Pressure vessel prestressing technique

Details Pressure vessel prestressing technique Pressure vessel prestressing technique

2006-08-15

2006-08-15

Aftergut, Jeff H. (Department: 1733)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S169000, C156S172000, C156S173000, C156S175000

Reexamination Certificate

active

07090736

ABSTRACT:
A method of making a filament wound pressure vessel. A thermoplastic liner is filament wound with a commingled roving containing thermoplastic and reinforcing filaments. The wound tank is partially filled with a cooling liquid and the wound tank is heated to a temperature which is sufficient to vaporize a portion of the liquid to pressurize the liner at a preselected set pressure and sufficient to fuse the thermoplastic matrix, but insufficient to significantly soften the liner.

REFERENCES:
patent: 3545262 (1970-12-01), Steele et al.
patent: 4085860 (1978-04-01), Hawkins et al.
patent: 4514447 (1985-04-01), Boxmeyer
patent: 5577630 (1996-11-01), Blair et al.
patent: 5762091 (1998-06-01), Sarne et al.
patent: 6412484 (2002-07-01), Izuchukwu et al.
patent: 6716503 (2004-04-01), Hauber
patent: 4215756 (1993-11-01), None
Translation of German Patent 4215756, 5 pages.

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