Metal working – Means to assemble or disassemble – Heat exchanger
Patent
1987-03-30
1988-09-20
Echols, P. W.
Metal working
Means to assemble or disassemble
Heat exchanger
2915736, 29523, 403348, 403353, B23P 1526
Patent
active
047715367
ABSTRACT:
A rod mounting system for mounting expander rods in tube expander machines is disclosed. The mounting structure includes an opening in a header sized to receive the end of a mounting rod. A key extends into the opening from one side thereof. The rod end is provided with two longitudinally extending keyways and a peripheral groove. The first keyway extends from the end of the rod to an end face aligned with the peripheral groove. The second keyway extends from a location spaced from the end of the rod in both directions beyond the peripheral groove. The rod is installed in the header by longitudinal movement in an installation and removal orientation in which the key is aligned with the first keyway. When the rod engages the inner end of the first keyway, it is rotated to position the second keyway and the key in alignment. In such orientation, the rod is locked within the header for movement between two limits of longitudinal movement. In each limit position, the second keyway and key cooperate to prevent rotation to the released orientation. The keyways and key are sized and positioned to permit an operator to install and remove rods without tools from a position remote from the header.
REFERENCES:
patent: 2023736 (1935-12-01), Mason et al.
patent: 2701114 (1955-02-01), Donaldson
patent: 3487523 (1970-01-01), Ames
patent: 3824668 (1974-07-01), Wightman
patent: 4483563 (1984-11-01), van der Heyden
patent: 4597171 (1986-07-01), Kitayama et al.
Stroup, II Steven L.
Vanderlaan Fred J.
Crown Unlimited Machine, Inc.
Echols P. W.
Rawlins Andrew E.
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