Pulling rolls for use in manufacturing sheet glass

Details Pulling rolls for use in manufacturing sheet glass Pulling rolls for use in manufacturing sheet glass

2005-05-24

2005-05-24

Jimenez, Marc (Department: 3726)

Roll or roller

Axially stacked annular members

C492S047000, C492S050000, C029S895210, C029S895220

Reexamination Certificate

active

06896646

ABSTRACT:
Pulling rolls (13) for glass ribbons (11) are provided. The rolls include a shaft (17), a plurality of heat-resistant discs (15) mounted on the shaft in face-to-face contact, and a pair of fittings (25or25,31) affixed to the shaft which apply an axial compressive force to the discs. The axial compressive force gives the portions (27) of the roll surface (33) which contact the glass ribbon during use a Shore D hardness at room temperature of between 30 and 55. The rolls achieve a long service life without applying excessive force to the glass ribbon or generating high levels of particulate contamination.

REFERENCES:
patent: 3116053 (1963-12-01), Ericsson
patent: 3334010 (1967-08-01), Moore
patent: 3338696 (1967-08-01), Dockerty
patent: 3682609 (1972-08-01), Dockerty
patent: 3853525 (1974-12-01), Gorman
patent: 4397673 (1983-08-01), Stevens
patent: 4533581 (1985-08-01), Asaumi et al.
patent: 4872247 (1989-10-01), Nakamura et al.
patent: 5989170 (1999-11-01), Hart et al.
patent: 195 04 044 (1995-09-01), None
patent: 1382443 (1975-01-01), None
English translation of DE 195 04 044 A (Reference 9 above).

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