The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 1979
Filed:
Apr. 12, 1978
William C Saxman, Irving, TX (US);
Dresser Industries, Inc., Dallas, TX (US);
Abstract
A cutter with a replaceable cutting element is adapted to be mounted upon the rotary head of an earth boring machine or upon the body of an earth boring bit. A rolling cutter shell is mounted upon the rotary head or the bit for rotary motion to roll along the formations being cut. The rolling cutter shell includes first and second ends with an annular receiving surface between the ends. Replaceable cutting means substantially encircle the rolling cutter shell for contacting the formations and forming a hole therein. The replaceable cutting means include an inner surface that mates with the annular receiving surface of the rolling cutter shell. Locking means securely lock the replaceable cutting means to said rolling cutter shell and draw the inner surface of the replaceable cutting means into engagement with the annular receiving surface of the rolling cutter shell.