Door control mechanism

Claim 1

IN LATCH MECHANISM; A SUPPORT STRUCTURE INCLUDING GUIDE MEANS; A LATCH MEMBER GUIDED BY SAID GUIDE MEANS AND MOVABLE TO LATCHING AND UNLATCHING POSITIONS; A FIRST SPRING MEANS URGING SAID LATCH MEMBER TOWARD SAID LATCHING POSITION; A HANDLE STRUCTURE CONNECTED WITH SAID SUPPORT STRUCTURE FOR SWINGING FROM A RETRACTED POSITION TO AND EXTENDED POSITION AND BEING CO-OPERABLE WITH SAID LATCH MEMBER FOR MOVING THE LATTER TO SAID UNLATCHING POSITION IN OPPOSITION TO SAID FIRST SPRING MEANS IN RESPONSE TO THE SWINGING OF THE HANDLE STRUCTURE TO SAID EXTENDED POSITION; A LOCKING MEMBER ON ONE OF SAID STRUCTURES AND MOVABLE FROM AN INEFFECTIVE POSITION TO AN EFFECTIVE POSITION FOR LOCKING ENGAGEMENT WITH THE OTHER OF SAID STRUCTURES FOR LOCKING SAID HANDLE STRUCTURE IN SAID RETRACTED POSITION; A SECOND SPRING MEANS NORMALLY URGING SAID LOCKING MEMBER TOWARD SAID EFFECTIVE POSITION; MANUALLY OPERABLE MEANS CO-OPERABLE WITH SAID LOCKING MEMBER FOR MOVING THE LATTER FROM SAID EFFECTIVE POSITION TO SAID INEFFECTIVEW POSITION IN OPPOSITION TO SAID SECOND SPRING MEANS TO UNLOCK SAID HANDLE STRUCTURE AND ALLOW SAID HANDLE STRUCTURE TO BE MANUALLY SWUNG TO SAID EXTENDED POSITION, SAID FIRST SORING MEANS BEING REACTIVELY EFFECTIVE TO AUTOMATICALLY RETURN SAID HANDLE STRUCTURE, WHEN RELEASED, FROM ITS EXTENDED POSITION TO ITS RETRACTED POSITION AND COOPERATING SURFACES ON SAID LOCAKING MEMBER AND SAID OTHER OF SAID STRUCTURES FOR MOVING SAID LOCKING MEMBER AGAINST SAID SECOND SPRING MEANS WHEN SAID HANDLE STRUCTURE IS SWUNG FROM ITS EXTENDED POSITION TO ITS RETRACTED POSITION BY SAID FIRST SPRING MEANS.