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Patent
   D326944
Priority
Sep 01 1989
Filed
Oct 10 1989
Issued
Jun 09 1992
Expiry
Jun 09 2006

TERM.DISCL.
Inventors
Bruke, Ric…
Assg.orig
Spirac Eng…
Assg.curr
Spirac Eng…
Entity
unknown
Referenced by
20
References
9
Maint.:
n/a
The new design for a section of a shaftless spiral conveyor, as shown and described.

The sole FIGURE is a perspective view of a section of a shaftless spiral conveyor showing my new design, it being understood that the conveyor is of indeterminate length.
INVENTORS:

Bruke, Richard L.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
5573660, Jun 03 1994 Noggerath Holding GmbH & Co. KG. Screw conveyor
D629582, May 27 2009 PLANTAGON INTERNATIONAL AB Transportation device for plants to be used in a greenhouse
D688344, Mar 22 2012 Swimming noodle
D705516, Jun 22 2012 MARS, INCORPORATED Twisted pet treat
D712618, May 30 2013 McCain Foods Limited Root vegetable product
D722417, May 30 2013 McCain Foods Limited Root vegetable product
D725343, May 30 2013 McCain Foods Limited Root vegetable product
D729492, May 30 2013 McCain Foods Limited Root vegetable product
D735441, Dec 03 2013 McCain Foods Limited Root vegetable product
D742091, May 30 2013 McCain Foods Limited Root vegetable product
D745245, May 30 2013 McCain Foods Limited Root vegetable product
D748366, Dec 03 2013 McCain Foods Limited Root vegetable product
D762341, May 30 2013 McCain Foods Limited Root vegetable product
D792722, Mar 29 2016 Greendale Partners, Inc. Pillow
D793025, Dec 16 2014 MARS, INCORPORATED Pet treat
D802209, May 12 2016 BBK TOBACCO & FOODS, LLP Spiral shaped tip for use in rolled smoking articles
D822320, Feb 23 2016 J.R. Simplot Company; J R SIMPLOT COMPANY Twisted potato piece
D890442, Sep 28 2018 PETSMART HOME OFFICE, INC Spiral ramp for small animal habitat
D917826, Feb 07 2020 Dried food product
D970148, Jul 06 2021 Lamb Weston, Inc.; Lamb-Weston/Meijer V.O.F. Cut potato product
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3565226,
3976176, May 22 1975 Spiral chute device
4269302, Mar 23 1979 Garvey Corporation Modular conveyor units and spiral conveyors constructed therefrom
705365,
961340,
973921,
D292938, Apr 22 1985 C. & T. Tarlton, Inc.; C & T TARLTON, INC, Spiral conveyor
D296489, May 20 1985 Consignia PLC Spiral chute
NL294187,
ASSIGNMENT RECORDS    Assignment records on the USPTO
//
Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 10 1989Spirac Engineering AB(assignment on the face of the patent)
Apr 15 1991BRUKE, RICHARD L Spirac Engineering ABASSIGNMENT OF ASSIGNORS INTEREST 0057510505 pdf
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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