Rectifier unit and rectifier attaching structure

Details Rectifier unit and rectifier attaching structure Rectifier unit and rectifier attaching structure

2005-10-11

2005-10-11

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

06952960

ABSTRACT:
A spacer has an annular concave portion, at one end face, to accept a rectifier that rectifies fluid flowing through a flow channel in a flowmeter, a protruding annular convex portion, at the other end face, of a size to fit in the annular concave portion, and fixing means, on an outer surface, for fixing the spacer to a tube of the flow channel through engagement. A rectifier unit is temporarily assembled by integrating the spacer and the rectifier that are provided alternately in series in an axial direction into a tubular unit. It is thus possible to achieve efficient assembly, by which plural rectifiers are inserted and attached inside the tube through a single insertion operation. Moreover, it is possible to address a need for a reduction of rectifiers in size or a change to the specifications regarding the number of rectifiers to be provided.

REFERENCES:
patent: 4504360 (1985-03-01), Fujiwara
patent: 4841781 (1989-06-01), Khalifa
patent: 5255716 (1993-10-01), Wilcox
patent: 6401531 (2002-06-01), Tank et al.
Patent Abstracts of Japan, Publication No. 02-263117, Publication Date: Oct. 25, 1990, 1 page.

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