Core plug extractor

- Westvaco Corporation
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Description

FIG. 1 is a perspective view of a core plug extractor showing my new design;

FIG. 2 is a top plan view;

FIG. 3 is a side elevational view; and,

FIG. 4 is an end elevational view.

Referenced Cited
U.S. Patent Documents
D136668 November 1943 Joynes
D164705 October 1951 Moses
D192721 May 1962 Mills
D199019 August 1964 Marson
D238045 December 1975 Hutton
D262513 January 5, 1982 Allen
1331875 February 1920 Roberts
3362684 January 1968 Davenport
3837622 September 1974 Gale
4026521 May 31, 1977 Clark
4460087 July 17, 1984 DeMarco et al.
Foreign Patent Documents
811081 August 1951 DEX
Other references
  • 1984 Garrett Wade Co. Woodworking Tools Catalog, p. 240, Handle Grip of Ripping Chisel "E", lower right side of page.
Patent History
Patent number: D300800
Type: Grant
Filed: Feb 15, 1985
Date of Patent: Apr 25, 1989
Assignee: Westvaco Corporation (New York, NY)
Inventor: Harold A. Sutphen, Jr. (Fairfield, CT)
Primary Examiner: James M. Gandy
Application Number: 6/702,128
Classifications
Current U.S. Class: D 8/14