Nonmetallic cylindrical cryogenic container

Details Nonmetallic cylindrical cryogenic container Nonmetallic cylindrical cryogenic container

1987-08-03

1988-09-27

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156245, 220 3, 220414, B31C 300

Patent

active

047739525

ABSTRACT:
A vacuum-tight nonmetallic Dewar component is fabricated from composite material of nonmagnetic fibers in a resin matrix. The component is cylindrical with a closed end, and is laid up from sheets of the composite material and circles cut from the sheets to form the closed end. The layers are mechanically worked and debulked repeatedly during layup between the addition of successive layers, to remove irregularities that can cause vacuum leaks. The joints between the sheets applied to the cylindrical surface and the circular end pieces are mechanically worked to effect a vacuum-tight seal, and the joints are staggered as between succeeding layers for strength and integrity. The laid up and debulked piece is finally cured.

REFERENCES:
patent: 2718583 (1955-09-01), Noland et al.
patent: 3392865 (1968-07-01), Dryden
patent: 3508677 (1970-04-01), Laibson et al.
patent: 3604587 (1971-09-01), Pechacek
patent: 4007075 (1977-02-01), McClain et al.
patent: 4398646 (1983-08-01), Pechacek
patent: 4579617 (1986-04-01), Oberg et al.
patent: 4602722 (1986-07-01), Ives

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