Hollow cotton roll

Details Hollow cotton roll Hollow cotton roll

1979-03-08

1980-11-11

Mancene, Louis G.

Dentistry

Apparatus

Having absorption means or means to isolate tooth or mouth...

433 91, 87 6, 128276, 128269, A61C 514, A61C 1704

Patent

active

042330254

ABSTRACT:
An elongate, generally cylindrical, hollow cotton roll for use with metal or plastic aspirators or suction tubes for keeping an area dry in medicine and dentistry. The roll has an inner layer of an open mesh fabric which receives the end of the aspirator, a layer of cotton or synthetic roving surrounding the fabric layer, and a layer of braided yarn surrounding the roving to retain same. Also disclosed is a machine for manufacturing such a cotton roll in a continuous length.

REFERENCES:
patent: 480471 (1892-08-01), Melotte
patent: 525797 (1894-09-01), Richmond
patent: 1210720 (1917-01-01), Stephan
patent: 1742080 (1929-12-01), Jones
patent: 1744122 (1930-01-01), Keeling
patent: 1766341 (1930-06-01), Kulik
patent: 1930712 (1933-10-01), Girvin
patent: 1985667 (1934-12-01), Nelson et al.
patent: 2644234 (1953-07-01), Scott
patent: 2813051 (1957-11-01), MacHenry
patent: 3203418 (1965-08-01), Johnston

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