The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 1994
Filed:
Feb. 02, 1993
Applicant:
Inventor:
Patrick H Murphy, Upland, CA (US);
Assignee:
Osmonics, Inc., Minnetonka, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F16K / ; B23P / ;
U.S. Cl.
CPC ...
92 34 ; 2513353 ; 2513352 ; 25112917 ; 1376255 ; 2772 / ; 294211 ; 29454 ; 264154 ; 264318 ; 264572 ;
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.