Jon B. Hamaker

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Schaumburg, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Non-contacting mechanical face seal
- Patent number 5,605,339
- Issue date Feb 25, 1997
- John Crane Inc.
- Glenn G. Pecht
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Non-contacting, gap-type seal having a ring with a patterned seal face
- Patent number 5,492,341
- Issue date Feb 20, 1996
- John Crane Inc.
- Glenn G. Pecht
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Non-contacting mechanical face seal
- Patent number 5,441,283
- Issue date Aug 15, 1995
- John Crane Inc.
- Glenn G. Pecht
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Non-contacting, gap-type seal having a ring with a patterned microd...
- Patent number 5,090,712
- Issue date Feb 25, 1992
- John Crane Inc.
- Glenn G. Pecht
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Spiral groove seal system for high vapor-pressure liquids
- Patent number 4,889,348
- Issue date Dec 26, 1989
- John Crane Houdaille, Inc.
- Donald E. Amundson
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...