Static structures (e.g. – buildings) – With adjunctive means for assembly or disassembly – Structure includes tool or opening to provide access for a...
Patent
1975-10-15
1977-01-11
Ridgill, Jr., James L.
Static structures (e.g., buildings)
With adjunctive means for assembly or disassembly
Structure includes tool or opening to provide access for a...
52303, 52743, 52704, E04B 141, E04C 512
Patent
active
040019896
ABSTRACT:
A method and an apparatus for fixing an object to a low-strength support structure having interior cavities includes inserting an anchor member and an expandable element, which has an interior space and which is positioned about the anchor member, into an anchoring hole provided in the support structure. The expandable element has a closed end which encloses the leading end of the anchor member which, in turn, has an internal passage that extends from its leading end towards its trailing end and which communicates with the interior space of the expandable element. A device is inserted into the passage and ejects a hardenable substance under pressure into the passage and from there into the interior space so that a predetermined amount of the substance fills the space and forms a plug about the anchor member. The expandable element partially fills the cavity and fixes the anchor member securely in the anchoring hole upon the hardening of the substance. A flange is provided at the trailing end of the anchor member to seal the anchor hole against outflow of the hardenable substance therefrom. A sleeve member tightly engages an open end of the expandable element and prevents the same from becoming detached from the anchor member during the pressurized insertion of the substance into the expandable element.
REFERENCES:
patent: 3016578 (1962-01-01), Rohe
patent: 3108404 (1963-10-01), Lamb
patent: 3485282 (1969-12-01), Lopez et al.
Ridgill, Jr. James L.
Striker Michael J.
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