A lubricator comprises a container of variable volume holding a lubricant and having an opening for dispensing the lubricant. An electromechanical or electrochemical actuator operated by a control circuit makes it possible to reduce the volume of the container. An electrical circuit for displaying t
A lubricator comprises a container of variable volume holding a lubricant and having an opening for dispensing the lubricant. An electromechanical or electrochemical actuator operated by a control circuit makes it possible to reduce the volume of the container. An electrical circuit for displaying the state of the lubricator comprising a light source can emit at least one alarm light signal. A lid affixed to the container in a removable manner constitutes a housing for the electrical signal display circuit and defines a reference axis of the lubricator. A light diffuser guides the light emitted by the light source towards numerous light outlets distributed along the circumference of the lid in a manner that at least one of the light outlets is visible regardless of the position of an observer facing the lubricator and is located on a circle of observation centered on the reference axis of the lubricator.
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1. A lubricator comprising: a container of variable volume for holding a lubricant, with the container being equipped with at least one opening for dispensing the lubricant;an electromechanical or electrochemical actuator to reduce the volume of the container;an electrical control circuit for the ac
1. A lubricator comprising: a container of variable volume for holding a lubricant, with the container being equipped with at least one opening for dispensing the lubricant;an electromechanical or electrochemical actuator to reduce the volume of the container;an electrical control circuit for the actuator;an electrical circuit for displaying the state of the lubricator, comprising a light source so as to emit at least one alarm light signal,a lid attached to the container in a removable manner in order to constitute a housing for the electrical display circuit, anda light guide to guide the light emitted by the light source towards numerous light outlets distributed on the circumference of the lid in such a manner that at least one of the light outlets is visible to an observer facing the lubricator and located orthogonal to a reference axis passing through the center of the lid and the center of the light source of the lubricator. 2. The lubricator according to claim 1, wherein the light guide comprises a light inlet positioned opposite the light source and at least one light distributor to distribute the light towards the light outlets. 3. The lubricator according to claim 2, wherein the light distributor imposes a trajectory on the light, a part of which is a circular arc around the reference axis. 4. The lubricator according to claim 3, wherein the light distributor imposes a trajectory on the light that is partially radial with respect to the reference axis. 5. The lubricator according to claim 2, wherein the light distributor imposes a trajectory on the light, a part of which is oriented orthogonal to the reference axis. 6. The lubricator according to claim 1, wherein the lid is screwed to the container along the reference axis. 7. The lubricator according to claim 1, wherein the light guide is located inside the lid, with the lid being transparent, at least at the level of the light outlets. 8. The lubricator according to claim 1, wherein the electrical control circuit comprises a printed control circuit board, the electrical display circuit comprises a printed display circuit board that is distinct from the printed control circuit board, which is electrically connected to the printed control circuit board via at least one electrical connection interface comprising an electrical contact connected to the electrical display circuit and a corresponding electrical connector connected to the electrical control circuit. 9. The lubricator according to claim 8, wherein at least one of the electrical connectors comprises a contact strip forming a circular arc around the reference axis. 10. The lubricator according to claim 9, wherein at least one of the connectors is elastically deformable. 11. The lubricator according to claim 8, wherein at least one of the connectors is elastically deformable. 12. The lubricator according to claim 8, wherein the electrical display circuit is attached to the lid. 13. The lubricator according to claim 8, wherein the electrical display circuit is assembled on a plate that is located in the lid and is indexed by rotation with respect to the light guide. 14. The lubricator according to claim 1, wherein the electrical display circuit constitutes a part of the electromechanical actuator. 15. The lubricator according to claim 14, wherein the electrical control circuit and the electrical display circuit are located on a shared printed circuit board, which constitutes a part of the electromechanical actuator. 16. The lubricator according to claim 14, wherein the light guide forms a part of the lid and has a light inlet facing the light source such that the light source is centered on the reference axis. 17. The lubricator according to claim 14, wherein, such that the light source is shifted with respect to the reference axis, while the light guide is in a position with respect to the lid that is fixed with respect to axial translation and free to rotate around the reference axis, with the light guide being equipped with an angular indexing relief so as to position the guide with respect to the light source. 18. The lubricator according to claim 1, wherein the light guide is an integral part of the lid. 19. The lubricator according to claim 18, wherein the lubricator further comprises a device for affixing the lid to the container, without rotating the lid with respect to the container around the reference axis. 20. The lubricator according to claim 19, wherein the affixing device comprises an intermediate attachment ring, having a first intermediate thread that works with a thread on the lid and a second intermediate thread that works with a thread on the electromechanical actuator, with the first intermediate thread and the second intermediate having threads operating in opposite directions. 21. The lubricator according to claim 19, wherein the affixing device comprises: a ring equipped with a bayonet or a screw for affixing the ring to the electromechanical actuator by rotation of the ring with respect to the electromechanical actuator around the reference axis, and with a shoulder pressing the lid onto the electromechanical actuator, anda relief for angular indexing of the lid with respect to the electromechanical actuator. 22. The lubricator according to claim 19, wherein the affixing device comprises a lever with a cam. 23. The lubricator according to claim 1, wherein the light guide is provided with a relief for angular indexing with respect to the electromechanical actuator, the light is provided with an interface for affixing it to the electromechanical actuator, and with an interface for affixing it to the lid. 24. The lubricator according to claim 1, wherein the electrical display circuit is powered electrically by an autonomous electrochemical source which constitutes a part of the lid.
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