Back to results
US 5,066,351 AGranted
Hot/cold press forming methods for shaping thermoformable materials
AssigneeThe Boeing Company
InventorFrederick L. Knoll
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeThe Boeing Company
InventorFrederick L. Knoll
Estimating the term…
One method of forming a workpiece made of thermoformable material includes the steps of: (a) supporting a raw workpiece on a suspension tray; (b) moving a pair of relatively hot forming dies into position above the workpiece; (c) closing the hot forming dies against the workpiece to heat the workpiece and to form and shape the workpiece into the desired configuration; (d) opening the hot forming dies and removing the hot forming dies away from the workpiece; (e) moving a pair of relatively cold forming dies into position above and below the workpiece; (f) closing the cold forming dies against the workpiece to cool the workpiece while maintaining the workpiece in the desired configuration; and, (g) opening the cold forming dies and removing the finished workpiece form the suspension tray. Other methods are also disclosed.
A method of forming and shaping a workpiece made of thermoformable material using a first pair of forming means at a first temperature and a second pair of forming means at a second temperature, which comprise the steps of:
A method of forming and shaping a workpiece made of thermoformable material using a first pair of forming means at a first temperature and a second pair of forming means at a second temperature, which comprises the steps of:
A method of producing a finished workpiece by forming and shaping a workpiece made of thermoformable plastic material using a first pair of forming means at a first temperature and a second pair of forming means at a second temperature, which comprises the steps of:
A method of producing a finished workpiece by forming and shaping a workpiece made of thermoformable plastic material using a first pair of forming means at a first temperature and a second pair of forming means at a second temperature, which comprises the steps of:
Dependencies are inferred from the claim text.