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COUPLINGS; DRAUGHT AND BUFFING APPLIANCES (vehicle connections in general B60D)
Definition statement
This subclass covers:

Devices and methods for connecting rolling stock in a train and to cushion impact of the railway vehicles against each other.

Informative references
Attention is drawn to the following places, which may be of interest for search:

Vehicle connections in general

Couplings comprising interengaging parts of different shape or form and having links, bars, pins, shackles, or hooks as coupling means
Definition statement
This group covers:

Couplings having interengaging parts having different shape wherein the couplings mounted on adjacent vehicles could be of same shape, but connected together by parts of different shape, e.g. bars or shakles .

Following drawings show two examples:

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References relevant to classification in this group
This group does not cover:

Couplings for matching couplings of different types

Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
Definition statement
This group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Following drawings show two examples:

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Couplings for special purposes not otherwise provided for
Definition statement
This group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Typical examples are:

  • Automatic car coupler.
  • Transitional coupling for matching couplings of different types.
  • Air hose support clip to prevent lateral loading.
  • Centering device for automatic electrical couplings.
  • Visual coupling indicator.

Following drawings show two examples:

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Informative references
Attention is drawn to the following places, which may be of interest for search:

Pivotal connections

Gangways for couled vehicles

Arrangements of electric cables or lines between relatively movable parts

Flexible line connectors

for coupling articulated trains, locomotives and tenders or the bogies of a vehicle; Coupling by means of a single coupling bar; Couplings preventing or limiting relative lateral movement of vehicles
Definition statement
This subgroup covers:

Examples:

Coupling between two articulated vehicle parts

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Coupling by means of a single coupling bar

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A convex surface 75 adapted for contact with a plate 72 to limit lateral movement

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Informative references
Attention is drawn to the following places, which may be of interest for search:

Construction details of vehicle bodies

Gangways for coupled vehicles, e.g. of concertina type

Details or accessories
Definition statement
This group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Following drawings show two examples (US2584486 and US7686177):

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Informative references
Attention is drawn to the following places, which may be of interest for search:

Hand tools

Mounting of the couplings on the vehicle
Definition statement
This subgroup covers:

Arrangement of coupling in relation to vehicle body or under-frame, and mounting of coupling on the vehicle.

Example:

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Draw-gear
Definition statement
This group covers:

Details of the structure that links the couplings to the end of the wagon.

Following drawing shows one example;

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Buffers (springs F16F)
Definition statement
This group covers:

The titles of this group are self-explanatory and do not need to be more specified.

Following drawing shows one example:

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References relevant to classification in this group
This group does not cover:

Manufacturing buffers

Dampers

Dampers using plastic deformation

B61F7/12

Buffer for cranes

absorbing shocks by permanent deformation of buffer element
Definition statement
This subgroup covers:

Energy consumption element or collapsible element for absorbing energy in case of collision. The deformation of the element is not reversible.

Following drawings show two examples:

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Informative references
Attention is drawn to the following places, which may be of interest for search:

Bumpers or like collision guards

Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions

This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013