Respirator belt having flexible air channels

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Description

FIG. 1 is a front perspective view showing the new design for a respirator belt having flexible air channels;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a left view thereof; and,

FIG. 7 is a right view thereof.

The broken line showing of portions of the article is included for the purpose of illustrating environmental structure and forms no part of the claimed design.

The shading is provided to illustrate contour only and is not an indication of surface texture.

Claims

The ornamental design for a respirator belt having flexible air channels, as shown and described.

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Patent History
Patent number: D683013
Type: Grant
Filed: Feb 15, 2012
Date of Patent: May 21, 2013
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Kenneth J. Krepel (North St. Paul, MN), Nathan A. Abel (Minneapolis, MN), Jia Hu (Mounds View, MN), Sean R. Kilmer (Lino Lakes, MN), James M. Ulwelling (Eau Claire, WI)
Primary Examiner: Ian Simmons
Assistant Examiner: Richelle Shelton
Application Number: 29/413,394
Classifications