Carriage for infant's seat

Claim 1

A COLLAPSIBLE CARRIAGE ADAPTED TO REMOVABLY RECEIVE AN INFANT''S SEAT HAVINGA BACK WALL, A BOTTOM WALL AND SIDE WALLS COMPRISING WHEN IN OPEN OPERATING POSITION A FIRST GENERALLY U-SHAPED FRAME MEMBER INCLUDING A FORWARD CROSSBAR, A PAIR OF WHEELS ROTATABLY MOUNTED AT GENERALLY U-SHAPED FRAME MEMBER PIVOTALLY SECURED TO SAID FIRST FRAME MEMBER INCLUDING A CROSSBAR REARWARDLY SAID FIRST FRAME MEMBER INCLUDING A CROSSBAR REARWARDLY OF SAID FORWARD CROSSBAR WHEREBY SAID CROSSBARS ARE ADAPTED TO RECEIVE AND SUPPORT SAID INFANT''S SEAT CRADLED THEREBETWEEN, A PAIR OF WHEELS ROTATABLY MOUNTED AT THE END OF EACH LEG OF SAID SECOND FRAME MEMBER, A HANDLE MEANS PIVOTALLY CONNECTED TO SAID SECOND GENERALLY U-SHAPED FRAME MEMBER, A LINKAGE BETWEEN SAID FIRST FRAME MEMBER AND SAID HANDLE, A DETENT LOCKING MEANS ASSOCIATED WITH SAID LINKAGE FOR RETAINING SAID HANDLE MEANS AND SAID FIRST AND SECOND FRAME MEMBERS IN SAID OPEN OPERATING POSITION, AND SAID LINKAGE BEING FREEABLE FROM SAID LOCKING MEANS WHEREBY PIVOTAL COLLAPSING OF SAID HANDLE MEANS WILL SIMULTANEOUSLY CAUSE SAID FIRST FRAME MEMBER TO PIVOT AND SAID FIRST FRAME MEMBER, SAID SECOND FRAME MEMBER AND SAID HANDLE MEANS WILL LIE IN A GENERAL COEXTENSIVE COLLAPSED RELATIONSHIP.