Composite railroad cross-tie

Details Composite railroad cross-tie Composite railroad cross-tie

1990-08-06

1991-10-08

Thibodeau, Paul J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428403, 428404, 428407, 238 54, 238 84, 238 85, 238 92, 523139, B32B 516

Patent

active

050553500

ABSTRACT:
A railroad cross-tie made from sand and recycled thermoplastic containers. To practice the invention the containers made of many thermoplastic materials are granulated and mixed together. The labels and small amounts of residue from the original contents remain on the containers. Sand is dried and coated with an adhesive substance. The coated sand and recycled granulated thermoplastic plastics are mixed and heated in a compression mold to form the railroad cross-tie.

REFERENCES:
patent: 3813044 (1974-05-01), Heinemeyer
patent: 3943089 (1976-03-01), Harpula et al.
patent: 4018722 (1977-04-01), Baker
patent: 4020027 (1977-04-01), Nicholas et al.
patent: 4070201 (1978-01-01), Tenssenske
patent: 4160761 (1979-07-01), Prusinski et al.
patent: 4239665 (1980-12-01), Richards et al.
patent: 4379525 (1983-04-01), Nowicki et al.
patent: 4425384 (1984-01-01), Brownscombe
patent: 4968024 (1990-11-01), Hawkins

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