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US 2009/0242529 A1Published application
Method to cut apertures in a material
OwnerDavid G. Groll, William A. Groll +1inventors
InventorsDavid G. Groll, William A. Groll, John Milnthorp
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Abstract
A method is described for the cutting of apertures in a material using a computer, laser control software, input device, laser and an x-y plotting bed. The method is to preferably form apertures in fluid impermeable material including composite materials. The apertures are used as exhaust valves in positive pressure masks to deliver breathable gas to patients and in garments.
Claims16
A method of manufacture for apertures in material comprising:
- entering position information into a computer driven laser cutter control software with an input device,
- entering aperture size information into said software with said input device;
- entering said aperture predetermined shape and size of aperture to be cut,
- setting the power of laser emission;
- positioning a predetermined material on an x-y bed;
- entering a command to run said software to process said position information, said size and said shape of said at least one aperture, energizing said laser;
- and
- cutting at least one aperture in said predetermined material by laser.
5 more elements
A method of manufacture for exhaust valves for a positive pressure mask for with precise and accurate control of air flow comprising:
- entering position information into a computer driven laser cutter control software with an input device,
- entering aperture size information into said software with said input device;
- entering said aperture predetermined shape and size of aperture to be cut with said input device,
- entering a predetermined pattern of apertures and spacing of said aperture with said input device;
- setting the power of laser emission;
- positioning a predetermined material on an x-y plotter bed;
- entering a command to run said software to process said position information, said size and said shape, pattern of said apertures, energizing said laser;
- and
- cutting said plurality of apertures in said predetermined material said plurality of apertures for precise and accurate air flow in a positive pressure mask exhausted through said apertures.
6 more elements
Dependencies are inferred from the claim text.