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US 5,685,582 AGranted
Security lock
OwnerKevin Clair McCartneyinventor
Life of this patent
Estimating the term…
Abstract
A security lock for a sliding door or window assembly is provided. The lock comprises two pivotally connected overlapping bars having a releasable slider mechanism associated with the pivot point. The lock is adapted to sit in or above the track along which the sliding door or window moves.
Claims3
A security device for an assembly fitted within a frame, said assembly having a first stationary closure member in combination with a second slidable closure member, said second member being slidable along a track formed in said frame, which comprises:
- a first elongate bar and a second elongate bar, said bars each having inner and outer ends, said bars being substantially centrally pivotally connected, and said first bar being oriented to overlap said second bar at the inner ends of said bars whereby said first bar extends beyond said pivot point over said second bar so that said second bar is in underlying relationship to said first bar;
- a slider assembly comprising a movable sleeve mounted externally around said second bar and being functional to slide a predetermined distance therealong, said sleeve being slidably mounted in a sleeve holder, said sleeve holder having a first stop member at an outer end thereof;
- a second stop member mounted on said first bar, said second stop member being operative with said central pivot connection whereby said sleeve, said sleeve holder, and said second stop member releasably engage said bars in a locked horizontal position in which said bars are substantially parallel to each other when said sleeve abuts said second stop member and permits disengagement of said bars to an unlocked position in which the bars are oriented at an angle with respect to each other when the outer end of said sleeve abuts said first stop member;
- and
- means associated with the outer ends of said bars for securing one of said bars to said slidable closure member and the second of said bars to said frame.
2 more elements
A security device for locking two relatively slidable structures in position comprising:
- a first bar element having a longitudinal centerline and an inner end and an outer end;
- a first anchor element pivotally connected to the outer end of said first bar element and mountable on a first structure;
- a second bar element having a longitudinal centerline and an inner end and an outer end;
- a second anchor element pivotally connected to the outer end of said second bar element and mountable on a second structure;
- at least one of said first and second structures being movable toward and away from the other structure between a first position and a second position with said first position having a spacing between said first and second structures which is greater than the spacing between said structures in said second position;
- means for pivotally connecting the inner end of said second bar element to said first bar element at a location spaced from the inner end of said first bar element;
- said first and second bar elements pivotally moving between a first orientation in which the longitudinal centerlines thereof extend in essentially the same direction, and a second orientation in which said bar elements extend at an angle with respect to each other, with said bar elements being transversely spaced from each other to overlap each other adjacent to the inner ends thereof when said bar elements are in said first orientation, said first bar element having a top outside surface and said second bar element having a bottom outside surface, said top outside surface being spaced from said bottom outside surface a preset spacing when said bar elements are in said first orientation;
- means slidably mounted on said second bar element for locking said first and second bar elements together in said first orientation and including a sleeve slidably mounted on the outside surface of said second bar element to move between a first location and a second location, said sleeve having a bottom slidably engaging the outside surface of said second bar element and a top spaced from the outside surface of said second bar element by a distance slightly greater than said preset spacing whereby said sleeve can slide onto said first bar element to lock said first bar element to said second bar element when said sleeve is in said second location and said bar elements are in said first orientation.
5 more elements
Dependencies are inferred from the claim text.