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US 12,037,823 B2Granted
Window stays
AssigneeASSA ABLOY New Zealand Limited
InventorsDuncan Duff McGregor, Bryce Alan Molloy
Life of this patent
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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.
Claims10
A method of manufacturing a rivet, the method comprising 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.
2 more elements
Dependencies are inferred from the claim text.