Chrome-Plated Fastener With Organic Coating
AssigneeMcGard, Inc.
InventorsDavid C. Meyer, Thomas R. Lanham, Shane A. Hartman
Life of this patent
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Abstract
An organic-coated, chrome-plated fastener includes a fastener body having one or more friction regions that are adapted to slidably engage another structure when the fastener is used for fastening. Some or all of the fastener body may be chrome-plated, including at least one of the friction regions. The at least one chrome-plated friction region may be coated with an organic composition that is selected to control a coefficient of friction of the at least one chrome-plated friction region.
Claims21
An organic-coated, chrome-plated fastener, comprising:
- a fastener body;
- said fastener body having one or more friction regions that are adapted to slidably engage another structure when said fastener is used for fastening;
- some or all of said fastener body being chrome-plated, including at least one of said friction regions;
- and
- said at least one friction region that is chrome-plated being coated with an organic composition, said organic coating being selected to control a coefficient of friction of said at least one chrome-plated friction region.
A method for fabricating an organic-coated, chrome-plated fastener, comprising:
- providing a fastener body;
- said fastener body having one or more friction regions that are adapted to slidably engage another structure when said fastener is used for fastening;
- chrome-plating some or all of said fastener body, including at least one of said friction regions;
- and
- coating said at least one friction region that is chrome-plated with an organic composition, said organic composition being selected to control a coefficient of friction of said at least one chrome-plated friction region.
An organic-coated, chrome-plated fastener, comprising:
- a fastener body;
- said fastener body having one or more friction regions that are adapted to slidably engage another structure when said fastener is used for fastening;
- all of said fastener body being chrome-plated with a chrome-plating layer, including said one or more friction regions;
- said chrome-plated friction regions being coated with an organic composition, said organic coating being selected to control a coefficient of friction of said chrome-plated friction regions;
- said organic coating comprising a cured resin containing a metal particulate and a friction modifier;
- said cured resin comprising an epoxy, said metal particulate comprises aluminum, and said friction modifier comprises polytetrafluoroethylene (PTFA);
- said organic coating being a chrome-free aluminum-rich organic composition designed to be applied to an inorganic zinc-rich basecoat that comprises (by weight) 33.0-35.0% propylene glycol monomethyl ether acetate (PMA), 6.0-8.0% polytetrafluoroethylene (PTFA), 4.0-6.0% aluminum, 4.0-6.0% n-butyl alcohol, 3.0-5.0% dimethy glutarate, 1.0-3.0% magnesium oxide, 1.0-3.0% aromatic petroleum distillate, 0.0-2.0% Stoddard solvent and <1.0% napthalene;
- said organic coating having a thickness of between approximately 0.00008-0.0005 inches;
- said organic coating adhering to said at least one chrome-plated friction region at a 5B adhesion strength rating using ASTM D3359-09 Method B adhesion testing;
- and
- said chrome plating layer being microporous.
Dependencies are inferred from the claim text.