Animal guard for tile drain pipe

Claim 1

AN ANIMAL STOP DEVICE FOR DRAIN PIPE COMPRISING: A GENERALLY U-SHAPED STRAP MEMBER HAVING INNER AND OUTER LEGS CONNECTED BY A BIGHT PORTION AND PROPORTIONED TO BE POSITIONED OVER THE OPEN END OF A SECTION OF PIPE WITH SAID INNER AND OUTER LEGS EXTENDING AXIALLY OF THE PIPE AND RESPECTIVELY ENGAGING THE INNER AND OUTER SURFACES THEREOF, SAID INNER LEG HAVING A GENERALLY U-SHAPED PORTION FORMED THEREIN AND DEPENDING THEREFROM AT A POINT INTERMEDIATE ITS END AND SAID BIGHT PORTION; A GENERALLY CIRCULAR BAFFLE PLATE MEMBER FORMED OF RELATIVELY THIN SHEET MATERIAL AND HAVING AN OPENING FORMED THEREIN ADJACENT ITS PERIPHERY, SAID U-SHAPED PORTION OF SAID INNER LEG EXTENDING THROUGH SAID OPENING IN SAID BAFFLE PLATE AND PIVOTALLY SUSPENDING THE SAME THEREFROM FOR PIVOTAL MOVEMENT IN A DIRECTION TOWARD SAID INNER LEG AND BIGHT PORTION, THE DIAMETER OF SAID BAFFLE MEMBER BEING LESS THAN THE SPACING BETWEEN SAID POINT AND SAID BIGHT PORTION; AND A STOP MEMBER FOR PREVENTING MOVEMENT OF SAID BAFFLE PLATE IN THE OPPOSITE DIRECTION, SAID STOP MEMBER COMPRISING AN INTERMEDIATE PORTION SECURED TO SAID INNER LEG BETWEEN SAID U-SHAPED PORTION AND THE END THEREOF AND TWO RESPECTIVELY OUTWARDLY INCLINED LEGS DEPENDING FROM THE ENDS OF SAID INTERMEDIATE PORTION AND EXTENDING IN CLOSE PARALLEL RELATIONSHIP WITH SAID BAFFLE PLATE MEMBER, SAID STOP MEMBER LEGS BEING SUBSTANTIALLY SHORTER THAN THE DIAMETER OF SAID BAFFLE PLATE MEMBER AND RESPECTIVELY EXTENDING AT LEAST TO POINTS ADJACENT THE PERIPHERY THEREOF.