Double-action, adjustable, after-market sash stop

A 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;
• a biasing member, said biasing member biasing said tumbler second end to pivot outward from said housing;
• said tumbler being capable of pivoting between at least a first position and a second position;
• a portion of said biasing member selectively contacting a portion of a contoured feature on said housing to limit said outward pivotal travel of said tumbler at said first and second positions;
• a mounting flange, said mounting flange extending from said housing;
• said mounting flange being offset from a bottom of said housing;
• said mounting flange comprising a means to secure said stop to a surface;
• a safety member, said safety member being capable of movement relative to said tumbler, said safety member being biased to inhibit pivoting of said tumbler while said tumbler is in said first position, said tumbler pivoting being inhibited until said safety member is disengaged;
• and
• wherein when said tumbler is in said first position, said tumbler bearing surface blocks movement;
• said tumbler permitting movement when in said second position.

A 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;
• a biasing member, said biasing member biasing said tumbler second end to pivot outward from said housing;
• said tumbler being capable of pivoting between at least a first position and a second position;
• a portion of said biasing member selectively contacting a portion of a contoured feature on said housing to limit said outward pivotal travel of said tumbler at said first and second positions;
• a mounting flange, said mounting flange extending from said housing;
• said mounting flange being offset from a bottom of said housing;
• said mounting flange comprising a means to secure said stop to a surface;
• a safety hood, said safety hood being capable of movement relative to said tumbler, said safety hood being biased to block access to said tumbler first end, said tumbler pivoting being inhibited until said safety hood is moved to unblock access to said tumbler;
• and
• wherein when said tumbler is in said first position, said tumbler bearing surface blocking movement;
• said tumbler permitting movement when in said second position.

A method for installing a travel-limiting stop to inhibit full travel of a sliding sash member relative to a master frame that slidably supports said sash member, said method comprising:

• moving said sash member in said master frame from a closed position into a partially open position which is defined by the most extreme travel to be permitted by said stop;
• measuring a height difference between said sliding sash member and an inward facing surface of said master frame to be used in mounting said stop;
• toggling a stop to place said tumbler into said first position;
• when required by said measured height difference, removably attaching one or more spacer blocks onto said stop, wherein a total thickness of said one or more spacer blocks is approximately equal to said mounting flange offset minus said measured height difference plus a minimal clearance amount;
• placing said stop upon one side of said master frame whereby said mounting flange bottom surface contacts said inward facing surface of said master frame, with said tumbler second end being adjacent to a side surface of said master frame, and with said tumbler bearing surface at said second end being proximate to an inner rail of said sliding sash member;
• checking to see if said sash member is free to travel past said housing of said stop while being inhibited by said bearing surface of said second end of said tumbler;
• securing said stop to said master frame at said travel-limiting position using one or more mechanical fasteners.

A stop, for use in limiting travel of at least one sliding sash member, between a closed position and a partially opened position, said partially opened position being a sash position between said closed sash position and a full-open sash position, said stop comprising;

• a housing, said housing comprising a cavity and at least first and second openings interconnecting with said cavity;
• 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;
• a biasing member, said biasing member biasing said second end of said tumbler to pivot outward from said housing;
• a portion of said biasing member selectively contacting a portion of said housing to limit said outward pivotal travel of said tumbler to be capable of occupying at least a first position and a second position;
• a mounting flange, said mounting flange protruding outward from said housing and being offset from said bearing surface;
• said mounting flange comprising a top surface and a bottom surface;
• said mounting flange comprising a means of attachment of said stop;
• a safety button;
• said safety button being slidable within said tumbler between a first position and a second position;
• said first position comprising a position where a portion of said button protrudes out from said tumbler;
• a leaf spring, said leaf spring biasing said safety button into said first button position, said leaf spring comprising a recess, said recess engaging an edge of said housing to inhibit pivoting of said tumbler when said leaf spring biases said button into said first button position;
• and wherein when said button is depressed to be in said second button position, said button causes said recess in said leaf spring to disengage from said housing to permit pivoting of said tumbler from said first tumbler position;
• and
• wherein when said tumbler is in said first position, said bearing surface limiting sash movement;
• and wherein when said tumbler is in said second position, said bearing surface permitting sash movement.