Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue
Patent
1975-07-22
1978-01-24
Lieberman, Allan
Compositions: coating or plastic
Coating or plastic compositions
Bituminous material or tarry residue
106 15R, 238371, C08L 9500, E01B 912, E01B 914
Patent
active
040702014
ABSTRACT:
A railroad tie spike hole plugging material and method of using the same. The material includes a substantially uniform mixture of about 25-75% by volume of a granular abrasive material having a grit size in the range of about 20-100 grit and abrasive to railroad spikes, and about 25-75% by volume of a granular plastic material having a grit size of about 100 grit or less and a plastic temperature in the range of about 120.degree.-350.degree. F. The material is poured into a hole in a tie and when a spike is driven into the hole, the friction between the abrasive material and the spike generates sufficient heat to plasticize the plastic material. Upon cooling, the material firmly grasps the spike.
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patent: 2644741 (1953-07-01), King et al.
patent: 3191864 (1965-06-01), Moses
patent: 3235482 (1966-02-01), Knowles et al.
patent: 3249452 (1966-05-01), Plumb
patent: 3706580 (1972-12-01), Hudson
patent: 3756960 (1973-09-01), Junghahnel et al.
patent: 3776748 (1973-12-01), Richards
patent: 3822137 (1974-07-01), Kemp
patent: 3824109 (1974-07-01), Richards
Norton, Grits and Grinds, vol. 59, No. 7, 1968, p. 15.
The Condensed Chemical Dictionary, Sixth Edition, 1961, p. 123.
Lieberman Allan
Racine Railroad Products, Inc.
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