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:
Nov. 04, 1997
Filed:
Sep. 12, 1995
Donald J Keating, Perry, OK (US);
Joel B Edwards, Perry, OK (US);
Bradley E Mitchell, Perry, OK (US);
Kelvin P Self, Stillwater, OK (US);
The Charles Machine Work, Inc., Perry, OK (US);
Abstract
An electrical strike sensing system for providing an alarm if the underground boring equipment encounters a potentially hazardous condition. The system senses current carried through the equipment, as well as the voltage between the equipment and a reference. The measured current is converted to a percentage of a reference current, and the voltage is converted to a percentage of a reference voltage. The current and voltage percentages are added, and if the sum exceeds 100%, the alarms are activated. The current and voltage percentages, as well as the date and time of the strike, are stored in a nonvolatile memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile