Sash lock
AssigneeKeeler Corporation
InventorGerard N. Stelma
Life of this patent
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Abstract
This specification discloses a sash lock wherein a catch is mounted on one window sash and a base supporting a latch is mounted on another window sash. The latch has a handle portion and a hook portion. In a locked position, both of the portions of the latch engage the catch, the hook portion from the top and the handle portion through an opening in the catch. The sash lock includes springs to bias the latch into a noninterfering position.
Claims9
A sash lock for two relatively movable components, such as double hung window, comprising:
- a catch means on a first of the two relatively movable components for securing said sash lock to said first movable component;
- a base means on a second of the two relatively movable components for securing said sash lock to said second movable component;
- a latch mounted on said base means for engaging said catch means, said latch including an upper portion and a lower portion, each of said upper and lower portions engaging said catch means thereby securing the two relatively movable components to each other, said upper and lower portions being pivotally connected to each other and said lower portion being pivotally connected to said base means.
A sash lock for two relatively movable components, such as a double hung window, comprising:
- a catch means on a first of the two relatively movable components for securing said sash lock to said first movable component, said catch means including a lip with means for mounting said lip in spaced relationship from the surface of said movable component on which it is mounted, said lip having upper and lower edges spaced from said surface;
- a base means on a second of the two relatively movable components for securing said sash lock to said second movable component;
- a latch mounted on said base means for engaging said catch means, said latch including an upper portion and a lower portion, in locked position one of said upper and lower portions extending over said upper edge of said lip and the other of said portions extending under said lower edge of said lip and each of said upper and lower portions engaging said catch means thereby securing the two relatively movable components to each other;
- and
- means responsive to the movement of one of such portions to a locked position for causing the portions to clamp like a jaw about said upper and lower edges of said lip.
A sash lock for two relatively movable components, such as a double hung window, comprising:
- a catch attached to a first of the two relatively movable components, said catch including an upwardly extending upper lip and a recess under said lip;
- a base attached to a second of the two relatively movable components having a pair of spaced bracket members extending upwardly, each of said bracket members having an elongated, generally horizontal slot extending therethrough;
- and
- a latch including a lower portion, an upper portion, a first pivot pin extending through said horizontal slots and through an opening in said lower portion thereby pivotally connecting said base and said lower portion, a second pivot pin spaced from said first pivot pin extending through openings in said upper and lower portions thereby pivotally connecting said upper and lower portions, a first spring means coupled between said lower portion and said base for biasing said lower portion and said base toward one another about said first pivot pin, a second spring means coupled between said lower and upper portions for biasing said upper and lower portions toward one another about said second pivot pin, said upper portion having a hooked end for engaging said lip of said catch, said lower portion having a projection for extending into said recess of said catch as said lower portion is rotated so that said first pivot pin slides along said elongated slots of said base toward said catch and securely couples said latch to said catch.
Dependencies are inferred from the claim text.