Patent
   D320257
Priority
Jan 23 1989
Filed
Jan 23 1989
Issued
Sep 24 1991
Expiry
Sep 24 2005
Assg.orig
Entity
unknown
1
18
n/a
The ornamental design for a rotary spool valve, as shown and described.

FIG. 1 is a top perspective view of a rotary spool valve showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right end elevational view thereof;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a left side elevational view thereof.

Austin, Jr., George K., Nelson, Jr., Charles A.

Patent Priority Assignee Title
D460522, Apr 30 2001 FLINCHBAUGH, DAVID E , DR Low pressure fluid flow control valve
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D257286, Mar 06 1978 Tronomed International, Inc. Medical valve
D261547, May 29 1979 International Computers Limited Air regulating nozzle
D281349, Sep 24 1982 Milton Industries Inc. Air nozzle
D297355, Jun 27 1986 Precision Fitting and Valve Company, Inc. Fluid valve
30956,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 05 1989AUSTIN, GEORGE K JR A-DEC, INC ASSIGNMENT OF ASSIGNORS INTEREST 0050280653 pdf
Jan 05 1989NELSON, CHARLES A JR A-DEC, INC ASSIGNMENT OF ASSIGNORS INTEREST 0050280653 pdf
Jan 23 1989A-Dec, Inc.(assignment on the face of the patent)
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