US Patent No: 6,339,208
Number of patents in Portfolio can not be more than 2000
Method of forming cooling holes
Stats
-
Jan 15, 2002
Issued date -
Jan 19, 2000
filing date -
09/487,856
serial no -
In Force
status
Importance
Loading Importance Indicators...
Abstract
A method of forming cooling holes in a gas turbine engine component. The method includes the steps of forming a hole in the component extending between a first surface of the component and a second surface of the component opposite the first surface and supplying pressurized air to the hole from the second surface of the component. The method also includes the step of sensing a parameter representative of air flow through the hole. Further, the method includes enlarging the hole until the sensed parameter represents a preselected air flow rate through the hole.
Loading the Abstract Image...
First Claim
Related Publications
Loading Related Publications...
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
|
|
|||
| 4,960,970 Method and apparatus for acoustic breakthrough detection | 7 | 1989 | |
| 5,683,600 Gas turbine engine component with compound cooling holes and method for making the same | 20 | 1993 | |
| 5,747,769 Method of laser forming a slot | 23 | 1995 | |
| 5,773,790 Beam blocking material and method for beam drilling and inspecting cooling holes | 16 | 1997 | |
| 6,054,673 Method and apparatus for laser drilling | 18 | 1997 | |
|
|
|||
| 5,049,722 Laser barrier material and method of laser drilling | 19 | 1990 | |
| 5,083,006 Laser drilling of components | 4 | 1991 | |
| 5,140,127 Laser barrier material | 22 | 1991 | |
| 5,222,617 Drilling turbine blades | 29 | 1991 | |
|
|
|||
| 5,837,964 Laser drilling holes in components by combined percussion and trepan drilling | 17 | 1998 | |
|
|
|||
| 5,614,114 Laser system and method for plating vias | 138 | 1994 | |
|
|
|||
| 4,220,842 Method of removing material from a workpiece | 19 | 1977 | |
|
|
|||
| 4,873,414 Laser drilling of components | 34 | 1988 | |
|
|
|||
| 4,941,093 Surface erosion using lasers | 182 | 1986 | |
|
|
|||
| 5,914,060 Method of laser drilling an airfoil | 9 | 1998 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 15, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |