Environmentally protected outdoor devices

Details Environmentally protected outdoor devices Environmentally protected outdoor devices

2005-05-31

2005-05-31

Feely, Michael J. (Department: 1712)

Coating processes

Applying superposed diverse coating or coating a coated base

Metal coating

C427S142000, C427S227000, C427S258000, C427S329000, C427S347000, C427S375000, C427S385500, C427S410000, C427S433000, C427S436000, C427S493000

Reexamination Certificate

active

06899925

ABSTRACT:
An improved protective coating, for parking meters or other equipment that is subject to environmental deterioration and/or vandalism, having thereon at least a three layer coating of a composite thickness sufficiently thick to avoid pinholes and sufficiently thin to avoid crazing and cracking due to variations in the ambient environment. The coating has a conventional lower layer of zinc on or proximate to the equipment surface (in the alternative the substrate may be a zinc part); a second layer of a thermosetting polymer that has been applied by a powder coating electrostatic method, and a third, top, coating of an epoxysiloxane polymer. The total coating thickness should preferably not exceed about 6 mils.

REFERENCES:
patent: 5618860 (1997-04-01), Mowrer et al.
patent: 6015613 (2000-01-01), Kinlen et al.
patent: 6203928 (2001-03-01), Lewin
patent: 6419992 (2002-07-01), Lewin
patent: 6610407 (2003-08-01), Homi

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