Hollow strings containing gelatinous oil

Details Hollow strings containing gelatinous oil Hollow strings containing gelatinous oil

1980-07-09

1982-08-17

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57248, 57258, 57295, D02G 336, D01H 1330, D02G 340, D02G 344

Patent

active

043442790

ABSTRACT:
An improved hollow string comprising a hollow core containing gelatinous oil and a wrapping thread, which is used for rackets for ball games, such as tennis, squash, badminton, etc., and into the hollow cavity of which there is charged gelatinous oil of high viscosity which is in a state of gel at normal temperature and has a melting point of 30.degree. C. or higher and fluidity at a temperature of 50.degree. C. or higher.

REFERENCES:
patent: 3465618 (1969-09-01), McIntosh et al.
patent: 3605399 (1971-09-01), Rijswijk
patent: 3745061 (1973-07-01), Champaneria et al.
patent: 3997698 (1976-12-01), Lamberti
patent: 4016714 (1977-04-01), Titsworth
patent: 4288977 (1981-09-01), Csaky

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