Fmc Corporation

Stephen P Barrett

Charles Edward Jennings

Michael R Williams

Tep Ungchusri

Bashir M Koleilat

Roy C Bates

Robert L Witt

John N McIntyre

Alfred P Regitz

Ronald L Riess

Kendall E Keene

A pipe connector device for interconnecting first and second pipe elements using a retention member removably secured to the first pipe element by load elements. The retention member is secured to the second pipe element by pipe threads or a second retention member can be secured to the second pipe element by load elements and the first and second retention members threaded together. A seal is extended along a portion of the length of the first and second pipe elements adjacent to an end portion of each of the pipe elements to prevent leakage. This provides a fluid-tight seal which is relatively independent of any pressure exerted between the first and second pipe elements by the retention member.

Pipe connector device

A stem-operated fire-resistant gate valve including an improved metal-to-metal stem backseat fusible ring assemblies for facilitating automatic stem backseating at pre-selected temperatures, spring enhancement of the backseating procedure, and an improved metal-to-metal gate seat.

Fire-resistant gate valve

Growing community of inventors

Houston, TX, United States of America

Stephen P Barrett