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:
Oct. 21, 1997
Filed:
Dec. 08, 1995
Nabil L Mina, Roselle, IL (US);
Appleton Electric Company, Chicago, IL (US);
Abstract
A corrosion resistant hub with a metal insert and an elastomeric outer shell forms a coupling to join a conduit to an enclosure. The metal insert which serves as a grounding mechanism for the conduit comprises internal threads, located near the conduit receiving end of the insert, to connect the conduit to the hub, and external threads, located at the wire exiting end of the insert to connect the hub to the enclosure. A shell made of semi-rigid elastomeric material is molded onto the outer surface of the metal insert. The shell has an annular flange, a hexagonally shaped torquing section and a collar. The annular radial flange forms a reliable seal of the interface between the insert and the enclosure. The collar has a lip that forms a first seal of the junction between the conduit and the insert and internal threads that engage the conduit to provide a second seal of the junction between the conduit and the insert. The hub also has a bushing which is unitary with the shell via an aperture in the insert. The bushing is molded into the inner surface of the metal insert at the wire exiting end of the insert.