Walter A. Trumbull

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Midland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Underwater pelletizer having sealed heat transfer tubes embedded in...
- Patent number 5,629,028
- Issue date May 13, 1997
- The Conair Group, Inc.
- Walter Trumbull
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Adjustable plug seal mechanism for heat transfer zone separation in...
- Patent number 4,355,905
- Issue date Oct 26, 1982
- The Dow Chemical Company
- Harold E. St. Louis
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Sheet wrapper
- Patent number 3,984,906
- Issue date Oct 12, 1976
- The Dow Chemical Company
- James A. Schlosser
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL