Robert E Greenwell

US Patent:

43288448, May 11, 1982

Filed:

Feb 27, 1980

Appl. No.:

6/125003

Inventors:

Robert L. Becktel - Laguna Niguel CA
Robert P. Greenwell - Mercer Island WA
Basil B. Tilling - Mission Viejo CA

Assignee:

Parker-Hannifin Corporation - Cleveland OH

International Classification:

B65B 304
F16L 7900

US Classification:

141302

Abstract:

A pressure fueling adapter for aircraft has spring loaded primary and secondary nested poppets for controlling fluid flow therethrough, the primary poppet operable by engagement with the position lever of a fuel nozzle and the secondary poppet responsive to pressure differentials to allow inlet fluid flow and check back flow. A cam interengagement mechanism may be manually actuated to connect the primary and secondary poppets for simultaneous movement by the position lever of the fuel nozzle to defeat the secondary poppet check, for defueling purposes.