ELECTRICAL GROUNDING OF BEARING SEAL

• US 20170125960A1
• Filed: 11/02/2016
• Published: 05/04/2017
• Est. Priority Date: 11/02/2015
• Status: Abandoned Application

• Current Assignee: AES Engineering Limited (Aesseal PLC)
• Original Assignee: AES Engineering Limited (Aesseal PLC)
• Inventors: Colverson, Andrew, Pogmore, Oliver
• Application Number:
  US15/341,926
• Publication Number:
  US 20170125960A1
• Time in Patent Office: Days
• CPC Class Codes: F16J 15/064 the packing combining the sealing function with other functions
• CPC Class Codes: F16J 15/4478 Pre-assembled packings
• CPC Class Codes: F16J 15/453 characterised by the use of particular materials F16J15/444 takes precedence
• CPC Class Codes: H01R 13/2414 conductive elastomers
• CPC Class Codes: H01R 13/5219 Sealing means between coupling parts, e.g. interfacial seal
• CPC Class Codes: H01R 39/025 Conductive materials
• CPC Class Codes: H01R 39/64 Devices for uninterrupted current collection
• CPC Class Codes: H02K 11/40 Structural association with grounding devices
• CPC Class Codes: H02K 5/10 with arrangements for protection from ingress, e.g. water or fingers

Abstract

A bearing seal includes a rotor and a stator and at least one electrically conductive elastomeric toroidal member. When the bearing seal is installed in equipment and is providing sealing between the rotor and the stator, an electrical grounding path is provided therebetween, the electrical grounding path extending through the electrically conductive elastomeric toriodal member.

Claims

1. A bearing seal for equipment having an equipment rotor and an equipment stator, said bearing seal comprising:

a bearing seal rotor;

a bearing seal stator;

an electrically conductive elastomeric toroidal member so that, when said bearing seal is installed in equipment, said bearing seal provides sealing between the equipment rotor and said bearing seal stator; and

,

an electrical grounding path between the equipment rotor and the equipment stator, said electrical grounding path extending through said electrically conductive elastomer toroidal member.

2. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 1, wherein an additional electrically conductive elastomeric toroidal member is provided between the equipment rotor and said bearing seal rotor.

3. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 1, wherein an additional electrically conductive elastonneric toroidal member is provided between the equipment stator and said bearing seal stator.

4. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 1, further comprising a shut-off device for said bearing seal.

5. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 4, wherein said shut-off device includes an additional electrically conductive elastomeric toroidal member for providing an electrical conduction between said bearing seal rotor and said bearing seal stator.

6. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 1, wherein said electrically conductive elastomeric toroidal member is made of a silicone rubber.

7. The bearing seal for equipment having an equipment rotor and an equipment stator according to claim 6, wherein the silicone rubber is a two-component material.