Dennis R. Spina

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Onsted, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Extrusion head for blow molding
- Patent number 5,620,722
- Issue date Apr 15, 1997
- Hoover Universal, Inc.
- Dennis R. Spina
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Compression molding and trimming blow pin assembly
- Patent number 5,449,284
- Issue date Sep 12, 1995
- Hoover Universal, Inc.
- Dennis R. Spina
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Hot fill plastic container with vacuum collapse pinch grip indentat...
- Patent number 5,141,120
- Issue date Aug 25, 1992
- Hoover Universal, Inc.
- Randall S. Brown
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Blow molding method for making a reversely oriented hot fill container
- Patent number 5,122,327
- Issue date Jun 16, 1992
- Hoover Universal, Inc.
- Dennis R. Spina
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL