Expansible chamber devices – Bellows type expansible chamber – With separate ring-like reinforcing element abutting pleat
Patent
1982-09-29
1984-07-03
Garrett, Robert E.
Expansible chamber devices
Bellows type expansible chamber
With separate ring-like reinforcing element abutting pleat
92 45, 29454, 228182, F01B 1902, F16J 304
Patent
active
044572131
ABSTRACT:
Flexible welded metal bellows comprising a plurality of diaphragms comprising flexible metal annuli free plates or rings having similar inner and outer diameters, alternate pairs of said plates having their outer and inner peripheries, respectively, welded to each other to form a fluid-tight connection therebetween. The invention comprises interposing and welding a metal annuli spacer plate or ring between at least one adjacent pair of said flexible free plates to space the free plates from each other and to prevent or reduce the pressure contact between the adjacent welds when the bellows is retracted. The spacer plate(s) or ring(s) interposed between the pairs of free plates which are welded at their outer peripheries have the same outer diameter as said free plates and are welded therebetween and have a larger inner diameter than said free plates; the spacer plate(s) or ring(s) interposed between the alternate pairs of free plates which are welded at their inner peripheries have the same inner diameter as said free plates and are welded therebetween and have a smaller outer diameter than said free plates.
REFERENCES:
patent: 1180947 (1916-04-01), Scott
patent: 1341669 (1920-06-01), Porter
patent: 1367792 (1921-02-01), Arbuckle
patent: 1717196 (1929-06-01), Emmet
patent: 2534123 (1950-12-01), Hasselhorn
patent: 2920656 (1960-01-01), Bertolet
patent: 3162213 (1964-12-01), Peters
patent: 3394631 (1968-07-01), Thompson
Garrett Robert E.
Moritz Scott L.
Seymour-Sheridan, Inc.
Tully Thomas L.
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