Abstract: A forced-entry resistant sash lock includes a housing, a shaft pivotally mounted to the housing, a cam mounted on the shaft using an elongated opening permitting selective rotational and translational movements, and a separation member secured to the shaft. In the unlocked position, upon shaft rotation in a first direction a cam surface on the separation member engages a follower surface on the cam causing co-rotation of the cam into a non-forced entry-resistant locked position, and upon continued rotation the cam surface moves relative to the follower surface causing cam translation into a forced-entry-resistant locked position through movement of the shaft within the elongated opening, until an engagement surface of the separation member engages a contact surface of the cam, preventing forced reverse cam translation. The cam translation causes a cam stop surface to engage a housing stop surface preventing forced cam counter-rotation.

Abstract: A tamper-resistant sash window lock includes a housing, a shaft, a cam, and a lever member. An interior surface of the housing wall that defines a cavity. A portion of the interior surface of the housing wall is curved about a hole in the housing, with a distal end of the wall portion formed into a lock surface. The shaft is rotatably mounted in the hole, and a hub of the cam is rotatably mounted on the shaft. The cam has a cantilevered arm with a lock surface and an engagement surface. The lever member is fixedly secured to the shaft, for a first side thereof to engage and drive the cam hub in a first rotational direction into a lock position when the shaft is actuated in the first rotational direction, so the lock surface of the cantilevered arm engages the lock surface of the housing preventing forced entry.

Abstract: A vent stop includes: a housing; a tumbler; a biasing member having a first portion secured to the tumbler and a second portion in movable contact with a housing track, to selectively bias the tumbler. Movement of the second portion along the track is coordinated with sequential pivoting of the tumbler between extended, retracted, partially extended, and intermediate positions. In the extended position, a tumbler bearing surface limits opening of the sash member. When toggled from the extended position to the retracted position and subsequently released, outward bias of the tumbler is limited to the partially extended position by contact of the second portion with a track recess. Subsequent contact of the sash member with the deflection surface causes pivoting from the partially extended to the intermediate position, permitting unrestricted sash member opening, release of the second portion from the contact point, and biasing back toward the extended position.

Abstract: A sash window fastener includes: a latch assembly; a lock assembly mounted upon the meeting rail; and a stop assembly mounted to the master frame. The lock assembly includes a pivotable cam to engage a keeper on the master frame to lock the window, and a pivotable follower arm, which interconnects with the latch assembly within the meeting rail, so cam rotation that drives arm rotation also causes translation of the latch. The cam occupies: an extended position to secure the cam to the keeper, with the latch tongue engaging the master frame to prevent tilting, also being positioned below a stop assembly protrusion to redundantly lock the window; a first retracted position permitting sliding of the window; and a second retracted position permitting tilting of the sash window. A slidable stop on the stop assembly dampens sliding sash window movement and subsequently acts as a vent stop.

Abstract: A window vent stop for use in a sliding sash window or a sliding sash door assembly. The vent stop includes a housing and a tumbler. The housing is adapted to be disposed in a recess in a rail or stile of the window/door. This housing includes a cavity with a bottom wall therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of the sliding member, and a retracted position, to allow movement of the sliding member. The tumbler is formed with a protruding spring member for selectively biasing the tumbler. The housing has one or more flexible members extending from each of its end walls to secure the housing within the opening in the sash member.

Abstract: An adjustable stop limits sliding sash window/door travel between a closed position and a safe position, where the safe position is a position less than a full-open position. The stop can be installed upon window/door master frames during initial manufacturing, or as an after-market option while the sash windows/doors are in service in a building. The safety stop may be comprised of a housing and a tumbler being pivotally mounted within a cavity in the housing, with a spring to bias the tumbler out of an opening in the housing. Mounting is by a flange extending from the housing, with spacers of varying thickness that are capable of removably attaching thereon to accommodate sash to master frame height differences. A safety member may be added to either the tumbler or housing to create a double action stop, requiring disengagement of the safety member, prior to toggling of the stop.

Abstract: A sash window fastener includes: a latch assembly; a sash lock assembly mounted upon the meeting rail; and a stop member mounted to the master window frame. The lock assembly includes a pivotable cam to engage a keeper on the master frame to lock the window, and a pivotable follower arm. The arm interconnects with the latch assembly within the meeting rail, so cam rotation that drives arm rotation also causes translation of the latch. The cam may occupy: an extended position to secure the cam to the keeper, with the latch engaging the master frame to prevent tilting, and being positioned below a protrusion on the stop member to redundantly lock the window; a first retracted cam position permitting sliding of the window; and a second retracted position permitting tilting of the sash window. Additional protrusions may be used on the stop member to serve as vent stop positions.

Abstract: A window fastener includes a forced-entry-resistant sash lock and tilt latch assembly. The sash lock is actuated to engage a keeper to lock the closed sash window. The tilt latch assembly permits sliding of the unlocked window, and prevents tilting until the tilt latch assembly is actuated by the interconnected sash lock. The sash lock and tilt latch assembly cooperate with a stop member secured to a master window frame, to limit opening of the window to a position between the closed position and a full open position, through contact of the latch assembly with a portion of the stop member. The sash lock is configured to actuate the latch assembly into a cocked position, permitting window movement beyond the limited position, and selective contact between the latch assembly and stop member that triggers latch assembly repositioning, causing automatic locking of the sash window when moved into the closed position.

Abstract: A sash window fastener includes a lock assembly, latch assembly, and stop member. The lock assembly mounts upon the meeting rail, and includes a pivotable cam to engage a keeper on the master frame, and a pivotable arm that acts as a follower. The arm interconnects with the latch within the meeting rail, so cam rotation controls arm positioning—causing translational movement of the latch. The cam can occupy four positions causing four corresponding latch positions: an extended position securing the cam to the keeper, with the latch engaging the master frame to prevent tilting, and contacts a first stop to redundantly lock the window; a first retracted position permitting sliding of the window, but limited by the slightly retracted latch clearing the first stop but contacting a second stop; a second retracted position permitting sliding beyond the second stop, but preventing tilting; and a third retracted position permitting tilting.

Abstract: A sash window fastener includes lock and latch assemblies, and a fitting. The lock mounts upon the meeting rail, and includes a pivotable cam to engage a keeper on the master frame, and a pivotable arm acting as a follower. The arm interconnects with the latch within the meeting rail, so cam rotation controls arm positioning—causing translation of the latch. The cam can occupy three positions causing three corresponding latch positions: an extended position securing the cam to the keeper, with the latch engaging the master frame to prevent tilting, and also receiving a post of the fitting therein to further secure the window against impact loading; a first retracted position disengaging the cam from the keeper, and permitting sliding of the window into an open position that also elevates the latch member above the post; and a second retracted cam position causing latch member retraction that permits tilting.

Abstract: There is a sweep lock having a housing with a sweep connected to the bottom surface of the housing. The sweep has a handle portion and a tongue portion, and is adapted to move from a first position to a second position, whereby said tongue is in an extended position in one of said first and second positions. The housing has a spring means having first and second ends. The first end is secured to the housing, and the second end is secured to the sweep.

Abstract: A tamper-proof lock includes: a housing, shaft/handle, cam, lever, spring, and plate. The shaft is pivotally mounted in a housing orifice, with the cam pivotally mounted to the shaft. The cam has first and second shaped openings at first and second respective radial positions, and an arcuate recess. The lever is secured to the shaft, and has a protrusion that alternately engages each of first and second ends of the arcuate recess to respectively/selectively drive the cam to rotate/counter-rotate in first and second directions, into locked and unlocked cam positions. The spring biases the plate for a protrusion thereon to be respectively received within each of first and second shaped cam openings, when aligned therewith at those cam positions, and for a curved surface of the plate to be correspondingly received within first and second curved cam recesses, respectively, when aligned therewith, which facilitate withdrawal of the plate protrusion.

Abstract: A sash fastener for securing a slidable and tiltable sash window includes a lock assembly and left-hand and right-hand latch assemblies. The lock assembly is mounted upon the sash window meeting rail, and includes a pivotable cam to engage a keeper on the master frame, a handle to pivot the cam, and a pair of pivotable arms, each extending into the meeting rail. A link selectively connects the two arms, and when actuation of the handle causes the cam to rotate, it may selectively drive one of the arms to pivot, with the link causing the other arm to pivot. The left- and right-hand latch assemblies each include a housing, biasing means, a latch member with an adjustable receiver clip having an opening therein configured to receive one of the arms of the lock assembly, within the meeting rail, with movement of the arms actuating the latch to permit tilting.

Abstract: A clip assembly may safely secure sliding sashes of a window or door during transportation, and, in one embodiment, be comprised of a strap member and a pawl member. The strap member may be comprised of a bumper portion, and a strap portion extending therefrom, where the strap portion may have a plurality of teeth formed within the thickness of the strap. The pawl member may have a pair of sidewalls supported by a top wall and an intermediate wall. The top wall may have a protrusion which includes a plurality of pawl teeth formed to complement the strap teeth, and be located proximate to the intermediate wall. The strap may be introduced through the gap between the top rail of an upper sash and bottom rail of the second sash, to then be inserted into the pawl, and thereby be retained by the respective teeth to secure the sashes.

Abstract: A combination sash lock and tilt latch secures a sash window that is slidable and tiltable with respect to a master window frame. The fastener includes a lock assembly and latch assembly. The lock assembly is releasably mounted upon the sash window meeting rail without screws, using legs received within corresponding openings in the rail. The lock assembly is releasably secured thereto by a spring causing engagement between the legs and rail openings. The lock assembly includes a pivotable cam to releasably engage a keeper on the master frame, and a pivotable arm extending into the meeting rail. The latch assembly includes biasing means and a latch member with a plurality of openings, each configured to receive the post of the lock assembly, within the meeting rail, with the lock assembly installed thereon in any one of a plurality of positions corresponding to said openings in said latch member.

Abstract: A device may limit opening of a sash hingedly coupled to a master frame, and includes: a bracket attached to the sash; a first arm having a first end pivotally coupled to the bracket; a second arm having a first end pivotally coupled to the first arm's second end; means for biasing the second arm into a retracted position; and a release assembly. The release assembly is secured to the master frame and includes a hook pivotable between a first position and a second position, which, in the first position, may be releasably received in an opening in the second end of the second arm when the second arm is in the retracted position, as the sash is closed and received within the master window frame The second arm is disengaged from the hook, permitting full opening of the sash, when the hook is pivoted into the second position.

Abstract: A window fastener includes a forced-entry-resistant sash lock and tilt latch assembly. The sash lock is actuated to engage a keeper to lock the closed sash window. The tilt latch assembly permits sliding of the unlocked window, and prevents tilting until the tilt latch assembly is actuated by the interconnected sash lock. The sash lock and tilt latch assembly cooperate with a stop member secured to a master window frame, to limit opening of the window to a position between the closed position and a full open position, through contact of the latch assembly with a portion of the stop member. The sash lock is configured to actuate the latch assembly into a cocked position, permitting window movement beyond the limited position, and selective contact between the latch assembly and stop member that triggers latch assembly repositioning, causing automatic locking of the sash window when moved into the closed position.

Abstract: A combination sash lock and tilt latch in one integral fastener may suitably secure a sash window that is slidable and tiltable with respect to a master window frame. The fastener includes a lock assembly and latch assembly. The lock assembly is releasably mounted upon the meeting rail of the sash window without screws, using legs received within corresponding openings in the rail. The lock assembly is secured thereto by a biasing member causing engagement between the legs and rail openings. The lock assembly includes a pivotable cam to releasably engage a keeper on the master frame, and a pivotable arm extending into the meeting rail. The latch assembly includes biasing means and a latch member, which includes a fixed funnel member and a flexible funnel member on a distal end of a flexible beam, to blindly engage the lock assembly arm within the meeting rail, when installed therein.

Abstract: A window vent stop for use in a sliding sash window or a sliding door assembly. The vent stop has a housing adapted to be disposed in a recess in the non-movable sash member. This housing includes a cavity with a bottom plate therein. The tumbler has at least one pivot for pivotally securing the tumbler to the housing for movement between an extended position, to prevent movement of the sliding member and a retracted position, to allow movement of the sliding member. Also within the housing the tumbler is formed with a plastic member for selectively biasing the tumbler. The housing has one or more flexible members extending from the end walls of the housing that secure the housing to an opening in a window sash when a portion of the window sash is positioned between the underside of a lip on the housing and the flexible member.