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:
Aug. 14, 1990
Filed:
Feb. 27, 1989
Carroll R Thompson, Woodlands, TX (US);
Scan Systems, Inc., Houston, TX (US);
Abstract
A portable electrode arc cutting tool 11 for cutting internal and external precision notches in a work surface in which the tool is releasably attachable to the work surface and a calibrated feed control (14,112,185) is used to bring a surface configured electrode member (68,101,173) into close proximity to the work surface. Thereafter, upon the application of arc discharges of electrical current between the electrode member and the work surface and use of a cooling and flushing fluid, the electrode member cuts a precision depth notch in the work surface in an embodiment for internal use within pipe. The tool includes releasable attachment means (12,91,141) for stabilizing the tool within the bore of the pipe. In a tool used for external cutting of notches, the tool is releasably attached to an outer work surface.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile