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Michael W. Horgan
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Coventry, RI, US
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last 30 patents
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Patent Grant
Method and apparatus for cold rolling piping element connections ha...
Patent number
5,570,603
Issue date
Nov 5, 1996
Grinnell Corporation
Charles N. Chatterley
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and apparatus for forming piping element connections having...
Patent number
5,450,738
Issue date
Sep 19, 1995
Grinnell Corporation
Charles N. Chatterley
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Coupling for rigidly connecting pipe sections
Patent number
4,861,075
Issue date
Aug 29, 1989
Grinnell Corporation
Jerome S. Pepi
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...