Particle size classification device for field use

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Description

FIG. 1 is a perspective transparent view of the device of my new design;

FIG. 2 is a front view of the device showing the layers;

FIG. 3 is a top view, thereof; and,

FIG. 4 is bottom view of the device.

Claims

The ornamental design for a particle size classification device for field use, as shown and described.

Referenced Cited
U.S. Patent Documents
3365058 January 1968 Petersen
4276265 June 30, 1981 Gillespie
D268588 April 12, 1983 Cubbison et al.
D268842 May 3, 1983 Gordon, Jr.
D271697 December 6, 1983 Weir
4472269 September 18, 1984 Swick
4487323 December 11, 1984 Marrs
D294948 March 29, 1988 Pogue et al.
5791493 August 11, 1998 Meyer
D480096 September 30, 2003 Hovian
D491207 June 8, 2004 Gunderson
D732095 June 16, 2015 Enfantino
20130001138 January 3, 2013 Enfantino
Patent History
Patent number: D743461
Type: Grant
Filed: Aug 4, 2014
Date of Patent: Nov 17, 2015
Inventor: Linda Libasci (College Station, TX)
Primary Examiner: Patricia Palasik
Application Number: 29/498,415
Classifications
Current U.S. Class: Vibrator Or Separator (D15/147)