Doorstop

Claim 1

A DOORSTOP ADAPTED FOR INSTALLATION IN AN OPENING PROVIDED IN A FLOOR ADJACENT A DOOR, SAID DOORSTOP COMPRISING: (A) A HOUSING INCLUDING A FLANGE AT ITS UPPER END, A CYLINDRICAL BARREL DEPENDING THEREFROM, AND A LONGITUDINALLY SLOTTED SIDE BOSS ON SAID BARREL, SAID FLANGE BEING RADIALLY SLOTTED IN ALIGNMENT WITH THE SLOT IN SAID BARREL, SAID BARREL BEING INSERTABLE IN SAID FLOOR OPENING AND SAID FLANGE ADAPTED TO REST ON THE FLOOR; (B) A STOP POST SLIDABLE IN SAID BARREL BETWEEN AN EXTENDED AND A RETRACTED POSITION, AND HAVING A LATCH SHOULDER CONFRONTING THE LOWER END OF SAID SLOT WHEN SAID STOP POST IS RETRACTED; (C) A SPRING FOR URGING SAID STOP POST UPWARDLY TO PROTRUDE FROM SAID HOUSING; (D) A LATCH LEVER PIVOTALLY MOUNTED IN SAID SLOT AND INCLUDING A LOWER END DIRECTED TOWARD THE BORE OF SAID BARREL, AND AN UPPER RADIALLY OUTWARDLY DIRECTED END FITTING THE SLOT IN SAID FLANGE FOR FOOT ENGAGEMENT; (E) LATCH MEANS AT THE LOWER END OF SAID LATCH LEVER ENGAGEABLE WITH SAID LATCH SHOULDER TO HOLD SAID STOP POST IN ITS RETRACTED POSITION; (F) AND SPRING MEANS BIASING SAID LATCH LEVER TO URGE SAID LATCH MEANS AND LATCH SHOULDER INTO INTERENGAGEMENT, THEREBY TO HOLD SAID STOP POST IN ITS RETRACTED POSITION; (G) THE UPPER RADIALLY EXTENDING END OF SAID LATCH LEVER HAVING A THICKNESS CORRESPONDING TO SAID FLANGE AND URGED BY SAID SPRING MEANS INTO A POSITION FLUSH WITH SAID FLANGE AND PROTRUDING RADIALLY THEREFROM, WHEREBY SAID LATCH LEVER IS PROTECTED FROM ACCIDENTAL MOVEMENT, BUT IS OPERATED ONLY BY PREDETERMINED RADIAL MOVEMENT IN THE PLANE OF SAID FLANGE.