control systems -> B60T - Conjoint control of vehicle sub-units of different type or different function, e.g. when at least one sub-unit is a clutch or a brake -> B60W - Fluid gearings -> F16H39/00 , F16H41/00 , F16H43/00 - Combinations of fluid gearings with clutches or couplings -> F16H45/00 - Combinations of mechanical gearings with fluid clutches -> F16H47/00 - Differential gearings, e.g. with freewheels or other clutches -> F16H48/00 - Dynamo-electric brakes or clutches, e.g. of the Eddy-current hysteresis type -> H02K49/00 - Clutches or holding devices using electrostatic attraction, e.g. using Johnson-Rahbek effect -> H02N13/00

**Glossary:** - actuator: a component of a mechanism that causes movement of a motion-conveying component or motion-inhibiting component but does not itself directly convey or inhibit motion. - brake: a mechanism with at least one component that is moved by an actuator to selectively or automatically engage or stop a member with respect to a stationary part. - clutch: a mechanism with at least two relatively movable components that are selectively or automatically engaged with each other by control means, e.g. an actuator, to transmit mechanical power or convey motion from a first member to a second member or disengaged by control means to stop transmitting mechanical power or conveying motion. - coupling for transmitting rotation: a mechanism that transmits torque or conveys rotary motion from a first shaft to a second shaft or other rotating member and that either does not include relatively moving components or, if it has relatively moving components, the components move without the use of control means.