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Publication numberUSD347298 S
Publication typeGrant
Application numberUS 29/000,382
Publication dateMay 24, 1994
Filing dateOct 13, 1992
Publication number000382, 29000382, US D347298 S, US D347298S, US-S-D347298, USD347298 S, USD347298S
InventorsDaniel A. Japuntich, David C. Byram, James E. Steffen
Original AssigneeMinnesota Mining And Manufacturing Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Valve cover
US D347298 S
Abstract  available in
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  1. The ornamental design for a valve cover, as shown and described.

FIG. 1 is a perspective view of a valve cover showing our new design. The broken line showing of FIG. 1 is for illustrative purposes only and forms no part of the claimed design; it being understood that filtering face masks of other configurations may be used in conjunction with the valve cover of this invention;

FIG. 2 is a top view thereof;

FIG. 3 is a left side elevational view thereof; the right side elevational view being the same;

FIG. 4 is a bottom view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a front elevational view thereof.

Non-Patent Citations
13M product literature for Gas and Vapor Respirators (Jun. 1990).
23M product literature for Particulate Respirators (Apr. 1990).
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6460539Sep 21, 2000Oct 8, 20023M Innovative Properties CompanyRespirator that includes an integral filter element, an exhalation valve, and impactor element
US8757156Oct 13, 2008Jun 24, 20143M Innovative Properties CompanyFace mask with unidirectional multi-flap valve
U.S. ClassificationD24/110.4