Patent
   D439633
Priority
Apr 22 1999
Filed
Oct 22 1999
Issued
Mar 27 2001
Expiry
Mar 27 2015
Assg.orig
Entity
unknown
4
4
n/a
The ornamental design for a vacuum control valve, as shown and described.

FIG. 1 is a front elevational view showing a vacuum control valve according to the present invention;

FIG. 2 is a rear elevational view showing the valve of FIG. 1;

FIG. 3 is a top plan view showing the valve of FIG. 1;

FIG. 4 is a bottom plan view showing the valve of FIG. 1;

FIG. 5 is a right side elevational view showing the valve of FIG. 1; and,

FIG. 6 is a left side elevational view showing the valve of FIG. 1.

The cords in FIGS. 3,5 and 6 are shown broken away to indicate indeterminate length.

Kagohashi, Hiroshi, Ito, Tomohiro, Ikeo, Toshihiro

Patent Priority Assignee Title
D558859, Jul 07 2006 SMC Corporation Flow control valve
D562436, Jul 07 2006 SMC Corporation Flow control valve
D623269, Dec 02 2008 SMC Corporation Vacuum control valve
D623270, Dec 02 2008 SMC Corporation Vacuum control valve
Patent Priority Assignee Title
4795131, Oct 24 1986 THERMO FIBERTEK INC Vacuum controller
5615701, Jun 07 1993 Sekisui Kagaku Kogyo Kabushiki Kaisha Vacuum valve control device and vacuum valve
5651528, May 09 1994 Unaxis Balzers Aktiengesellschaft Vacuum valve
5848608, Nov 14 1995 SMC Corporation Vacuum-pressure-control slow exhaust valve
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 22 1999CKD Corporation(assignment on the face of the patent)
Feb 21 2000IKEO, TOSHIHIROCKD CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0108610930 pdf
Feb 21 2000KAGOHASHI, HIROSHICKD CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0108610930 pdf
Feb 21 2000ITO, TOMOHIROCKD CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0108610930 pdf
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