E - Fixed Constructions – 06 – C
Patent
E - Fixed Constructions
06
C
228/3, 61/2.4
E06C 7/08 (2006.01)
Patent
CA 1244805
ABSTRACT A U-shaped climbing rung to be anchored in a bore hole in a wall, the climbing rung being two parallel legs each leg having two ends, one end of each leg being connected to a transverse central element or tread spaced a predetermined distance below the parallel legs and having the other end for anchoring in a wall, the legs and tread being completely encapsulated in a synthetic protective coat having an outer configuration adapted to present each end of the legs remote the tread for anchoring the climbing rung in the wall, each encapsulated end having an anchor for anchoring the end of each leg, in a wall, and two soft elastic and tightly fitting sealing collars located on the legs spaced from the end of the legs securely anchored in the wall to frictionally slide along the legs to present a sealing face to an abutting wall deforming when abutting the surface of the wall to accommodate the surface configuration of the wall surrounding the bore hole whereby the combination of the anchor for securely anchoring the end of each leg in a wall and the sealing collar thereby precluding water and corrosive material from penetrating the bore hole. According to another aspect of the invention each encapsulated end behind said anchor receives a soft elastic and tightly fitting and slideable sealing collar. At least one surface of either the encapsulated end behind the anchoring means or the inside surface of the sealing collar presents alternating raised rings and annular grooves to frictionally engage and seal the interface between the encapsulated end and the inside surface of the sealing collar. Each sealing collar frictionally slides along each leg to present a sealing face to an abutting wall deforming when abutting the surface of the wall to accommodate the surface configuration of the wall surrounding the bore hole whereby the combination of the anchor for securely anchoring the end of each leg in a wall, the alternating raised rings and annular grooves and the sealing collar thereby precludes water and corrosive material from penetrating the bore hole.
491144
Cassan Maclean
Msu Mississauga Ltd.
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