B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
254/150
B66F 3/24 (2006.01) B29D 22/00 (2006.01) B66F 3/35 (2006.01)
Patent
CA 1237419
ABSTRACT OF THE DISCLOSURE A rectangular pneumatic lifting pad of the type made from hot-vulcanized, web-like and not previously vulcanized rubber material and having an inside airtight bladder comprised of a first reinforced layer of flat rubber material and a similar second reinforced layer, said first and second reinforced layers having their respective reinforcing strands running parallel to a first edge of the rectangle and to the second edge perpendicular thereto, respectively, CHARACTERIZED IN THAT the first reinforced layer comprises first and second blanks, the first blank being folded transversely to the direction of reinforcing strands to have both edges of its folded sides preferably just touching, and the second blank being disposed underneath and being substantially co- extensive with the two folded sides of the first blank without extending fully between said first edge of the rectangle and its parallel, opposite edge; and the second reinforced layer comprises third and fourth blanks that are similarly constructed, configured and disposed as said first and second blanks but in relation to said second edge of the rectangle.
475409
Gowling Lafleur Henderson Llp
Vetter Manfred
LandOfFree
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