Measuring and testing – With fluid pressure – Dimension – shape – or size
Reexamination Certificate
2007-06-27
2009-08-25
Fitzgerald, John (Department: 2856)
Measuring and testing
With fluid pressure
Dimension, shape, or size
Reexamination Certificate
active
07578168
ABSTRACT:
A gas gauge for sensing distance to an object includes a gas supply system and a nozzle that supplies the gas from the gas supply system to a space between the nozzle and the object. For example, the gas supply system supplies the gas with a flow rate that corresponds to a flow in a transitional region between laminar flow and turbulent flow. A surface of the nozzle may be roughened so as to increase a friction factor across the surface, which increases gas pressure drop and also a gain of the nozzle. Noise generated by the increased flow rate may be attenuated using one or more strategically placed Helmholtz attenuators and/or snubbers.
REFERENCES:
patent: 2276036 (1942-03-01), Hanna et al.
patent: 2707389 (1955-05-01), Fortier
patent: 2986924 (1961-06-01), Becker
patent: 3127764 (1964-04-01), Hudson
patent: 3482433 (1969-12-01), Gladwyn
patent: 3495442 (1970-02-01), Rejsa
patent: 3513688 (1970-05-01), Thibault
patent: 3545256 (1970-12-01), Beeken
patent: 3597961 (1971-08-01), Pinkstaff
patent: 3709027 (1973-01-01), Beeken
patent: 3881357 (1975-05-01), Sahlin
patent: 3894552 (1975-07-01), Bowditch
patent: 3942556 (1976-03-01), Wojcikowski
patent: 4059130 (1977-11-01), Cohen
patent: 4090406 (1978-05-01), Rodder
patent: 4142401 (1979-03-01), Wilson
patent: 4203022 (1980-05-01), Couch et al.
patent: 4348889 (1982-09-01), Haynes et al.
patent: 4391127 (1983-07-01), Hawkins
patent: 4421970 (1983-12-01), Couch, Jr.
patent: 4458519 (1984-07-01), Day et al.
patent: 4550592 (1985-11-01), Dechape
patent: 4581918 (1986-04-01), Duhrin
patent: 4607960 (1986-08-01), Wulff
patent: 4912410 (1990-03-01), Morley
patent: 4953388 (1990-09-01), Barada
patent: 5022258 (1991-06-01), Wilson
patent: 5298073 (1994-03-01), Wilson
patent: 5317898 (1994-06-01), Nemeth
patent: 5789661 (1998-08-01), Fauque et al.
patent: 6029361 (2000-02-01), Newman
patent: 6220080 (2001-04-01), Fauque
patent: 6807845 (2004-10-01), Halbinger et al.
patent: 7017390 (2006-03-01), Vogel
patent: 7134321 (2006-11-01), Galburt et al.
patent: 7140233 (2006-11-01), Vogel
patent: 2004/0118183 (2004-06-01), Gajdeczko et al.
patent: 2004/0118184 (2004-06-01), Violette
patent: 2005/0044963 (2005-03-01), Lyons
patent: 34 09 165 (1985-09-01), None
patent: 34 09 168 (1985-09-01), None
patent: 1 431 709 (2004-06-01), None
patent: 57191507 (1982-11-01), None
Moody, Lewis F., “Friction Factors for Pipe Flow,” Transactions of the American Society of Mechanical Engineers, 1944, pp. 671-684, vol. 66, The American Society of Mechanical Engineers, New York, NY.
Novelty Search for Sweden Application No. SE 2008 01129 filed May 9, 2008, 4 pgs.
European Search Report and Written Opinion mailed Sep. 3, 2008 for Application No. 08159163.8-2213, 5 pgs.
ASML Holding N.V.
Fitzgerald John
Sterne Kessler Goldstein & Fox P.L.L.C.
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