Window stays
AssigneeASSA ABLOY New Zealand Limited
InventorsDuncan Duff MCGREGOR, Bryce Alan MOLLOY
Life of this patent
Estimating the term…
Abstract
A window stay including a frame mounting plate (10); a sash mounting plate (11); a short arm (12) coupled by pivots at each end to the frame mounting plate (10) and the sash mounting plate (11); and an elongate long arm (13) coupled by pivots at each end to the frame mounting plate (10) and sash mounting plate (11), wherein the stay includes a first stop (33) and a second stop (102) acting as limiters at a fully open position of the window stay.
Claims39
A window stay, including:
- a frame mounting plate;
- a sash mounting plate;
- a short arm coupled by pivots at each end to the frame mounting plate and the sash mounting plate;
- and
- an elongate long arm coupled by pivots at each end to the frame mounting plate and sash mounting plate,
- wherein the stay includes a first stop and a second stop, each acting between the short arm and the frame mounting plate as limiters at a fully open position of the window stay to substantially reduce buckling of the window stay at the fully open position;
- wherein the second stop is a projection from the short arm configured to engage with the frame mounting plate.
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A window stay, including:
- a mounting for a frame mounting plate, wherein the mounting is configured to attach to a window frame, and the mounting includes a bearing surface;
- and
- a long arm including:
- a central portion along a substantial length of the long arm;
- and
- offset portions on either side of the central portion,
- wherein the central portion is substantially flat and configured to substantially bear on the bearing surface near a pivot between the long arm and a sash mounting plate of the window stay at least in a closed position of the window stay.
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A method of manufacturing a rivet including the steps of:
- drawing the rivet in a first direction,
- piercing a central aperture of the rivet;
- and
- blanking an outer diameter of the rivet at a second direction to the first direction;
- wherein blanking the outer diameter of the rivet uses a blanking punch including a chamfer along an outer perimeter of the blanking punch.
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Dependencies are inferred from the claim text.