Jam together fastener

Claim 2

An assembly for fastening apertured parts together in abutting relation, said apertured parts having a uniformly alignable circular hole therethrough, said assembly comprising: a resilient female member containing a longitudinal bore therethrough and including a head of larger size than said hole of the apertured parts, a cylindrical sleeve being substantially equal in diameter and length to the respective diameter and length of said circular hole of the apertured parts, and a deformable terminal flange of greater size than said sleeve and integrally joined thereto and including a bore portion formed as a protuberant recess; and a rigid male member including a head of larger size than said hole of the apertured parts and a shank joined to said head being shorter in length than said female member and substantially equal to the size of said longitudinal bore of the female member, said shank terminating opposite said male head in an end portion greater in size than said female bore, smaller in size than said hole of the apertured parts, and substantially symmetrical about the axis of said male shank; whereby said terminal flange and sleeve of the female member may be inserted through said hole with the head of the female member engaging one of said apertured parts and the terminal flange engaging the other of said apertured parts, with said sleeve disposed within the hole therethrough, and said end portion and shank of the male member may be forced through said bore of the female member for said female head to grippingly hold said male end portion, while compressive force of the male head causes said female terminal flange to buckle radially outwardly forming a bulge to firmly secure said apertured parts together in abutting relation between said bulge and said female head with said female member insulating said male member from contact with said apertured parts.

Claim 3

The assembly as in claim 1, said male end portion having a dished depression centrally therein.

Claim 4

An assembly for fastening apertured parts together in abutting relation, said apertured parts having a uniformly aLignable circular hole therethrough, said assembly comprising: a resilient female member containing a longitudinal bore therethrough and including a head of larger size than said hole of the apertured parts, a cylindrical sleeve being substantially equal in diameter and length to the respective diameter and length of said circular hole of the apertured parts, and a deformable terminal flange of greater size than said sleeve and integrally joined thereto and including a bore portion formed as a protuberant recess and a rigid male member including a head of larger size than said hole of the apertured parts and a threaded shank joined to said head being shorter in length than said female member and being circular in cross-section, said shank tapering outwardly from said head to an outer end portion, the portion of said shank immediately adjacent said head being substantially equal to the size of said longitudinal bore of the female member and the end portion of said shank remote from said head being greater in size than said female bore and smaller in size than said hole of the apertured parts; whereby said terminal flange and sleeve of the female member may be inserted through said hole with the head of the female member engaging one of said apertured parts and the terminal flange engaging the other of said apertured parts, with said sleeve disposed within the hole therethrough, and said end portion and shank of the male member may be forced through said bore of the female member for said female head to grippingly hold said male end portion, while compressive force of the male head causes said female terminal flange to buckle radially outwardly forming a bulge to firmly secure said apertured parts together in abutting relation between said bulge and said female head with said female member insulating said male member from contact with said apertured parts.

Claim 5

An assembly for fastening apertured parts together in abutting relation, said apertured parts having a uniformly aLignable circular hole therethrough, said assembly comprising: a resilient female member containing a longitudinal bore therethrough and including a head of larger size than said hole of the apertured parts, a cylindrical sleeve being substantially equal in diameter and length to the respective diameter and length of said circular hole of the apertured parts, and a deformable terminal flange of greater size than said sleeve and integrally joined thereto and including a bore portion formed as a protuberant recess and a rigid male member including a head of larger size than said hole of the apertured parts and a threaded shank joined to said head being shorter in length than said female member and being circular in cross-section, said shank tapering outwardly from said head to an outer end portion, the portion of said shank immediately adjacent said head being substantially equal to the size of said longitudinal bore of the female member and the end portion of said shank remote from said head being greater in size than said female bore and smaller in size than said hole of the apertured parts; whereby said terminal flange and sleeve of the female member may be inserted through said hole with the head of the female member engaging one of said apertured parts and the terminal flange engaging the other of said apertured parts, with said sleeve disposed within the hole therethrough, and said end portion and shank of the male member may be forced through said bore of the female member for said female head to grippingly hold said male end portion, while compressive force of the male head causes said female terminal flange to buckle radially outwardly forming a bulge to firmly secure said apertured parts together in abutting relation between said bulge and said female head with said female member insulating said male member from contact with said apertured parts.