초록 ▼

A hand-held, battery-operated rotary blade saw useful for cutting plastic clips or straps which secure a face mask to a football helmet. Several configurations, having differing safety shields, are disclosed. The device is an emergency/rescue tool to quickly remove a face mask from a football helmet

A hand-held, battery-operated rotary blade saw useful for cutting plastic clips or straps which secure a face mask to a football helmet. Several configurations, having differing safety shields, are disclosed. The device is an emergency/rescue tool to quickly remove a face mask from a football helmet allowing access to the face of a football player without removal of the helmet with its concomitant risk of cervical injury.

대표청구항 ▼

A hand-held, battery operated rotary blade saw comprising: a housing, batteries contained within said housing, an electro-mechanical on-off switch, a battery operated motor contained within said housing, electrical connections between the said batteries and said motor through said electro-mechanical

A hand-held, battery operated rotary blade saw comprising: a housing, batteries contained within said housing, an electro-mechanical on-off switch, a battery operated motor contained within said housing, electrical connections between the said batteries and said motor through said electro-mechanical switch, a rotor shaft extending out of said motor through said housing, a rotary saw blade attached to said rotor shaft, and a removable rotary saw blade shield which protects the rotary saw blade from inadvertent contact with objects exterior to the device; wherein: the exterior of said housing serves as a handle, and the surface of said housing provides a detachable housing access cover; and said removeable rotary saw blade shield comprises: a blade cover which is hollow and cylindrical in shape and provides both a blade cover male connector and a blade cover female connector.