Probe for air flow measurements

- ABB Flakt AB
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Description

FIG. 1 is a perspective view of a probe for air flow measurements showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof, the rear elevational view being a mirror image;

FIG. 4 is a right side elevational view, the left side elevational view being a mirror image; and,

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D218934 October 1970 Cordero
D234756 April 1975 Bergstrom
D296530 July 5, 1988 Nowacki et al.
4020639 May 3, 1977 Nagare et al.
4884460 December 5, 1989 Nowacki et al.
4945771 August 7, 1990 Ogden
4984187 January 8, 1991 Woltman
Patent History
Patent number: D337280
Type: Grant
Filed: Nov 2, 1990
Date of Patent: Jul 13, 1993
Assignee: ABB Flakt AB (Nacka)
Inventor: Anders Johansson (Hovmantorp)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Antoine D. Davis
Law Firm: Birch, Stewart, Kolasch & Birch
Application Number: 7/608,653