Harold T. Ray

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Walnut Creek, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a weld neck flange
- Patent number 4,545,231
- Issue date Oct 8, 1985
- Grove Valve and Regulator Company
- Walter L. Connolly
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Integral end closure and hub for valve body and method of forming same
- Patent number 4,339,112
- Issue date Jul 13, 1982
- Grove Valve and Regulator Company
- Walter L. Connolly
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...