Chassis slide mechanism

Claim 1

A SLIDING TRACK ARRANGEMENT FOR SUPPORTING AN ELECTRONIC CHASSIS IN A RACK MOUNTING SAID ARRANGEMENT INCLUDING A PAIR OF TELESCOPING SLIDING MECHANISMS EACH COMPRISING: AN INNER SLIDE MEMBER ADAPTED TO BE CONNECTED TO THE CHASSIS; AN OUTER SLIDE MEMBER ADAPTED TO BE CONNECTED TO THE RACK; AN INTERMEDIATE SLIDE MEMBER COUPLING SAID INNER AND OUTER SLIDE MEMBERS; FIRST LATCHING MEANS MOUNTED ON SAID INNER SLIDE MEMBER AND FACING SAID INTERMEDIATE SLIDE MEMBER, COMPRISING A PAIR OF SLIDEABLE FIRST CATCHES AND A MANUALLY OPERABLE RELEASE LEVER POSITIONED TO SLIDE SAID FIRST CATCHES, SAID INTERMEDIATE SLIDE MEMBER HAVING A LUG FACING SAID INNER SLIDE MEMBER AND POSITIONED TO BE ENTRAPPED BETWEEN SAID FIRST CATCHES WHEN SAID INNER SLIDE MEMBER IS EXTENDED WITH RESPECT TO SAID INTERMEDIATE SLIDE MEMBER; AND SECOND LATCHING MEANS MOUNTED ON SAID INTERMEDIATE SLIDE MEMBER AND FACING SAID INNER SLIDE MEMBER AND INCLUDING A SECOND CATCH OPERABLE THROUGH APERTURES IN SAID INTERMEDIATE AND OUTER SLIDE MEMBERS FOR LOCKING SAID INTERMEDIATE AND OUTER SLIDE MEMBERS IN AN EXTENDED POSITION WITH RESPECT TO EACH OTHER, SAID SECOND LATCHING MEANS INCLUDING MEANS RESPONSIVE TO CLOSURE OF SAID INNER SLIDE MEMBER FOR DISENGAGING SAID SECOND CATCH FROM SAID OUTER MEMBER APERTURE; WHEREBY WITHDRAWAL OF THE CHASSIS FROM THE RACK LOCKS ALL OF SAID SLIDE MEMBERS IN AN EXTENDED POSITION RELATIVE TO EACH OTHER, AND WHEREBY OPERATION OF SAID RELEASE LEVER PERMITS CLOSURE OF SAID INNER SLIDE MEMBER INTO SAID INTERMEDIATE SLIDE MEMBER, THEREBY PERMITTING CLOSURE OF SAID INTERMEDIATE SLIDE MEMBER INTO SAID OUTER SLIDE MEMBER, SAID SLIDE MEMBERS TELESCOPING TO A NESTING, CLOSED POSITION.