Self-fastened heat sinks

Claim 1

Self-fastened heat-sink apparatus comprising first and second broad-area metal heat-transfer elements each having a broad-area side shaped to abut closely with one of two oppositely-disposed spaced surfaces of a body from which heat is to be withdrawn and dissipated, each of said elements having first and second connection means each integral therewith and projecting therefom substantially in opposite directions from laterally-opposite edges thereof, said elements and connection means being of sheet metal, the first connection means and the second connection means of both of said elements each being separable and disposed respectively as cooperating halves of a clasp which locks and orients said elements toward one another for abutting and holding engagements of the broad-area sides thereof with the spaced surfaces of a body therebetween, said first and second connection means each including two separate parallel clasp parts partly rolled outwardly and inwardly, respectively, from two different elongated projections from edges of said first and second heat-transfer elements, said clasp parts being open to receive and catch with one another in pawl-like fashion when said elements are moved toward one another to produce said abutting engagements, said connection means exhibiting resilience and resiliently urging said elements toward one another for said abutting and holding engagements, whereby said elements are separable to accommodate insertion of a body therebetween and may then be clasped and locked together by way of said clasp parts while maintaining resilient abutting engagements with surfaces of the body therebetween.