Electrocardiographic apparatus with recording pen protector
AssigneeCambridge Instrument Company, Inc.
InventorsTimothy C. Pegnim, Larry R. France, John G. Sherman, Claude MacQuignon
Life of this patent
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Abstract
Electrocardiographic apparatus wherein said apparatus is contained within a wholly insulated enclosure and the recording assembly including writing pens is provided with means for placing an insulating barrier in a position to protect the pens when replenishing the recording paper.
Claims8
In electrocardiographic apparatus including means for amplifying and recording signals from a patient, a housing of insulating material wholly enclosing said amplifying means, recording means including a platen roller for retaining and feeding a recording medium about said roller, at least one pen having means for activating it in response to said signals for recording them on said medium as the latter passes over said platen roller, means for displacing said platen roller from engagement with said pen for replenishment of said medium and an insulating barrier movable to shield said pens from accidental grounding in response to the displacement of said platen roller.
Dependencies are inferred from the claim text.