Fluid sprinkling – spraying – and diffusing – With means causing intermittent interruption of supply to... – Ground wheel controlled intermitter
Reexamination Certificate
2005-08-09
2005-08-09
Hwu, Davis (Department: 3752)
Fluid sprinkling, spraying, and diffusing
With means causing intermittent interruption of supply to...
Ground wheel controlled intermitter
C239S525000, C239S526000, C239S532000, C239S530000, C239S280000, C239S548000
Reexamination Certificate
active
06926209
ABSTRACT:
A device for the cleaning and maintenance of the cooling fins of a heat exchanger of an air conditioner unit includes a pistol-grip water nozzle having a water inlet providing a water pressure of between about 40 to about 80 pounds per square inch (about 300 cm Hg), the nozzle having a threaded outlet. The device also includes a hose adapter proportioned for securement to the nozzle outlet, the adapter having an outlet proportioned for receipt of a threaded inlet. Central to the inventive device is an elongate segment of cylindrical tubing having the threaded inlet as its inlet. The tubing segment includes a virtual vertical plane of symmetry defining respective left and right hollow semi-cylinders of the tubing, an outer lateral side of one of the semi-cylinders having an axial sequence of apertures in a line defining a right angle to the plane of symmetry, each having a diameter of between about 0.3 and about 0.6 millimeters and having respective axial separations of between about 4 and about 9 millimeters. The elongate segment of tubing is about 51 centimeters long and includes an end cap sealing and outlet thereof.
REFERENCES:
patent: 4083495 (1978-04-01), Sharp
patent: 4095746 (1978-06-01), Anderberg et al.
patent: 4930706 (1990-06-01), Merlin
patent: 5653392 (1997-08-01), Wells
patent: 6378791 (2002-04-01), Perry et al.
Hwu Davis
Silverman M. K.
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