Adjustable after-market sash window stop

A stop, for use in attachment to a frame that supports a sliding sash member, to thereon be configured to limit travel of the sash member between a closed position and a partially open position, said partially open position being a sash member position between the closed position and a full open position, said stop comprising;

• a housing;
• a tumbler, said tumbler comprising a first end and a second end;
• said tumbler being pivotally mounted to said housing;
• said tumbler second end comprising a bearing surface, said bearing surface transitioning into a curved surface, said curved surface terminating at an apex;
• a biasing member, said biasing member being configured to bias said tumbler second end to pivot outward from a cavity in said housing into an extended position, said tumbler configured for said outward pivotal travel to be limited to said extended position by contact between a push-button portion of said tumbler proximate to its first end and a portion of said housing;
• a portion of said biasing member being configured to selectively contact one or more contoured features on said housing and to engage a portion of said one or more contoured features during said pivotal movement of said tumbler to also releasably limit said outward pivotal travel of said tumbler to a partially extended position, said partially extended position comprising a position where a portion of said curved surface of said tumbler protrudes out from said housing;
• said tumbler configured to be manually actuated out of said partially extended position by actuation of said second end of said tumbler, to thereby permit said biasing into said extended position, after said actuation ends;
• wherein when said tumbler is in said extended position, said bearing surface is positioned to limit movement of the sash member between the closed position and the partially opened position;
• and wherein when said tumbler is in said partially extended position, said tumbler is positioned to permit movement of the sash member between the partially open position and the full open position, by contact of the sash member with said curved surface to thereby cause pivotal movement of said tumbler into a partially retracted position, to result in disengagement of said portion of said biasing member from said portion of said one or more contoured features of said housing, with said tumbler being automatically biased back into said extended position when the sash member is moved back to the partially opened position or back to the closed position or back to any position between the partially open position and the closed position, said partially retracted position comprising a position where a substantial portion of said curved surface of said tumbler second end is positioned within said housing cavity;
• and
• a mounting flange, said mounting flange extending from a wall of said housing and comprising a means to mount said stop.

A stop, for use in limiting travel of a sash member of a sash window or a sash door, by attachment onto the sash window/door master frame during manufacturing of the sash window/door assembly or by attachment onto a sash window/door frame being already manufactured and used in service, said stop being thereon capable of limiting sash travel between a closed position and a partially open position, the partially open position being a sash member position between the closed sash position and a full-open sash member position, said stop comprising;

• a housing, said housing comprising one or more walls to create a cavity therein;
• a tumbler, said tumbler comprising a first end and a second end;
• said tumbler being pivotally mounted in said housing cavity, said tumbler second end comprising a bearing surface, said bearing surface transitioning into a curved surface;
• a biasing member, said biasing member being configured to bias said second end of said tumbler to pivot outward from said housing, said biased pivotal travel of said tumbler configured to normally be limited to a first position or a second position, said tumbler being biased and limited to said first position by contact between a push-button portion of said tumbler proximate to its first end, and a portion of said housing;
• and said tumbler being biased to be releasably limited to said second position by a portion of said biasing member being configured to selectively contact one or more contoured features on said housing and to engage a portion of said one or more contoured features during said pivotal movement of said tumbler, said second position comprising a position where a portion of said curved surface of said tumbler protrudes out from said housing;
• said second end of said tumbler configured to be manually actuated for said tumbler to be actuated out from said second position, to thereby permit said biasing into said first position, after said actuation ends;
• wherein when said tumbler is in said first position, said bearing surface of said tumbler is positioned to limit movement of the sash member between the closed position and the partially open position;
• and wherein when said tumbler is in said second position, said tumbler is positioned to permit further movement of the sash member to the full-open position, by contact of the sash member with said curved surface of said tumbler to thereby cause pivotal movement of said tumbler into a partially retracted position, to result in disengagement of said portion of said biasing member from said portion of said one or more contoured features of said housing, with said tumbler being automatically biased back into said first position when the sash member is moved back to the partially opened position or back to the closed position or back to any position between the partially open position and the closed position;
• and
• a mounting flange, said mounting flange protruding outward from said housing, and comprising a means to mount said stop, said mounting flange and said means to mount said stop configured to permit said stop to be adjustably mounted to an exterior surface of the master frame.