Engineering topics
Publications and source records attributed to Macglashan, W. F., Jr..
Zero-leakage valve has fluid-sealing diaphragm support and flat sievelike sealing surface. Diaphragm-support valve is easy to fabricate and requires minimum maintenance. Potential applications include isolation valve for waste systems and remote air-actuated valve. Device is also useful in controlling flow of liquid fluorine and corrosive fluids at high pressures.
Diaphragm with embossed pattern has greater structural rigidity than one with smooth surfaces, but under severe stress, tensile loads will flatten embossing. This provides necessary additional panel stretch needed to prevent rupture of diaphragm material. Hexagonal embossing-configuration allows panel stretch in any direction or in all directions simultaneously.
Configuration of poppet valve with zero clearance sudden initial contact is described. Detailed description of valve operation is presented and diagram of components is illustrated.
Valve with embedded fine particles of diamond in the metal surface of the valve seat resists galling, corrosion, erosion, and cold welding. Diamond powder has an average particle diameter of 0.01 micron and is used with a standard fine diamond polishing compound.
Belleville spring assembly with elastic guides having low hysteresis
Filler valve design for supplying liquid propellants at high pressure to space vehicles
Structural design of high pressure regulator valve
Antiflutter check valve for use with high pressure fluid flow
Reinforcing beam system for highly flexible diaphragms in valves or pressure switches
Compact high pressure filter for rocket fuel lines
Automatic ejection valve for attitude control and midcourse guidance of space vehicles
High pressure four-way valve with O ring adapted to pass across inlet port
Multiple Belleville spring assembly with even load distribution
Pressure regulating system with high pressure fluid source, adapted to maintain constant downstream pressure