Expansible chamber devices – Cylinder detail
Reexamination Certificate
2005-12-08
2008-03-25
Lazo, Thomas E. (Department: 3745)
Expansible chamber devices
Cylinder detail
C029S888060
Reexamination Certificate
active
07347136
ABSTRACT:
An airless sprayer for paint or the like consists of an electric drive unit connected to a piston. Driven by the electric drive unit, the piston reciprocates within the cylinder, thus spraying the paint or the like. Because of the close tolerance between the piston and cylinder (typically about 0.0002 to about 0.0003 inches), the sprayed liquid provides a seal between the piston and cylinder. To prevent this tolerance from increasing to the point of failure, the cylinder is manufactured from nitride hardened steel. A process for manufacturing the airless sprayer is also disclosed.
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Homeright Instructional Packet, “Electric Power-Flo Roller Instructions,” (12 pgs.).
Wagner Instructional Packet, “The Right Tool for the Right Job,” 2001 Wagner Spray Tech., (16 pgs.).
Bruggeman Daniel J.
Kohs Stephen C.
Briggs and Morgan P.A.
Capes Nelson R.
Diversified Dynamics Corporation
Helget Gerald E.
Lazo Thomas E.
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