Fastener improvement including introduction of selected capsule of adhesive into porous basket hung in bore for activation by fastener installation
AssigneeInvocas, Inc.
InventorIsrael Stol
Life of this patent
Estimating the term…
Abstract
Into a bore which is about to receive a fastener such as a screw, nail or bolt, an adhesive capsule support basket is first placed and mounted at a desired intermediate level. One or more capsule(s) containing adhesive is (are) inserted into the bore and become supported by the basket at the intermediate level. As the fastener is installed, it contacts and bursts the capsule(s), spreading the adhesive at the fastening region. The basket, which is rather flimsy, is destroyed by installation of the fastener, after having performed its role.
Claims12
A fastener improvement, comprising:
- material to be fastened, having means defining a bore therein through a face thereof, said bore having a mouth, an axially extending peripheral sidewall and an inner end;
- a fastener having a shank with a tip end and a head, the fastener being adapted to have the tip end and shank thereof received in said bore through said mouth;
- a basket for adhesive capsule means including floor means for supporting adhesive capsule means, and means for disposing the floor means at a selected intermediate level in said bore substantially before said inner end;
- and
- adhesive capsule means including at least one thin-walled jacket encapsulating a respective quantum of adhesive, each such capsule being adapted to be received in the bore and supported upon said floor means ahead of the tip end of said fastener and to have the jacket thereof ruptured by compressive engagement between the fastener tip end and the floor means of said basket so as to spread said adhesive into the interfacial fastening region that is defined between said fastener shank and said material within said bore;
- said floor means disposing means said basket include tab means for externally engaging said material about the perimeter of said bore mouth, and connector means extending axially between said floor means and said tab means;
- and
- said connector means and tab means being provided as a plurality of respective leg members each having a connector means portion integrally joined to a tab means portion.
For installation in respect to a material that is to be fastened, which material has means defining a bore therein, including amouth at a face, a bore wall and an inner end,
- a fastener improvement, comprising:
- a basket including means insertable into said bore through said mouth for providing a support platform for a body of adhesive at a desired intermediate level substantially before said inner end;
- a fastener having a shank with a tip end, and a head, the fastener shank being insertable tip end first into said bore;
- and
- a body of adhesive adapted to be received in said bore through said mouth and supported on said support platform at said desired level;
- the fastener shank being of such length that as said fastener shank is inserted into said bore said body of adhesive material while supported on said support platform providing means contacts said shank and said bore wall and thereby adhesively connects the fastener to the material in the vicinity of said desired level;
- support platform disposing means for said basket including tab means for externally engaging said material about the perimeter of said bore mouth, and connector means extending axially between said support platform and said tab means;
- and
- said connector means and tab means being provided as a plurality of respective leg members each having a connector means portion integrally joined to a tab means portion.
Dependencies are inferred from the claim text.