F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
16
L
26/156, 189/16
F16L 5/00 (2006.01) H01G 7/00 (2006.01) H02G 3/18 (2006.01) H02G 3/22 (2006.01)
Patent
CA 1137888
TITLE OF THE INVENTION: A NON-RIGID MECHANICAL COUPLING FOR A FIRE-RATED FEED-THROUGH FITTING AND METHOD OF MAKING ABSTRACT OF THE DISCLOSURE A non-rigid mechanical coupling for coupling a head assembly of a feed-through fitting to a slotted wiring conduit inserted in an opening formed in the floor of a building, wherein an apertured conduit flange is provided with plural tabs extending radially inwardly into plural slots formed in a common transverse plane in the conduit such that the conduit flange tabs are loosely retained in the conduit slots to provide a non- rigid mechanical connection therebetween. Assembly of the connection is achieved by forming the slots in the conduit, deforming radially inwardly each axial portion of the conduit between each slot and the end of the conduit, orienting the conduit flange at the end of the conduit in align- ment with the deformed portions of the conduit, sliding the conduit flange onto the conduit until the tabs are seated against the undeformed edge of the slots, and reforming the deformed conduit portions to their original cross-section, whereby the tabs are radially and axially confined by the respective slots.
346075
Hubbell (harvey) Incorporated
Meredith & Finlayson
LandOfFree
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