Window tilt latch

This invention relates generally to windows and window-mounting apparatus, and more particularly to vertically slidable windows such as the type generally known as "single-hung" or "double-hung" window units, including the jamb liners in which they are slidably mounted. More particularly still, the invention relates to slidable windows of the general type just noted which are mounted to be pivotally tiltable away from their jamb liners for ease of cleaning, etc. An invertably mountable device having a generally hollow housing which mounts a movable latch member that is preferably biased toward latching engagement with an adjacent window jamb liner by a spring disposed within the housing. The housing preferably comprises a pair of mirror-image shells which fit together to form an enclosure, and provide an internal pivot mount for the latch member, and the housing has an opening through which the latch member projects. The latch member preferably carries a finger grip/thumb abutment member which facilitates movement of the latch member by an operator, and the grip/abutment member and latch member are preferably configured to permit mounting of the grip/abutment on either side of the latch member, to facilitate invertable mounting of the latch member. The latch member and jamb liner preferably provide a detent structure for secure interengagement.