Rotameter tube O-ring retention

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Description

FIG. 1 is a perspective view of a rotameter tube O-ring retention showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view, the top plan view being a mirrored image thereof;

FIG. 4 is a perspective view of a further embodiment of the rotameter tube O-ring retention showing my new design;

FIG. 5 is a front elevational view of a further embodiment view thereof; and,

FIG. 6 is a bottom plan view, the top plan view being a mirrored image of a further embodiment view there of.

Claims

The ornamental design for a “rotameter tube O-ring retention”, as shown and described.

Referenced Cited
U.S. Patent Documents
D297716 September 20, 1988 Rosaen
Patent History
Patent number: D457452
Type: Grant
Filed: Mar 31, 2001
Date of Patent: May 21, 2002
Inventor: Tom Christiansen (Whittier, CA)
Primary Examiner: Antoine Duval Davis
Application Number: 29/139,526
Classifications
Current U.S. Class: Volume, Flow Or Rate (D10/96)
International Classification: 1004;