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Spirac Engineering AB
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Racine, WI, US
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Patents Grants
last 30 patents
Information
Patent Grant
Conveyor arrangements with multiple shaftless screws
Patent number
6,357,577
Issue date
Mar 19, 2002
Spirac Engineering AB
Richard Bruke
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Apparatus for screening
Patent number
6,187,180
Issue date
Feb 13, 2001
Spirac Engineering AB
Richard L. Bruke
E03 - WATER SUPPLY SEWERAGE
Information
Patent Grant
Apparatus for separation
Patent number
6,096,201
Issue date
Aug 1, 2000
Spirac Engineering AB
Richard L. Bruke
B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information
Patent Grant
Displacement device
Patent number
5,910,243
Issue date
Jun 8, 1999
Spirac Engineering AB
Richard L. Bruke
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Apparatus for discharge of sediment from a tank
Patent number
5,676,827
Issue date
Oct 14, 1997
Spirac Engineering AB
Richard L. Bruke
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Conveying and compacting apparatus having a shaftless spiral in a c...
Patent number
5,562,029
Issue date
Oct 8, 1996
Spirac Engineering AB
Richard L. Bruke
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Apparatus for compacting material
Patent number
5,421,251
Issue date
Jun 6, 1995
Spirac Engineering AB
Richard L. Bruke
B30 - PRESSES
Information
Patent Grant
Transportation device having a driven shaftless spiral freely fitte...
Patent number
5,368,153
Issue date
Nov 29, 1994
Spirac Engineering AB
Richard Bruke
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Conveying and compacting apparatus having a shaftless spiral in a c...
Patent number
5,337,658
Issue date
Aug 16, 1994
Spirac Engineering AB
Richard L. Bruke
B30 - PRESSES
Information
Patent Grant
Section of a shaftless spiral conveyor
Patent number
D326944
Issue date
Jun 9, 1992
Spirac Engineering AB
Richard L. Bruke
D34 - Material or article handling equipment
Information
Patent Grant
Helical conveyor
Patent number
5,092,453
Issue date
Mar 3, 1992
Spirac Engineering AB
Richard Bruke
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Section of a shaftless spiral conveyor
Patent number
D323414
Issue date
Jan 21, 1992
Spirac Engineering AB
Richard L. Bruke
D34 - Material or article handling equipment
Information
Patent Grant
Transportation device
Patent number
5,000,307
Issue date
Mar 19, 1991
Spirac Engineering AB
Richard Bruke
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Driving device
Patent number
4,984,477
Issue date
Jan 15, 1991
Spirac Engineering AB
Richard Bruke
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Separating device
Patent number
4,961,864
Issue date
Oct 9, 1990
Spirac Engineering AB
Richard Bruke
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Driving device
Patent number
4,922,768
Issue date
May 8, 1990
Spirac Engineering AB
Richard Bruke
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Floating shaftless helix screw press
Patent number
4,779,528
Issue date
Oct 25, 1988
Spirac Engineering AB
Richard L. Bruke
B30 - PRESSES
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
79195172 - SPIROWORK
Serial number
79195172
Registration number
5319291
Filing date
Sep 5, 2016
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
86797459 - SPIROPAC
Serial number
86797459
Registration number
5184353
Filing date
Oct 23, 2015
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
86797407 - SANDSEP
Serial number
86797407
Registration number
5107640
Filing date
Oct 23, 2015
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
79161564 - SPIROWASH
Serial number
79161564
Registration number
4771026
Filing date
Sep 9, 2014
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
79128606
Serial number
79128606
Registration number
4650828
Filing date
Mar 11, 2013
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
79134960 - COMBIGUARD
Serial number
79134960
Registration number
4594897
Filing date
Jan 29, 2013
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
79136402 - STEPGUARD
Serial number
79136402
Registration number
4590776
Filing date
Jan 29, 2013
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
75546239 - SPIROSEP
Serial number
75546239
Registration number
2535196
Filing date
Aug 28, 1998
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
75221445 - PUMPEYOR
Serial number
75221445
Filing date
Jan 6, 1997
Spirac Engineering AB
7 - Machines and machine tools
Information
Trademark
75218582 - SPIROPUMP
Serial number
75218582
Filing date
Dec 26, 1996
Spirac Engineering AB
7 - Machines and machine tools
Information
Trademark
74503983 - SPIROTAINER
Serial number
74503983
Registration number
1937858
Filing date
Mar 11, 1994
SPIRAC ENGINEERING AB
6 - Common metals and their alloys
Information
Trademark
74319641 - SPIROLIFT
Serial number
74319641
Registration number
1861348
Filing date
Oct 1, 1992
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
74319640 - SANDSEP
Serial number
74319640
Registration number
1953517
Filing date
Oct 1, 1992
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
74191765 - SPIROPAC
Serial number
74191765
Registration number
1802562
Filing date
Aug 5, 1991
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
74030352 - SPIROGUARD
Serial number
74030352
Registration number
1881843
Filing date
Feb 7, 1990
SPIRAC Engineering AB
7 - Machines and machine tools
Information
Trademark
74017745 - ENSYS
Serial number
74017745
Registration number
1765547
Filing date
Jan 10, 1990
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
73692488 - SPIROPRESS
Serial number
73692488
Registration number
1561791
Filing date
Oct 26, 1987
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
73681929 - SPIROLINE
Serial number
73681929
Registration number
1698766
Filing date
Sep 1, 1987
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
73668660 - SPIRAC
Serial number
73668660
Registration number
2129643
Filing date
Jun 24, 1987
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
73603720 - DURAFLO
Serial number
73603720
Registration number
1685064
Filing date
Jun 11, 1986
SPIRAC ENGINEERING AB
7 - Machines and machine tools
Information
Trademark
73567983
Serial number
73567983
Registration number
1427199
Filing date
Nov 29, 1985
SPIRAC ENGINEERING AB
7 - Machines and machine tools