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Patent
   D255451
Priority
Dec 12 1977
Filed
Dec 12 1977
Issued
Jun 17 1980
Expiry
Jun 17 1994
Inventors
Hutchings,…
Assg.orig
General Si…
Assg.curr
General Si…
Entity
unknown
Referenced by
6
References
5
Maint.:
n/a
The ornamental design for a blade for mixing liquids in a conduit, as shown.

FIG. 1 is a front view of a blade for mixing liquids in a conduit having our new design.

FIG. 2 is a rear view thereof shown in FIG. 1.

FIG. 3 is a side view taken from the right of FIG. 1; and,

FIG. 4 is a side view taken from the left of FIG. 1.
INVENTORS:

Hutchings, William F., Salzman, Ronald N., Herbst, Norman R., Montagno, William J.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D306033, Jun 18 1987 Flygt AB Submersible mixer
D328905, Jun 22 1990 Drill bit
D664262, Sep 24 2010 Lonza Biologics PLC Impeller arrangement for fermenter
D681690, Feb 20 2012 Metso Minerals Oy Mixer impeller
D880940, May 05 2019 Food separator
D891634, Sep 04 2018 REFLEX MEDICAL CORP Agitator for pharmaceutical compounding
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
170989,
2201947,
3887300,
745853,
226823,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 12 1977General Signal Corporation(assignment on the face of the patent)
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