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:
Feb. 13, 1990
Filed:
Jun. 30, 1988
Francis V Stemporzewski, Jr, Salem, NH (US);
Scully Signal Company, Wilmington, MA (US);
Abstract
The invention comprises a self-proving vehicle grounding system for placing the ground of a transportation vehicle at the same voltage as the ground of a loading rack and is intended for use in conjunction with an overfill protection system. The overfill protection system comprises a sensor unit on the vehicle and a base unit on the rack for disabling the loading equipment when the sensor detects overfill. The invention comprises three parts, a controller unit coupled to the filling station ground, a grounding bolt unit which is coupled to the transportation vehicle and a multi-conductor cable. The controller unit comprises a signal generator which produces a first electrical signal and a signal detector which, when it receives a specified second electrical signal at its input, enables the pumping equipment of the filling station. The grounding bolt unit comprises a signal modifier which, when coupled to the signal generator in the controller unit, modifies the first electrical signal to produce the second electrical signal at the input of the signal detector. A single cable provides the necessary connections between the units of the overfill protection system as well as coupling the modifier circuit of the grounding bolt to the signal generator circuit of the controller unit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile