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:
Mar. 21, 1989
Filed:
Apr. 29, 1988
John R Lewis, Jr, Chapin, SC (US);
Shakespeare Company, Newberry, SC (US);
Abstract
A breakaway utility pole structure having a tubular base (11) anchored in the ground substantially at ground level and adapted to telescopically secure the bottom end portion of a pole (9), the base (11) having a circumferential shear groove (20) adjacent to its bottom end, and the base being secured in the base by adhesive material (12) and by bolts (21) spaced above the shear groove (20), the shear groove is adapted to cause failure of the base when the pole is subjected to horizontal impact at a predetermined distance above ground level from a vehicle of predetermined weight moving horizontally at a predetermined minimum speed.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile