Combination cam lock/tilt latch and latching block therefor with added security feature

• US 7,147,255 B2
• Filed: 08/29/2003
• Issued: 12/12/2006
• Est. Priority Date: 04/05/2001
• Status: Expired due to Fees

• Current Assignee: 420820 Ontario Limited
• Original Assignee: 420820 Ontario Limited
• Inventors: Davies, Sean, Goldenberg, Shaul
• Primary Examiner(s): Glessner, Brian E.
• Assistant Examiner(s): Lugo, Carlos
• Application Number:
  US10/650,713
• Publication Number:
  US 20040036300A1
• Time in Patent Office: 1,201 Days
• Field of Search: 292/241, 292/340, 292/DIG.20, 292/240, 292/341.18, 292/341.12, 292/341.13, 494/49, 494/51, 491/50, 492/60, 491/58, 491/57, 491/76, 491/81, 491/45
• US Class Current: 292/241
• CPC Class Codes: E05B 17/22 Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators E05B39/00 - E05B45/00 take precedence
• CPC Class Codes: E05B 45/083 with contact making either in the striking plate or by movement of the bolt relative to the striking plate
• CPC Class Codes: E05B 63/14 Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other locks having bolts with multiple head E05B15/108; with provision for latching E05B59/00, E05B61/00
• CPC Class Codes: E05B 65/0841 and parallel to the sliding direction of the wings
• CPC Class Codes: E05B 65/0876 cooperating with the slide guide, e.g. the rail
• CPC Class Codes: E05C 1/14 the handle or member moving essentially towards or away from the plane of the wing or frame
• CPC Class Codes: E05C 3/046 in the form of a crescent-shaped cam hooks E05C3/045
• CPC Class Codes: E05C 3/06 with operating handle or equivalent member moving otherwise than rigidly with the bolt
• CPC Class Codes: E05D 15/22 allowing an additional movement E05D15/20 takes precedence
• CPC Class Codes: E05Y 2201/22 Locks
• CPC Class Codes: E05Y 2900/148 Windows
• CPC Class Codes: Y10S 292/20 Window fasteners
• CPC Class Codes: Y10T 292/0802 Sliding and rotary
• CPC Class Codes: Y10T 292/0803 Sliding and swinging
• CPC Class Codes: Y10T 292/0814 Double acting
• CPC Class Codes: Y10T 292/1039 Swinging and camming
• CPC Class Codes: Y10T 292/1041 Rigid operating means
• CPC Class Codes: Y10T 292/68 Keepers

Abstract

A latch reinforcing block for engagement with the nose portion of any tilt latch assembly and preferably with the above-mentioned camlock/tilt latch combination, the block comprising a top and bottom and having extending from proximate the top to proximate the bottom there-through fastening portions to fasten the reinforcing block within the track of a preferred window assembly, the reinforcing block having disposed proximate the top thereof at least one cutout, notch or pocket extending towards the bottom and for receipt of a corresponding nose portion of the latch assembly in order to pass loads such as wind loads or the like to the frame section to which the reinforcing block is attached.

Claims

1. A single hung or double hung window assembly having a frame and comprising a latch reinforcing block and a tilt latch assembly, said block for engagement with a nose portion of the tilt latch assembly, said block having a top and bottom and having extending from proximate the top to proximate the bottom there-through fastening portions to fasten said reinforcing block to the frame of the window assembly and within a track of the window assembly proximate the bottom thereof, said reinforcing block having disposed proximate the top thereof at least one cutout, notch or pocket extending towards the bottom of the block and for receipt of the nose portion of the latch assembly to pass loads, such as wind loads, to the frame of the window assembly to which the reinforcing block is attached, the reinforcing block further comprising a counter balance spring mounting block for engagement with a counter balance spring of the single or double hung window assembly, said reinforcing block having means for engaging the counter balance spring and for fastening thereto, wherein the counter balance spring is mounted on or fastened to the reinforcing block fastened to a sash track allowing motion of the spring while the block is fixed into position relative to said track.

2. The window assembly of claim 1 wherein said mounting block for the counter balance spring is be adapted to include at least one reed switch element for a security system, pre-wired thereto and within the sash, so as to enable the security system to be installed in the window assembly as it is manufactured and the corresponding magnet is installed with the nose portion of a tilt latch.

3. The window assembly of claim 1 wherein the reinforcing block is installed within the window assembly and further comprises a body mounted within said track having said at least one cut-out, notch, or packet for receipt of the nose portion of the tilt latch, said body having disposed therein means to enable a security system to be armed, whether the latch nose is in the locked or in the latched position.