Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Fabric or lattice; e.g. – indeterminate grating
Patent
1986-12-19
1988-09-20
Ridgill, Jr., James L.
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Fabric or lattice; e.g., indeterminate grating
15202, 15217, 15238, A47L 2324, A47G 2702
Patent
active
047715863
ABSTRACT:
A grating bar for floor mats. The bar has two legs that form the walls of a U-shaped profiled strip. Cleaning elements are disposed between these walls, and the latter are provided with openings for holding elements. Provided on the outer surfaces of the walls, between the openings and the free ends of the legs, are projections that can be united to form an element that extends over the entire length of the bar.
REFERENCES:
patent: 945575 (1910-01-01), McPherson
patent: 3451683 (1969-06-01), Oliver
patent: 3467391 (1969-09-01), Elesh
patent: 3913291 (1975-10-01), Dulien et al.
Alveru AG
Ridgill, Jr. James L.
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