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. 03, 1997
Filed:
Apr. 01, 1996
James D Jones, Jr, Palatine, IL (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A magnetic drain bolt comprising: a bolt body and a magnet, the bolt body comprises a male-threaded member and a head member, the male-threaded member has an axial bore formed at a bottom end thereof for receiving the magnet, the male-threaded member further has a substantially circular lip extending axially inward at a bottom edge of the axial bore; the magnet consists of a cylindrical base and a cylindrical projecting extremity, the cylindrical base is sized to fit within the axial bore and has a diameter slightly larger than an inner diameter of the circular lip, the cylindrical projecting extremity extends axially from the cylindrical base and has a diameter slightly smaller than an inner diameter of the circular lip and thereby defines an indented circular shoulder along a bottom edge of the cylindrical base and along a top edge of the cylindrical projecting extremity, wherein the cylindrical base is fitted within the axial bore and the circular lip extends over the indented circular shoulder against the top edge of the circular projecting extremity thereby securing the cylindrical base within the axial bore with the circular projecting extremity extending axially beyond the bottom end of the male-threaded member.