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US 6,789,740 B2Granted
Rail mounting assembly
AssigneeAdvanced Track Products, LLC
InventorWilbur F. Osler
Life of this patent
Estimating the term…
Abstract
Rail mounting assembly of the type in which a top plate is secured to a frame by an elastomer body surrounding the top plate and bonded to both the top plate and the frame. The rounded ends of the top plate and frame receive the elastomer in gaps between downwardly and inwardly inclined surfaces while the elastomer between the longitudinal flanks of the frame and top plate has downwardly open voids which are narrower toward the end of the top plate and wider at a midpoint.
Claims14
A rail mounting assembly comprising:
- an elongated metal frame having a generally planar bottom surface adapted to rest upon a support, a pair of outwardly convex curved end members and a pair of mutually parallel longitudinal members, said members surrounding an opening of said frame, said end members having downwardly and inwardly inclined flanks delimiting said opening, said longitudinal members having flanks generally perpendicular to said bottom surface delimiting said opening;
- an elongated top plate received in said opening in said frame and having an upper surface forming a platform for receiving a rail and formations flanking said platform for securing said rail on said platform, said top plate having a pair of outwardly convex curved ends spacedly juxtaposed with said end members and a pair of longitudinal sides spacedly juxtaposed with said longitudinal members, said ends having downwardly and inwardly inclined flanks forming respective gaps widening upwardly and downwardly with said downwardly and inwardly inclined flanks of said end members, said longitudinal sides having flanks defining respective gaps with the flanks of said longitudinal members;
- and
- a body of an elastomer received in said gaps, bonded to and fully covering said flanks and resiliently holding said frame and top plate together.
1 more element
A rail mounting assembly comprising:
- a metal frame;
- a plate received in said metal frame and formed with a surface to which a rail can be secured;
- and
- a body of an elastomer extending all around said plate and bonded to said plate and said frame, said body being formed with voids in the forms of downwardly open crevices distributed between a periphery of said body and said frame, said voids opening and closing in response to forces between said plate and said frame and controlling distribution of load to said frame, said frame having a pair of opposite longitudinal members and said plate having flanks generally parallel to said longitudinal members and spaced from said members across longitudinal gaps, said body bridging said gaps, said crevices being provided in said body in said gaps and extending substantially the full lengths of said flanks.
1 more element
Dependencies are inferred from the claim text.