Cooperative service valve for satellite media transfer

US10604281B2 · kind B2 · utility

Assignee

• USA as Represented by the Administrator of the National Aeronautics and Space Administration · US

Inventors

• Hans Raven · Laurel, US
• Matthew Ashmore · Woodbine, US
• Erich Schulze · Millersville, US

Key dates

• Filing date: Sep 29, 2016
• Grant date: Mar 31, 2020
• Expiry date: Oct 12, 2037

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16L1/00
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A Cooperative Service Valve includes a fitting connected to a valve body via a tube, a stem configured to fit within the valve body. The stem includes a stem first end having a first seal and configured to movably fit within a tube first end, a sealing portion connected to the stem first end and configured, in a first position, to provide a second seal between the sealing portion and an inner surface of the stem body, a fluid flow portion comprising openings for allowing liquid or gaseous media to pass through the Cooperative Service Valve when the stem is in a second position and a stem second end configured to secure a poppet guide, a poppet and a spring associated with the poppet that biases the poppet against a seal to yield a third seal. The first, second and third seals open and close in a particular order to allow or prevent fluid from flowing through the stem.