Expansible chamber devices – Bellows type expansible chamber
Patent
1993-02-02
1994-09-13
Look, Edward K.
Expansible chamber devices
Bellows type expansible chamber
2513353, 2513352, 25112917, 1376255, 277212C, 294211, 29454, 264154, 264318, 264572, F01B 1900, F16K 3100, B23P 1904
Patent
active
053458575
ABSTRACT:
A bellows for use in fluid control devices includes a head, a shoulder, a blind hole extending from an opening in the shoulder to the head, and a hollow compressible neck between the head and the shoulder, through which the blind hole extends. The neck includes a thin-walled, circumferential band located between the shoulder and the head. The bellows is formed by forming, in a body of thermoplastic material, an inner bore having an inner diameter. Next, at least one thin-walled circumferential band is formed between the head and the shoulder. Finally, the body is deformed to cause each circumferential band to bow.
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Look Edward K.
Osmonics, Inc.
Ryznic John
LandOfFree
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