RING-PATCH

Self-Sealing and Self-Locking Threaded Fastening Devices Having Thermoplastic Material Deposited in a Ring on the Threaded Portion Thereof

Sealing Material in the Form of a Thermoplastic Resin for Application to the Thread Portion of Threaded Fastening Devices to Make Them Self-Sealing and Self-Locking

Treatment of Threaded Fastening Devices of Others by the Application of a Resinous Material in the Form of a Ring on the Threaded Portion Thereof to Make Them Self-Sealing, Self-Locking, and Vibration Resistant