Reconditioning of valves

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Patents Grantslast 30 patents

Information Patent Grant
Valve resurfacing device
- Patent number 5,860,774
- Issue date Jan 19, 1999
- Neway Manufacturing, Inc.
- Boris R. Teper
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Device for grinding the head of a valve, especially of an internal-...
- Patent number 5,199,222
- Issue date Apr 6, 1993
- SERDI - Societe d'Etudes de Realisation et de Diffusion Industrielles
- Jacques Leroux
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Valve resurfacing apparatus and method for making the same
- Patent number 4,930,261
- Issue date Jun 5, 1990
- Hein-Werner Corporation
- Mark D. Tiegs
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and process for refurbishing valves
- Patent number 4,593,445
- Issue date Jun 10, 1986
- Westinghouse Electric Corp.
- David A. Snyder
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
1327187
- Patent number 1,327,187
- Issue date Jan 6, 1920
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR