Arris Protection Joint
1 Assignment
0 Petitions
Accused Products
Abstract
The joint comprises a pair (12, 14) of complementary engineering grade polymer injection mouldings. Each moulding is comprised of generally equal length oblique webs (15), set at 60° to a mid-plane (16) of the assembled joint, shorter, inner webs (17) and a longer, outer webs (18). Centrally of each outer web (18) is an aperture (21) and centrally of each inner web is a pin (22) with a step (23) and a pointed head (24). The heads of one moulding clip into the apertures of the other whilst the steps determine their separation gap (25). The trapezium wave shape of the joint provides re-entrants (31) from the plane of the outer webs (18) towards that of the inner webs. Outwards of the re-entrants extend anchoring formations (33). Behind each re-entrant these formations are joined by a tab (34).
10 Citations
47 Claims
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1-27. -27. (canceled)
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28. An arris protection joint for edging the arrises of cured material pourable on opposite sides of the joint prior to curing, the joint comprising:
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an opposed pair of elongate arris members for edging the cured material, the arris members being; complementarily formed along their length with a wave shape, with each member extending across a mid-plane of the joint from one side to the other and back again at successive positions along the joint, whereby on pouring of the curable material it is formed into inter-digitated fingers edged by the arris members and extending through the depth of the material, corresponding to the width of the arris members, and the arris members having; means for anchoring them in the respective repair material on opposite sides of the joint and adaptations enabling their support in the cavity with their top at least substantially flush with the concrete slabs and the arris members are of moulded polymeric material and the arris members have integrally moulded spacers for holding them at a separation from each other and supports complementary with the adaptations of the arris members for their support in the cavity. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47)
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Specification