Appeal No. 2000-2267
Application No. 08/764,576
voltage power regulating and control circuitry mounted in a
sealed explosion proof housing. An air driven turbine is mounted
on the exterior of the housing and drives the generator through a
connection to the generator shaft which extends through and
projects from the housing.
Claim 1 is illustrative of the invention and reads as
follows:
1. A remote power source for an electrostatic paint
applicator comprising a generator, a sealed explosion proof
housing enclosing said generator, said generator having a
drive shaft with an end projecting through an opening in
said housing, said shaft and said housing opening having a
diametrical clearance of no greater than 0.008 inch, an air
turbine located exterior to said housing and connected to
rotate said generator shaft to cause said generator to
generate electrical power, and a circuit enclosed within
said housing adapted to establish a predetermined low
voltage output in response to electrical power from said
generator when said air turbine drives said generator.
The Examiner’s Answer cites the following prior art:
Gardner 508,380 Nov. 07, 1893
Eckert 2,465,436 Mar. 29, 1949
Cowan 3,791,579 Feb. 12, 1974
Mohan et al. (Mohan) 4,242,628 Dec. 30, 1980
Mommsen 4,462,061 Jul. 24, 1984
D’Amato 4,469,956 Sep. 04, 1984
Reeves 4,491,276 Jan. 01, 1985
Gschwender et al. (Gschwender) 5,073,736 Dec. 17, 1991
Lunzer 5,080,289 Jan. 14, 1992
Seewaldt 5,487,782 Jan. 30, 1996
Horn et al. (Horn) 5,491,602 Feb. 13, 1996
2
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