Patent ID: 7219469

Claim:
A window or door lock system, said system comprising a frame mounted to a building, said frame including first and second side jambs, a frame closure member having a first side edge pivotally mounted to said first side jamb for opening and closing said closure member relative to said frame, said closure member having a second side edge which locates adjacent said second side jambs of said frame when said closure member is closed, said second side edge including a first lock part, said second side jamb of said frame including a channel extending lengthwise thereof, said channel having a channel mouth along the length of said channel and facing into said frame and undercut channel regions to each side of said channel mouth, a slide bar slideably fitted in said channel and a second lock part secured to said slide bar, said second lock part protruding through said mouth of said channel and when said closure member is closed with the frame said slide bar sliding said second lock part into and out of locking engagement with said first lock part on said second side edge of said closure member.