Patent
   D297971
Priority
Nov 26 1984
Filed
May 28 1985
Issued
Oct 04 1988
Expiry
Oct 04 2002
Assg.orig
Entity
unknown
17
10
n/a
The ornamental design for a diaphragm valve, as shown and described.

FIG. 1 is a front, top and left side perspective view of a diaphragm valve showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Kiyota, Yoshihiro, Muratani, Toyoji

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D344785, Sep 25 1991 Swagelok Company Valve
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Patent Priority Assignee Title
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2397373,
2605991,
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3628770,
4214604, Feb 06 1978 TRU-TECH INDUSTRIES, INC Straight through flow diaphragm valve structures
4545565, Dec 08 1983 Asahi Yukizai Kogyo Co., Ltd. Diaphragm valve
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 20 1985KIYOTA, YOSHIHIROSEKISUI KAGAKU KOGYO KABUSHIKI KAISHA, 4-4, NISHITEMMA 2-CHOME, KITA-KU, OSAKA, JAPANASSIGNMENT OF ASSIGNORS INTEREST 0049130855 pdf
May 20 1985MURATANI, TOYOJISEKISUI KAGAKU KOGYO KABUSHIKI KAISHA, 4-4, NISHITEMMA 2-CHOME, KITA-KU, OSAKA, JAPANASSIGNMENT OF ASSIGNORS INTEREST 0049130855 pdf
May 28 1985Sekisui Kagaku Kogyo Kabushiki Kaisha(assignment on the face of the patent)
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