Method and apparatus for application of liquid materials onto substrates
AssigneeND Industries, Inc.
InventorJohn S. Wallace
Life of this patent
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Abstract
A method and apparatus for application of liquid materials onto substrates is provided. The present invention allows high speed selective application of curable liquids to a continuous succession of discrete substrates and subsequent curing of those liquids in order to form a solid or foamed coating on at least a portion of the substrates. The present invention provides increased speed efficiency and adherence of the liquid cured onto the substrates.
Claims33
A method of selective application of curable liquid material to portions of fastener comprising the steps of:
- movably supporting said fastener;
- retaining said fastener in a stabilized and stationary orientation during its entire treatment to restrict rotation of said fastener;
- adjusting the position from which curable liquid material will be applied along at least two different axes in relation to said fastener;
- applying a first amount of curable material onto a selected first portion of said fastener;
- applying a second amount of curable material onto a selected second portion spaced from and not in contact with any of said first amount applied in said first applying step of said fastener;
- and
- exposing said article to a radiation source for a time sufficient to cure at least a portion of said first and second amounts of said curable liquid material applied to said fastener.
An apparatus for selective application of heat curable liquid material to portions of an article to form a gasket thereon, comprising:
- means for movably supporting said article;
- stationary magnetic means for stabilizing and restricting rotation of said articles on said support means for treatment, said magnetic means located along substantially the entire length of said supporting means;
- first means for applying a first preselected amount of heat curable liquid material onto a first selected portion of said article;
- means connected to said first applying means for selectively adjusting the location of said first applying means along at least two different axes in relation to said article;
- second means for applying a second preselected amount of heat curable liquid material onto a second selected portion of said article that is spaced from said first selected portion of said article such that said second amount of liquid material does not contact any of said first amount when applied by said second applying means, said second applying means being spaced from said first applying means and located along said supporting means;
- means connected to said second applying means for selectively adjusting the location of said second applying means along at least two different axes in relation to said article;
- and
- means for heating said article in order to cure and adhere said heat curable liquid material applied to said article by said first and second applying means to form a gasket on a portion thereof, said heating means being disposed adjacent said supporting means.
A method of selective application of heat curable liquid material to form a gasket on a selected portion of an article comprising the steps of:
- movably supporting said article;
- retaining said article in a stabilized and stationary orientation during its entire treatment to restrict rotation of said article;
- adjusting the position from which heat curable liquid material will be applied along at least two different axes in relation to said article;
- applying a first amount of heat curable material onto a first selected portion of said article;
- applying a second amount of heat curable material onto a second selected portion of said article spaced from said first selected portion such that when said second amount of material is applied it does not contact any of said first amount of material applied in said first applying step;
- and
- heating said article for a time sufficient to cure said heat curable liquid material applied to said article and form a gasket on a portion thereof.
Dependencies are inferred from the claim text.