Plastic and nonmetallic article shaping or treating: processes – With measuring – testing – or inspecting
Patent
1980-01-23
1981-12-01
Anderson, Philip
Plastic and nonmetallic article shaping or treating: processes
With measuring, testing, or inspecting
73105, 264101, 264225, 425175, 425178, B29F 106, G01B 528
Patent
active
043036082
ABSTRACT:
A method and apparatus for replicating the submerged surfaces of ships and other marine structures. One apparatus includes a housing which is partitioned into forward and rear chambers by a membrane and a piston member, which is carried by the membrane. Upon selective flooding of the rear chamber and evacuation of the forward chamber, the piston member is moved toward the submerged surface to form an evacuated molding region therebetween. Liquid molding material is then drawn into the evacuated molding region and the molding device is retained in position until the material solidifies.
An alternative molding apparatus includes a housing with peripheral suction elements for releasably securing the housing to the submerged surface so that a molding region is defined therebetween. Upon displacement of water from and subsequent evacuation of the molding region, settable molding material is introduced into the molding region.
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Drake, Jr. John L.
Klemens William
Preiser Herman S.
Ticker Arthur
Anderson Philip
Marsh L. A.
Randolph W. W.
Sciascia R. S.
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