Protective cover with cord sealing means for electrical wiring devices

Claim 1

A PROTECTIVE COVER ADAPTED TO BE MOUNTED ON AN ELECTRIC CONNECTOR COMPONENT HAVING AN ELECTRIC CORD WIRED TO ITS COMPRISING A RESILIENT UNITARY BODY HAVING: A PORTION FOR SURROUNDING AND GRIPPING THE CONNECTOR COMPONENT; SEALING MEANS AT ONE END OF THE BODY ARRANGED TO BE DISPOSED WHERE THE FRONT FACE OF THE CONNECTOR COMPONENT ON WHICH IT IS ADAPTED TO BE MOUNTED IS DISPOSED WHEN IT IS MOUNTED ON THE CONNECTOR COMPONENT; AND A CORD-ENGAGING PORTION AT THE OTHER END OF THE BODY FOR RECEIVING AND SNUGLY EMBRACING THE ELECTRICAL CORD IN SEALING CONTACT COMPRISING A GENERALLY UNIFORMLY TAPERED CYLINDRICAL PORTION TERMINATING IN A REDUCED REARWARD OPEN END AND HAVING A PLURALITY OF TRANSVERSE RADIALLY INWARDLY EXTENDING RIBS FORMED ON ITS INTERIOR ADJACENT THE OPEN END, AN ANNULAR VALLEY FORMED BETWEEN EACH PAIR OF ADJACENT RIBS, AND MARKS FORMED ON THE EXTERIOR OF SAID TAPPERED PORTION WHICH ARE SUBSTANTIALLY RADIALLY ALIGNED WITH SAID VALLEYS, WHEREBY ONE OR MORE RIBS MAY BE REMOVED FROM SAID COVER BY SELECTIVELY CUTTING OFF THE REARWARD PORTION OF THE BODY AT SAID MARKS.