Roy W. Thomas

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Attica, IN, US

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Patents Grantslast 30 patents

Information Patent Grant
Spot-welded end fitting for flexible metal piping
- Patent number 5,362,113
- Issue date Nov 8, 1994
- Tru-Flex Metal Hose Corp.
- Roy W. Thomas
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Multi-layered flexible piping and method and machine for forming same
- Patent number 5,228,479
- Issue date Jul 20, 1993
- Tru-Flex Metal Hose Corporation
- Roy W. Thomas
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method for forming a spiral-wound flexible piping
- Patent number 5,222,288
- Issue date Jun 29, 1993
- Tru-Flex Metal Hose Corporation
- Roy W. Thomas
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...