Hollow cotton roll
OwnerWilliam A. Larson, Dale P. Wilterinkinventors
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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.
Claims16
An elongate, generally cylindrical, hollow absorbent roll for use with an aspirator comprising:
- a layer of an open mesh fabric defining an inner wall of said roll, said aspirator being insertable within said fabric;
- a layer of an absorbent material surrounding said fabric layer;
- and
- a layer of braided yarn surrounding said absorbent material to retain same.
A method of making an elongate, generally cylindrical, hollow absorbent roll for use with an aspirator comprising the steps of:
- providing a continuous strip of an open mesh fabric;
- forming said open mesh fabric strip into a generally cylindrical shape;
- surrounding said open mesh fabric strip with a continuous length of absorbent material;
- and
- continuously forming a layer of braided yarn around said absorbent strip.
Dependencies are inferred from the claim text.