Metal working – Method of mechanical manufacture – Shaping one-piece blank by removing material
Reexamination Certificate
2008-07-01
2008-07-01
Ross, Dana (Department: 3726)
Metal working
Method of mechanical manufacture
Shaping one-piece blank by removing material
C029S559000, C411S383000
Reexamination Certificate
active
07392576
ABSTRACT:
A first portion or plug and a second portion or pencil are provided, for use in a device, such as a marine engine. The first portion or plug may have an outer surface with external threads and a cavity with internal threads. The external threads of the first portion or plug may be threaded oppositely from the internal threads inside the cavity of the first portion or plug. The opposite threading allows the plug and pencil combination to be detached and unscrewed from an engine without the plug and pencil coming apart.
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http://www.rose-hulman.edu/˜moloney/AppComp/2000Entries/Entery02/entry02.htm (4 pages) (Printed Aug. 25, 2004).
http://www.hanessupply.com/catalog/show—page.asp?sec=026&page=0064 (2 pages) (Printed Aug. 25, 2004).
Ross Dana
Tencza Jr. Walter J.
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