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:
Jun. 28, 2011
Filed:
May. 16, 2007
Bernard George Bartels, Ancaster, CA;
Darren Bernard Bartels, Ancaster, CA;
Marc Beaudry, Boucherville, CA;
Darren Van Buuren, Grassie, CA;
Bernard George Bartels, Ancaster, CA;
Darren Bernard Bartels, Ancaster, CA;
Marc Beaudry, Boucherville, CA;
Darren Van Buuren, Grassie, CA;
Abstract
A tubular insert sleeve for an excavated hole and a safety cover fitted to cover an operatively upper end of the insert sleeve are provided to maintain the integrity of an excavated hole and limit access to the hole in order to improve the safety of the public. The sleeve is made of cooperating segments which can easily be separated and which a form a sleeve when assembled. The operatively upper end of the assembled sleeve forms an outwardly extending bell-shaped end of greater outer diameter to define an outwardly extending flange which is more easily grasped for removal of the sleeve from an excavated hole.