TREA

Unidirectional valve

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Information

  • Patent Grant
  • D676527
  • Patent Number
    D676,527
  • Date Filed
    Wednesday, December 16, 2009
    14 years ago
  • Date Issued
    Tuesday, February 19, 2013
    11 years ago
  • US Classifications
    Field of Search
    • US
    • D23 233-237
    • D23 244-249
    • D23 259-269
    • D23 310
    • 128 206120
    • 128 206150
    • 128 206210
    • 128 206280
    • 128 207120
  • International Classifications
    • 2301
    • Term of Grant
      14Years
Information
Abstract
Description


FIG. 1 is a front perspective view of a unidirectional valve, showing the new design.



FIG. 2 is a top plan view thereof;



FIG. 3 is a right side elevational view thereof, the left side elevational view being the mirror image of the right side elevational view;



FIG. 4 is a bottom plan view thereof;



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



FIG. 6 is a rear elevational view thereof.


In the drawings, the broken lines depict environmental subject matter only and form no part of the claimed design.


Claims
  • The ornamental design for a unidirectional valve, as shown and described.
US Referenced Citations (67)
Number Name Date Kind
2072516 Ferenci et al. Mar 1937 A
2230770 Almelo Feb 1941 A
2895472 Matheson Jul 1959 A
RE28102 Mayhew Aug 1974 E
D232635 Mauri Sep 1974 S
4215682 Kubik et al. Aug 1980 A
4419993 Petersen Dec 1983 A
4441494 Montalbano Apr 1984 A
4536440 Berg Aug 1985 A
4592815 Nakao Jun 1986 A
4630604 Montesi Dec 1986 A
4790306 Braun et al. Dec 1988 A
4807619 Dyrud et al. Feb 1989 A
4827924 Japuntich May 1989 A
4874399 Reed et al. Oct 1989 A
4898174 Fangrow, Jr. Feb 1990 A
4915105 Lee Apr 1990 A
4934362 Braun Jun 1990 A
4971052 Edwards Nov 1990 A
5025052 Crater et al. Jun 1991 A
5035239 Edwards Jul 1991 A
5062421 Burns et al. Nov 1991 A
5099026 Crater et al. Mar 1992 A
5127397 Kohnke Jul 1992 A
5325892 Japuntich et al. Jul 1994 A
5394568 Brostrom et al. Mar 1995 A
5411576 Jones et al. May 1995 A
5464010 Byram Nov 1995 A
5465712 Malis Nov 1995 A
5472481 Jones et al. Dec 1995 A
5496507 Angadjivand et al. Mar 1996 A
5509436 Japuntich et al. Apr 1996 A
5579761 Yuschak et al. Dec 1996 A
5617849 Springett et al. Apr 1997 A
5687767 Bowers Nov 1997 A
5706804 Baumann et al. Jan 1998 A
5908598 Rousseau et al. Jun 1999 A
5924420 Reischel et al. Jul 1999 A
6041782 Angadjivand et al. Mar 2000 A
6047698 Magidson et al. Apr 2000 A
D424688 Bryant et al. May 2000 S
6055983 Metzger May 2000 A
6057256 Krueger et al. May 2000 A
6062221 Brostrom et al. May 2000 A
6068799 Rousseau et al. May 2000 A
6123077 Bostock et al. Sep 2000 A
D431647 Henderson et al. Oct 2000 S
6125849 Williams et al. Oct 2000 A
6158429 Gardner et al. Dec 2000 A
6213122 Rousseau et al. Apr 2001 B1
6216693 Rekow et al. Apr 2001 B1
6238466 Rousseau et al. May 2001 B1
D443927 Chen Jun 2001 S
RE37974 Bowers Feb 2003 E
6805124 Japuntich et al. Oct 2004 B2
7013895 Martin Mar 2006 B2
7028689 Martin et al. Apr 2006 B2
7503326 Martin Mar 2009 B2
20020023651 Japuntich et al. Feb 2002 A1
20030005934 Japuntich Jan 2003 A1
20040255947 Martin et al. Dec 2004 A1
20050061327 Martin et al. Mar 2005 A1
20070119459 Japuntich et al. May 2007 A1
20070144524 Martin Jun 2007 A1
20080178884 Gerson et al. Jul 2008 A1
20110139158 Xue et al. Jun 2011 A1
20120125342 Gebrewold et al. May 2012 A1
Foreign Referenced Citations (5)
Number Date Country
0756881 Feb 1997 EP
000875778-0001 Mar 2008 EP
WO 9324181 Dec 1993 WO
WO 0001737 Jan 2000 WO
WO 0128634 Apr 2001 WO
Non-Patent Literature Citations (6)
Entry
Wente, Van A., Superfine Thermoplastic Fibers; Industrial and Engineering Chemistry, vol. 48, No. 8, pp. 1342-1346 (Aug. 1956).
Naval Research Laboratories, published May 25, 1954, entitled Superfine Organic Fibers by Wente, Van A., Boone, C.D., and Fluharty, E.L., 22 pages.
Niosh Procedure No. PCT-APR-STP-0004, Revision 1.1, dated Jun. 3, 2005; Determination of Exhalation Valve Leakage Test, Air-Purifying Respirators Standard Testing Procedure, 9 pages.
3M Occupational Health and Environmental Safety Division Test Method, CPC Valve Vacuum Leak Test; OTM-20189/4, Effective Date Jan. 17, 2006, 3 pages.
Photographs of 3M™ Cool Flow™ Valve, available at least as early as Dec. 16, 2008, 2 pages.
3M™ Cool Flow™ Valve Product Information, 2001, 4 pages.