Ear-plug

Details Ear-plug Ear-plug

A - Human Necessities

61

F

181/11.5

A61F 11/02 (1980.01)

Patent

CA 1078745

INVENTORS: TORD RUNE LUNDIN AND KALMAN CSIKI TITLE: AN EAR-PLUG ABSTRACT: AN EAR-PLUG COMPRISING A PLUG-LIKE BODY OF FINE GLASS WOOL AND A SURROUNDING CASING OF THIN POLY- ETHYLENE FILM HAVING LOW FRICTION VIS-A-VIS THE AUDITORY CANAL. THE GLASS WOOL IS EXPOSED AT THE SURFACE OF THE EXPANDED END OF THE EAR-PLUG NOT TO BE INSERTED INTO THE AUDITORY CANAL. THE EAR-PLUG IS FIXED AS TO SHAPE BY MEANS OF A CIRCUMFERENTIAL HEAT WELD IN THE POLYETHYLENE FILM LOCATED WHERE THE EXPANDED PART OF THE EAR-PLUG BEGINS.

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