Composite thermoplastic filler for ballast cans for use with flu

Details Composite thermoplastic filler for ballast cans for use with flu Composite thermoplastic filler for ballast cans for use with flu

1994-01-06

1995-01-31

Dawson, Robert A.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

174DIG2, 264 37, 264115, 264125, 264DIG69, 336 96, 338 20, H01L 2328, H05K 506, B29C 6716

Patent

active

053860861

ABSTRACT:
A process for fabrication of a filler for a ballast container used with frescent lighting employs a mixture of a high-density polyethylene in powdered form (derived from recycled milk containers) and dry sand. After loading the specified mixture into a ballast container to fill the unfilled volume remaining after the ballast container has electrical components installed, a closure means is placed on the loaded and filled ballast container, subsequently heated for a predetermined time period to achieve melting of the specified high-density polyethylene and dry sand mixture. After cooling the melted, high-density polyethylene, the high-density polyethylene and dry sand mixture fuses into a solid mass. A preferred mixture is comprised of a 50/50 weight percent ratio of the specified high-density polyethylene and dry sand.

REFERENCES:
patent: 2674646 (1954-04-01), Schoch
patent: 2882505 (1959-04-01), Feder
patent: 2948930 (1960-08-01), Herbst
patent: 3161843 (1964-09-01), Hodges et al.
patent: 3319203 (1967-05-01), Haughney
patent: 3403367 (1968-09-01), Holzinger
patent: 3653959 (1972-04-01), Kehr et al.
patent: 4206436 (1980-06-01), Grunert et al.
patent: 4223071 (1980-09-01), Boyer et al.
patent: 5036580 (1991-09-01), Fox et al.

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