Engineering topics
Publications and source records attributed to Martin, J. W..
Curing technique for producing variable viscosity seal has hard sealing surface supported by softer rubber. Valve seal is clamped between two jaws for curing with hotter jaw at temperature of approximately 350 F and lower at room temperature. Result is durable tight valve-seat.
Special boiling and drying process removes approximately one half of extractable hydrocarbon tail present in peroxide cured elastomer of valve seals.
Sealing technique eliminates groove or adhesive bonding and its attendant heating and curing need to finely finish at least one surface to be sealed. Seal could be mounted either inside or outside seal line, and could be installed in final assembly without exposing part to heat and pressure of curing.
Method improves resistance of CIS-1,4-poly(butadiene) elastomers to attack by oxygen difluoride at low temperatures by replacing silica reinforcement with less reactive substances. Improved elastomeric compound is utilized in bladders, diaphragms, valves, O-rings and seals.
Development and characteristics of elastomeric materials for positive expulsion bladders
Equipment for testing of ground station ranging equipment and spacecraft transponders
Simulation of signal characteristics caused by Doppler and range delay in Apollo tracking