Zipper foot attachment for sewing machines

Claim 1

A FOOT ATTACHMENT DEVICE SO ARRANGED THAT A FOOT IS ABLE TO BE SECURED TO ANY SELECTED ONE OF A PLURALITY OF DIFFERENT TYPES OF SEWING MACHINE PRESSER BARS, SAID DEVICE COMPRISING: (A) A FOOT COMPONENT COMPRISING A FOOT HAVING AN ANKLE PORTION FIXED TO, AND BEING UPSTANDING FROM, THE HEEL THEREOF, A FORKED MEMBER FIXED TO SAID ANKLE AND HAVING TWO REARWARDLY EXTENDING SPACED TINES TO DEFINE A SLOT OPENING THEREBETWEEN, BY WHICH TINES SAID FOOT COMPONENT CAN BE SECURED TO A FIRST SELECTED PRESSER BAR BY HOLD SCREW MEANS WHICH REACHES THROUGH SAID SLOT OPENING AND ENGAGES SAID TINES IN A MANNER TO HOLD SAID FOOT COMPONENT TO SAID PRESSER BAR, (B) AN ADATPER BY WHICH SAID FOOT COMPONENT CA BE SECURED TO A SECOND SELECTED PRESSER BAR DIFFERENT FROM SAID FIRST PRESSER BAR, SAID ADAPTER COMPRISING MEANS TO SECURE SAID ADAPTER TO SAID FOOT COMPONENT AND A BODY PORTION DEFINING A VERTICAL RECESS IN ALIGNMENT WITH AND OPENING INTO THE SLOT OPENING BETWEEN SAID TINES TO ALLOW SAID SECOND PRESSER BAR TO EXTEND THERETHROUGH SO AS TO RECEIVE AND ENGAGE SAID SECOND PRESSER BAR, HOLD SCREW MEANS, SAID BODY PORTION PRESENTING A LATERALLY FACING SURFACE PORITON HAVING A LATERALLY ALIGNED OPENING RECEIVING SAID HOLD SCREW MEANS IN A MANNER THAT SAID ADAPTER CAN BE PROPERLY SECURED TO SAID SECOND PRESSOR BAR BY SAID HOLD SCREW MEANS PASSING THERETHROUGH AND INTO ENGAGEMENT WITH SAID PRESSER BAR SO AS TO CAUSE SAID BODY PORTION TO PROPERLY ENGAGE SAID SECOND PRESSER BAR.