Window vent stop and method

摘要

A vent stop to be used on windows such as double sash windows allows desired ventilation while preventing the window from fully opening for safety reasons. The vent stop includes a lever having a notch for engaging the housing top lip while the stop is in a closed position and for disengaging the top lip when the lever is to be extended for terminating sash movement. Side apertures on the housing which receive axles on the lever are sized to allow both pivotal and longitudinal movement of the lever. A spring keeper maintains a coil spring in position while the lever moves from a closed to an open posture.

主权项

1. A vent stop comprising: a housing, said housing defining a cavity and a side aperture, a lip, said lip surrounding said cavity, a lever, a side axle, said side axle attached to said lever, said side axle contained within said side aperture, a tab, said tab mounted on said lever, said tab extending from said housing when said lever is in a closed position, said lever pivotally mounted within said cavity for outward extension from said cavity, said lever defining a lip engaging notch and a groove, a resilient member, said resilient member contained within said groove, whereby said lever can be urged into said housing to compress said resilient member and said lip engaging notch engaged with said lip to secure said lever therein, whereby depressing said tab displaces said side axle within said side aperture such that said side aperture frictionally guides said side axle both pivotally and longitudinally, resulting in disengagement of said lip engaging notch from said lip; wherein said housing defines an elongated aperture, a lug, said lug attached to said lever, said lug pivotally and longitudinally displaceable within said elongated aperture for guiding said lever during pivoting when said tab is depressed.