Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Patent
1977-10-25
1979-04-03
Lanham, C. W.
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
261114A, 403375, 228170, 228173F, B23P 1500, B01D 4712
Patent
active
041469500
ABSTRACT:
One basic method for forming a bubble cap assembly held together with a hold-down stud for sealing a hole in a tray deck comprises (1) forming an inner tubular sleeve having a lower flanged end telescopic with the inner surface of a tubular riser having a lower flanged end, and (2) sealing the lower flanged ends of both the telescopic tubular riser and the inner tubular sleeve with gasket means to the upper and lower peripheral surfaces around the hole for providing a double seal between the tray deck and the bubble cap assembly, for minimizing leakage, and for assuring proper alignment of the bubble cap assembly relative to the tray deck. At least one method step of three different methods for assembling each of three different modifications comprises securing a spider on the lower end of the hold-down stud for placing it in tension for compressing the two sealing gasket means in one embodiment, fastening the hold-down stud lower end to a cross bar which is welded to the internal surfaces of the inner tubular sleeve for forming the second embodiment and for forming the third embodiment, cutting horizontally into two opposite cylindrical sides of the upper portion of the inner tubular sleeve for a substantial distance, and bending the two cut bent portions inwardly into a kidney shape until contiguous with the hold-down stud to which it then is welded.
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Crane Daniel C.
Lanham C. W.
Nichols Theron H.
Ries Carl G.
Texaco Inc.
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