David W. Durfee

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Rochester, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for stress relief and edge sealing of welded joints in pl...
- Patent number 4,718,970
- Issue date Jan 12, 1988
- Hydroacoustics
- John V. Bouyoucos
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Stress relief and edge sealing of welded joints in plastics parts
- Patent number 4,663,206
- Issue date May 5, 1987
- Hydroacoustics Inc.
- John V. Bouyoucos
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method and apparatus for treating plastic welds to relieve stresses...
- Patent number 4,601,768
- Issue date Jul 22, 1986
- Hydroacoustics, Inc.
- John V. Bouyoucos
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Welding of plastic parts
- Patent number 4,601,927
- Issue date Jul 22, 1986
- Hydroacoustics, Inc.
- David W. Durfee
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL