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US 7,441,811 B2Granted
Casement window lock
OwnerBarry G. Lawrenceinventor
Life of this patent
Estimating the term…
Abstract
The present invention relates to a casement window locking device having improved function, including improved strength, security, and durability. The invention provides a simple, elegant casement window lock having an extended operating range, is economical to manufacture, and uses few parts.
Claims21
A locking device, comprising:
- a handle comprising a grip and a raised thumb on opposite ends of said handle, said thumb having a rounded end and a flat end;
- a housing comprising a face plate and a base plate, said base plate having a substantially round anchor peg about its center;
- and
- a striker comprising a hook portion and an aft portion on opposite ends of said striker, said aft portion defining therein a variably contoured aperture having first, second, third, and fourth recesses,
- wherein said anchor peg seats within said third recess of said variably contoured aperture in an unlocked position and seats within said fourth recess of said variably contoured aperture in a locked position.
2 more elements
A casement window locking assembly, comprising:
- a substantially rectangular window frame;
- a window mounted within said frame, said window having substantially parallel horizontal and vertical sashes;
- a keeper mounted about said window sash;
- and
- a locking device mounted about said frame and positioned adjacent said keeper, said locking device itself comprising:
- a handle comprising a grip and a raised thumb on opposite ends, said thumb having a rounded end and a flat end;
- a housing comprising a face plate and a base plate, said base plate having a substantially round anchor peg about its center;
- and
- a striker comprising a hook portion and an aft portion on opposite ends, said aft portion defining therein a variably contoured aperture having first, second, third, and fourth recesses,
- wherein said anchor peg further comprises a threaded aperture for accepting a fastener whereby said fastener secures together said handle, said striker, and said housing.
7 more elements
A locking device, comprising:
- a handle comprising a grip and a raised thumb on opposite ends of said handle, said thumb having a rounded end and a flat end;
- a housing comprising a face plate and a base plate, said base plate having a substantially round anchor peg about its center;
- and
- a striker comprising a hook portion and an aft portion on opposite ends of said striker, said aft portion defining therein a variably contoured aperture having first, second, third, and fourth recesses,
- wherein said anchor peg seats within said third recess of said variably contoured aperture in an unlocked position and seats within said fourth recess of said variably contoured aperture in a locked position.
2 more elements
Dependencies are inferred from the claim text.